Manuel d'utilisation / d'entretien du produit 120Lg du fabricant NEC
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Propr ietary Notice and Liability Disclaim er The information disclosed in this document, including all designs and related materi als, is the valuable propert y of NEC Solutions (America), Inc.
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Contents iii Contents Proprieta r y Notice Using This Guide Text Conventions .................................................................................................................. x Related Docum ents ......................................
iv Contents Powering On Your Syst em ............................................................................................ 2-7 Powering Off th e Server Sy stem ................................................................................... 2-8 Forcing a Power Shu tdown .
Contents v Modifying the System Board ........................................................................................... 4-10 Replacing the Real- time Clock Battery....................................................................... 4-10 Removing and Installing a Processo r .
vi Contents Preparing th e System for Diag nosing Prob lems .................................................... 5-8 Monitoring POST .................................................................................................. 5-9 Verifying Proper Opera tion of Key System Indicators .
Contents vii Cable List ..................................................................................................................... .6 - 7 A . Specifications System Specification s ............................................................
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Usin g This Guide ix Using This Guide Welcome to the E XPRESS 5800/120Lg Service Guide. This service guide has all the information found in the System User’s Guide, including disassembl y and reassembly instructions for all field replaceable units (FRUs).
x Using This Guide Text Conventions This guide uses the following text conventions. Warnings, cautions, and notes have the following meanings: ! WA RN I N G W arnings alert you to s ituations that cou ld res ult in s erious persona l inj ury or los s of lif e.
Using This Guide xi Related Docum en ts In addition to this guide, the following sy stem documentation is included with your server either as el ectronic files on E XPRES S B UILDER or as p aper cop y shipped with your server. ! System Release Notes Release Notes provide you with the latest information about your system.
xii Using This Gui de Safety Notices ! ! Caution: To reduce the risk of el ectric shock which could cause p ersonal injur y, follow all safet y notices. The symbols shown are used in y our documentation and on your equipment to indicate safet y hazards.
Using This Guide xiii Safety Notices for Users Outside of the U.S.A. and Canada ! PELV (Protected Extra-Low Voltage) Integrity: T o ensure the extra -low voltage integrity of the equipment, connect only equipment with mains-protected electricall y- compatible cir cuits to the externa l ports.
xiv Using This Guide Care and Handling Use the followin g guideli nes to properl y handle and car e for your system. Protect t he s ystem fr om extr emely low or h igh tem peratur es. Let the syst em warm (or cool) to r oom tem perature b efor e using it .
1 System Overview ! Overvi ew ! System Features ! System Chassis Features ! Standard Features ! Power Supplies ! Peripheral Bays ! System Functions ! Security.
1-2 System Overview Overview Your server is a modular, multiprocessin g server based on the Intel® Xeon microprocessor famil y. It is a solid performer and offe rs the latest technology. The combination of compute performance, memor y capacity, and integrated I/O provides a high performance envi ronment for man y server market applications.
System Overview 1- 3 System Features Your system features the followin g major components: ! Single or dual high-performance Intel™ Xeon™ 1.80GHz or 2.66GHz processors. ! 256 MB to 4 GB of ECC SDRAM two way interleaved memory, using up to four DIMMs.
1-4 System Overview System Chassis Features Figure 1-2 shows the s ystem front view features seen with the front door closed. Front View 1 2 1 Front door Open this d oor to acce ss the PO WER sw itch, 5.25-i nch dev ices, the CD-ROM drive, or the floppy dis k drive, or to inst all/re move hard d isks to 3.
System Overview 1- 5 Front View (Door Opened) Figure 1-3 shows the s ystem front view features seen with the front door ope ned. 1 2 CD-ROM Drive Floppy Disk Drive Figure 1-3.
1-6 System Overview 1 5.25-inch device bay Backup ta pe driv es may be inst alled in the 5 .25-inch dev ice bay . 2 CD-ROM drive The CD- ROM driv e reads dat a from t he inserted CD -ROM .
System Overview 1- 7 Rear View Figure 1-4 shows the s ystem rear view features. 1 16 -1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 15 17 -1 16 -2 17 -2.
1-8 System Overview 1 Power supply The pow er unit supp lies DC pow ers t o the server . 2 AC inlet The AC inlet is conne cted w ith the pow er cord. 3 DC power lamp The AC power lamp bli nks green if the pow er supply re ceive s the AC power through the power cord.
System Overview 1- 9 Interna l View Figure 1-5 shows an internal view of your system with the air duct covers r emoved. 1 Power supply 2 DIMMs (fac tory -in st al led in slot s #1A and #1B.) 3 CPU1 (fac tory-installed) 4C P U 2 5 5.25-inch device bay s (4 slot s) A st andard CD-R OM driv e is inst alled i n slot #3.
1-10 System Overview System Board Features Figure 1-6 shows details of the s ystem board. 1 2 3 4 5 9 8 7 6 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26.
System Overview 1- 11 1 Power signa l connector 2 Power conne ctor 3 DIMM socket s ( slots # 1A, #1B, #2A, an d #2B from top to botto m) 4 CPU1 sock et 5 CPU2 sock et 6 Floppy dis k drive con nector 7.
1-12 System Overview Standard Feature s High performance Expandability ! Intel X eon Processor N8100-865F: 1.8GH z N8100-866F: 2.66GH z ! High-speed 1000BASE-T/100BASE-T X/ 10BASE-T interface .
System Overview 1- 13 Xeon™ Processors Depending on s ystem configuration, each system includes one or two Intel Xeon 1.80GHz or 2.66GHz processors. E ach processor plu gs into a INT3/FCPGA socket package. The processor includ es a 512K cach e. When two proc essors are installed, both processors must be of identical bus and co re speed.
1-14 System Overview The Network controller supports the following featur es: ! 64-bit, 100 MHz PCI-X interface ! Integrated IEEE 802.3 10Base-T, 100Base-TX, and 1000 Base-T compatible PHY ! IEEE 820.
System Overview 1- 15 ! s1: Processor sleep state. No context will be lost in this sta te and the proce ssor caches will maintain coherenc y. ! s4: Hibernate or Save to Disk. The memory and machine state are s aved to disk. Pressing the power button or other wakeup event restores the s ystem state from the disk and resumes normal operation.
1-16 System Overview ! Controls secure mode, including video blanking, diskette write-protect monitoring, and f ront panel lock/unlock initiation ! Controls Wake On LAN via Magic Packet support. Power Supplies The system contains one auto-sensing 450-watt power suppl y at an operating frequen c y of 50/60 Hz.
System Overview 1- 17 System Functions The following subsections describe select s ystem functions. Degradation Featur e The degradation fe ature automati call y isolates a failed DIMM or processor to.
1-18 System Overview Security To help prevent unauthorized entr y or use of the s ystem, the system includes a full lockable front panel and Server Man agement software that monitors the system intrusion switches.
2 Setting Up the System ! Overvi ew ! Selecting a Site ! Unpacking the System ! Making Connections ! Connecting the Power Cord ! Using the System.
2-2 Settin g Up the Sy stem Overview This chapter describes how to sel ect a site, unpack the s ystem, make cable connections, and power on the s ystem units. Information on front and rear panel features, switches and LEDs ar e also included in this chapter.
Setting Up the System 2-3 Unpacking the System ! WA RN I N G The non-hot- swa p system can weigh up t o 40 po unds (18 k g) and the ho t-swap s ystem can weigh up to 7 7 poun ds (35 k g). If the s ystem contains n um erous optio nal boar ds and peri pheral d evices, it will weigh m or e.
2-4 Settin g Up the Sy stem ! Before c onnecting a third-party per ipheral device or inter face cable to the server, consult with your sales agent. Some third-part y devices may not be used with the server. ! The total length of a cable (including the connection cable within a SCS I device) is limite d by the SCSI standard.
Setting Up the System 2-5 Connecting the Powe r Cord Plug the female end of each AC power cord shipped with your system into the input receptacle on the rear o f each power suppl y shipped with your system. Plug the male end of the power cord into NEMA 5-15R outlet for 100-120 VAC or NEMA 6-15R outlet for 200-240 VAC.
2-6 Settin g Up the Sy stem ! Verify that the access lamp on the diskette drive is unlit before tur ning off the server or ejecting the flopp y disk. Turning off the server or ejecting the floppy disk while the access la mp is lit may damage data being stored on the floppy disk.
Setting Up the System 2-7 Powering On Your System Power on your s ystem as follows. 1. Make sure all external devices, su ch as a video displa y, keyboard, and mouse (optional) have been conn ected, and the power cor ds are conne cted. 2. Power on the video display and an y other external devices.
2-8 Settin g Up the Sy stem Powering Off the Se rver System When server s ystem power is on, pressing the power on/off switch on the front panel of the server turns the power o ff. To turn the server s ystem power off: 1. Shutdown the operating system (OS).
3 Configuring Your Sy stem ! Configuring Your System ! BIOS Setup Utility ! SCSISelect Utility ! Configuring the RAID Co ntroller ! Configuring System Board Jumpers.
3-2 Configuring Your System Configuring Your System Configuration a nd setup utilities are used to change your sy stem configuration. You can confi gure your system, as well as option boards you may add to your system, using the BIOS Setup Utility .
Configuring Your System 3-3 BIOS Setup Utility The BIOS Se tup Utility is used to c hange system configuration para meters. The utility is r esident in the sy stem FLASH memory and does not require a diskette or an operating system present to run. Using the BIOS Setup Utility You access the BIOS Setup utility when you turn on or reboot your system.
3-4 Configuring Your System Ke y Function in Setup M enu F1 or Alt-H Get Help about an ite m. ESC Exit the curren t menu and return to the pr evious me nu. Left or righ t arrow key s Move betw een menus. Up or down arrow keys Move cursor up and down. T he cursor mov es only to the settings tha t you c an cha nge.
Configuring Your System 3-5 Main Menu Feature Choices or Display Only Description Your Setting System Time HH:MM:SS Set the System Time. System Date MM/DD/YYYY Set the System Date. Floppy A Disabled 1.44/1.25 Mb 3½” 720Kb 3.5” 2.88MB 3.5” Hidden if n ot detected.
3-6 Configuring Your System Prim ary and Seco ndary Mast er and Sl ave IDE Subm enus Feature Choices or Display Only Description Your Setting Type Au to None Select Auto if a devi ce is attached to th e IDE chan nel.
Configuring Your System 3-7 Advanced Menu Feature Choices or Display Only Description Your Setting PCI Configurati on Select sub-m enu. Peripheral Co nfigurat ion Select sub-m enu. Memory Configuration Select sub-menu. Advanced C hipset Control Select su b-menu.
3-8 Configuring Your System PCI Config uratio n Menu Feature Choices or Display Only Descr iption Your Setting Onboard NIC 1 (10/100M B) Select su b-menu. Onboard NIC 2 (1.0GB) Select sub-m enu. Onboard SCSI Select sub-menu. Onboard Video Select sub-m enu.
Configuring Your System 3-9 Onboard N IC 1 / O nboar d NIC 2 Su bm enu Feature Choices or Display Only Description Your Setting Onboard NIC 1 Enabled Disabled Enables or disables onboard LAN controlle r . Onboard NIC 2 Enabled Disabled Enables or disables onboard LAN controlle r .
3-10 Configuring Your System Bi-Direction al EPP ECP EPP V ersion 1.7 1.9 Selects t he version for Enhan ced Parallel Port (EPP) m ode. ECP M ode DMA Channel 0 1 2 3 Selects t he DM A channel for Extended Ca pabilit ies Port (EC P) mode.
Configuring Your System 3-11 Wake on PME Disabled Enabled Enabl es or dis abl es t he r emote power- on featur es by PCI de vice ( PCI Power Management Enable wak e up eve nt ) install ed to the PCI r iser C. Wake on RTC Alarm Di sabled Enabled Enabl es or dis abl es t he r emote power- on featur es usi ng RTC Alarm feat ures.
3-12 Configuring Your System Server Menu Feature Choices or Display Onl y Description Your Setting System Management Select Su bmenu Console Redirectio n Select Submenu Event Log Configurati on Select Submenu Assert N MI on PERR Disabled Enabled Sets support of PCI PERR.
Configuring Your System 3- 13 Server Menu (Continued) Feature Choices or Display Onl y Description Your Setting Boot Monitoring Policy Retr y 3 Time s Retry Service Boot Always Retest This ite m indicate s the process ing at the occur rence of timeout during boot monitoring.
3-14 Configuring Your System Secondary HSBP Revis ion – Indicates s econdary HSBP (Ho t-Swap Backplane) rev ision number . (View only) Console Re direction Subm enu Feature Choices or Display Onl y .
Configuring Your System 3- 15 Boot Menu Feature Choices or Display Onl y Description Your Setting Boot Device Priority Select sub-m enu. Hard Disk Drives Select sub-m enu.
3-16 Configuring Your System Removabl e Devices Subm enu Item Description List s Bootab le Removable dev i c es in t he s ys t em. Select one of t he detected dev ices. This li st include s legacy 1.44-M B floppy drives a nd 120- MB floppy driv es. Lists A T API CDROM Drives Selects the Boot seq uen ce fro m available devices.
Configuring Your System 3- 17 SCSI Select Utility The SCSI Select Utility detec ts and configures the SCSI controller located on the system board or an optional SCSI controller board installed in your s y st em. This utility may b e started with a simple key operation while POST is in prog ress and requires no specific start-up disk.
3-18 Configuring Your System Adaptec SCSI Utility Confi gur ati on Settings The following ke ys a r e active for all Adap tec SCSI Utility screens: Ke y Action Arrows Up and down arrows move from o ne parameter to a nother w ithin a scree n. ENTER Display s options for a configurable parameter.
Configuring Your System 3- 19 Table 3-1. SCSI Select Uti li t y Setup Configurati ons (continued) OPTION RECOMMENDED SETTING OR DISPLAY ONLY YOUR CONFIGURATION Display <Ctrl-A > Messages During .
3-20 Configuring Your System With this screen you can determine the SCS I I Ds for installed options. You can also view the device information b y selecting a device and pressing Enter .
Configuring Your System 3- 21 Configuring the RAI D Controller RAID (Redundant Arra y of Independent Devices) options are av ailable for your system, providing a dded s ecurity and high availability . If you order a s ystem with a RAID cont roller, the system is pre-con figured at the factor y accordin g to Table 3-2 belo w.
3-22 Configuring Your System Configuring System Board Jumpers Before You Begin Only a qualified technical person should p erform the procedu res in this section. ! CA UTI ON Electrost atic d ischarge (ESD) can d am age the s ystem board. Modif y the system board only at an ESD work s tation.
Configuring Your System 3- 23 Table 3-3. Password/CMOS System Board Jumpe r Summary Jumper Function Jumper On/Off (default in bold) What it does at sy stem reset. A CMOS clear Off, Protect On, Erase Preserves the con tents of CM OS. Clears CMOS. B Password di sable Off, Enable On, Dis able Enables password protecti on.
3-24 Configuring Your System Clearing and Changi ng the Passwords To clear and ch ange the pass words: 1. Shut down the OS. 2. Press the POWER switch to turn off the power of the serv er. (The POWER/SLEEP lamp goes off.) 3. Remove the side cover. Refer to Chapter 4 fo r information on removing the side cover.
4 Disassembly and Reassembly ! General Information ! Static Precautions ! Equipment Log ! Tools Recommended for Upgrading Your System ! Preparing Your System for Disassembl y and Reassembly ! Side Acc.
4-2 Disassembly and Reassembly ! Hot-Swap SCSI Backplane ! Replacing the Rear Cooling Fan ! System Board ! Power Supply Back Board ! Tower Feet ! I/O Shield ! LED/Switch Assembly ! Intrusion Switch As.
Disassembly and Reassembly 4-3 General Information ! WA RN IN G The DC push- button on/of f switch o n the f ront pane l does not turn of f the s ystem AC power. A lso, +5 vdc is presen t on the system boar d whene ver the AC po wer cord is connec ted between t he s ystem and an AC out let.
4-4 Disassembly and Reassembly Tools Recommended for Up grading Your System Depending on the upgrade, y ou will need one or more of the f ollowin g tools: ! Phillips screwdriver (#1 bit and #2 bit) ! .
Disassembly and Reassembly 4-5 Side Access Panel To install options in your system, you must remove the access panel on the left- hand side of the s ystem (as viewed from the front). The side acc ess panel on the right-hand side of the system (as viewed from the fr ont) does not have to be removed.
4-6 Disassembly and Reassembly Figure 4-1. Removing the Le ft-Hand Side Access Panel To install the left side access panel (see Fi gure 4-2): 1. Check to make sure that no tools or loose parts have been l eft inside the system chassis.
Disassembly and Reassembly 4-7 Figure 4-2. Installing the Left-Hand Side Access Pane l.
4-8 Disassembly and Reassembly Processor Air Duct To install or remove the DIMM or a processor, you will nee d to remove the air duct. IMPOR T A NT: Do not assemble the server without installing the air duct.
Disassembly and Reassembly 4-9 Installation Follow these ste ps to install the air duc t. 1. Holding the int ernal cables clear, pl ace the air du ct int o the chassis. S ee Figure 4-4. 2. Adjust the air duct until the ta b on the ri ght end of the du ct is aligned with the slot on the chassis.
4-10 Disassembly and Reassembly Modifying the System Board The following sections provide procedures for upgrading and confi guring the system board in your system. Topics covered include: ! Replacing th e real-time cloc k battery ! Removing a nd installing a proce ssor ! Installing or removing DIMMs.
Disassembly and Reassembly 4-11 To replace the RTC batter y, perform the following procedures: 1. Observe the safet y and ESD precautions listed under General Information and Static Precautions at the beginning of this chapter. 2. Open the front bezel of your system's cabinet.
4-12 Disassembly and Reassembly 19. Run the BIOS Se tup to restore the configuration setting s to the real-time clock. Figure 4-5. Replacing the Real-Time Clock Battery.
Disassembly and Reassembly 4-13 Removing and Installing a P r ocessor This subsection provides the procedures for removing and installing a Xeon processor in your sy s tem. The s ystem board has sockets for two processors. Each Xeon proc essor plugs into a standard Xeon ZIF socket.
4-14 Disassembly and Reassembly CPU Installation 1. Observe the safet y and ESD precautions listed under General Information and Static Precautions at the beginning of this chapter. 2. Open the front b ezel of your s ystem's cabinet. 3. Shutdown the operating system (OS).
Disassembly and Reassembly 4-15 Figure 4-7. Raising the Locking Lever 11. Aligning the pins of the CPU with the socket, insert the CPU slowly and gently into the socket. See Figure 4-8. IMPORT ANT : Be aware of CPU direc tion . Pin la youts on t wo corn ers among f our differ from other s to preve nt an inc orrect i nsertio n.
4-16 Disassembly and Reassembly Figure 4-9. Closing the Locking Lever 13. Very car efully apply the the rmal interface mater i al (heat radia tion sheet) on top of the processor so that it is completel y covered. See Figure 4-10. Notes: T he therm al m aterial m ay alrea dy be applied to the heat s ink.
Disassembly and Reassembly 4-17 Figure 4-11. Installing the Heatsink 15. Install both heat sink clips as follows: ! CA UTI ON Do not allo w the he at sink to roc k back and f orth while securing t he heat sink clips. If the CPU becom es dis lodged from the socket, c atastrophic failure m a y occur.
4-18 Disassembly and Reassembly 16. Ensure the heat sink is level. NOTES: ! If the he at sink is not le vel, rem ove it, and then i nstall it ag ain. The follo wing prob ably ca uses the heat s ink not t o be lev el: – The CPU is not pos ition ed corr ectl y .
Disassembly and Reassembly 4-19 CPU Removal 1. Observe the safet y and ESD precautions listed under General Information and Static Precautions at the beginning of this chapter. 2. Prepare your system for up grade. See Preparing Y our System for Disassembly and Reassembly described ear lier in this chapter.
4-20 Disassembly and Reassembly 8. Reinstall the a ir duct. 9. Reinstall th e left-hand side access p anel on the s ystem chassis. 10. Plug in the system power cord(s) and power up the s ystem. DIMMs The system board cont ains four DIMM sockets ( Figure 4-15).
Disassembly and Reassembly 4-21 Installing DIMMs 1. Observe the safet y and ESD precautions listed under General Information and Static Precautions at the beginning of this chapter. 2. Open the front bez el of your s ystem's cabinet. For tower-ba sed s ystems see Opening the Front Bezel of the Tower Cabinet in Chapter 2.
4-22 Disassembly and Reassembly Figure 4-16. Removing the DIMM Connector Cover 11. Holding a DIMM module only by the edges, remove it from its antistatic package. ! CA UTI ON Observe s tatic pr ecauti ons. Use an ant istatic wris t strap. Hold the DIM M onl y by its edges.
Disassembly and Reassembly 4-23 Removing DIMMs ! CA UTI ON Use extrem e c are when rem oving a DIMM. T oo m uch pressur e can dam age the s ock et slot.
4-24 Disassembly and Reassembly Figure 4-18. Removing a D I MM 12. Repeat the a bove steps to remove the remaining DIMMs. 13. Reinstall the processor air du ct. 14. Reinstall th e left-hand side access p anel on the s ystem chassis. 15. Plug in the system power cord(s) and power up the s ystem.
Disassembly and Reassembly 4-25 Hard Disk Drives Your system supports a variet y of SCSI hard disk drives installed in the system’s hard disk drive bay. Contact your sales representative or d ealer for a list of approved devices. The 3.5-inch hard disk drive ba y on the front of the server contains six slots on which hard disks can be installed.
4-26 Disassembly and Reassembly Figure 4-19. Removing the Dummy Tray 5. Unlock the lever of the hard disk drive c arrier and open the handle. See Figure 4-20. Figure 4-20. Unlocking the Drive Carr ier 6. Align the drive carrier with the bay guide ra il.
Disassembly and Reassembly 4-27 Figure 4-21. Installing the Hard Disk Drive 8. Close the lever ensuri ng the d rive is secu red. The handle i s locked when a distinct click is heard.. See Figure 4-22. Figure 4-22. Locking the Hard Disk Drive Carrier 9.
4-28 Disassembly and Reassembly Removal NOTE: The dis k LED of a def ective har d disk drive is am ber. 1. Prepare your system for up grade. See Preparing Y our System for Disassembly and Reassembly described ear lier in this chapter. 2. Release the lock of the front bez el by using the security key to open the front bezel.
Disassembly and Reassembly 4-29 Figure 4-25. Removing a Hard Disk Drive 6. If not replacing the hard disk removed, insert a dumm y carrier tra y into the empty slot. IMPORT ANT : T o maintain the c ooling eff ect in t he ser ver , install the dumm y tray in the vacant s lot of th e disk bay .
4-30 Disassembly and Reassembly Hot-Swap Power Supply Your server ma y contain a modular hot-swap power suppl y like the one shown in Figure 4-26. The addition of a second hot-swa p power suppl y makes your system so that it has redundant power and can be ope rated continuousl y without interruption if eithe r of the power supplies malfunction.
Disassembly and Reassembly 4-31 4. Slide the power supply into the vacant slot until you feel resistance. See Figure 4-28. IMPORTAN T : ! Make s ure that the handl e is in f ull-op en pos ition. ! T o avoid dam agin g the po wer sup pl y unit, do not tilt or twi st t he unit as you push it int o the conn ector .
4-32 Disassembly and Reassembly 6. Push the power supply handle toward the power suppl y until the locking tab snaps into place. See Fi gure 4-30. Figure 4-30. Securing the Power Supply 7. Connect two power cords to the AC inlets. The AC Power l amps go on and DC Power lamps blink when the power cords are connected.
Disassembly and Reassembly 4-33 Removal 1. Check the Power Status lamps of the power supplies on the rear face and determine which module needs to be replac ed.
4-34 Disassembly and Reassembly Non-Hot-Swap Power Sup ply Your server s ystem may contain a single non-hot-swap power suppl y that is housed in the rear of the chassis as shown in Figure 4-33. Removal 1. Prepare your system for disassembl y . See Preparing Y our System for Disassembly and Reassembly earlier in this c hapter.
Disassembly and Reassembly 4-35 Front Cooling Fan Uni t The optional front cooling fan unit contains up to two fans for cooling the CPU, memory , and PCI device s built in the server. Installation 1. Prepare your system for up grade. See Preparing Y our System for Disassembly and Reassembly described ear lier in this chapter.
4-36 Disassembly and Reassembly 4. Insert the tabs into holes on the frame of the serv er, and push the cooling fan unit toward the frame. See Figure 4-35. Figure 4-35. Securing the Fan Unit 5. Connect the cooling fan cable to the s ystem board. See Figure 4-36.
Disassembly and Reassembly 4-37 Removal 1. Prepare your system for up grade. See Preparing Y our System for Upgrade described ear lier in this chapter . 2. Remove the left-hand side cover. 3. Remove the fan unit connector from the s ystem board. See Figure 4-37.
4-38 Disassembly and Reassembly Removable 5.25-inch M edia Devices A variet y of SCSI 5.25 -inch removable media d evices (i.e., tape backup, et c.) can be installed in the four half-hei ght media bays (Figure 4-38). Th e media devices should be installed in the first available media b ay from the top (slot 1).
Disassembly and Reassembly 4-39 Installation 1. Prepare your system for up grade. See Preparing Y our System for Disassembly and Reassembly described ear lier in this chapter. 2. Remove the side cover. 3. Remove the two screws fixing the dumm y cover.
4-40 Disassembly and Reassembly 6. Push the 5.25-inch device to the device ba y carefull y. NOTE: Make s ure the ca bles are n ot caught while t he 5.25- inch de vice is pushe d into the s lot. 7. Secure the device using the screws removed in step 3. See Fi gure 4-41.
Disassembly and Reassembly 4-41 PCI Boards The server contains six slots into which PCI boards can be inserted. See Figure 4-42. IMPORTANT: PCI boards are easil y affected b y static el ectricit y.
4-42 Disassembly and Reassembly Installation IMPORTANT: ! For ease of installat ion, r emove th e extern al SC SI cab le whe n installing t he ful l-lengt h PCI car d. ! 3.3V or u niversal PCI bo ards can b e ins talled in PC I board s lots #1 to #4. ! 5V or un ivers al PCI b oards can be ins talled in PCI boar d slots # 5 and #6.
Disassembly and Reassembly 4-43 1. Prepare your system for up grade. See Preparing Y our System for Disassembly and Reassembly described ear lier in this chapter. 2. Remove the left-hand side cover. 3. Define the slot in which a board is installed and remove the conn ector cap of the slot.
4-44 Disassembly and Reassembly Figure 4-44. Installing a PCI Board 8. Secure the board with a screw removed in Step 4. 9. Reinstall the removed components.
Disassembly and Reassembly 4-45 RAID Con troller Board The functions of a disk arra y controller are described in the following t able. Functions of a Disk Array Controller Function Description Level Support RAID lev els RAID0, RAID1, R AID5, and RAID0+1.
4-46 Disassembly and Reassembly ! Set "PCI SLOT n ROM (n: slot number)," a parameter of the slot in which a hard disk is installed, to "Enable" in "PCI Configuration" on the Advanced menu of the BI O S utility SETUP.
Disassembly and Reassembly 4-47 Using Internal D i sks in Disk Array C onfig uration For the installation of the RAID controller board, see "PC I Board" and the manual that come s with the RA ID controlle r board.
4-48 Disassembly and Reassembly Diskette Drive and Car rier Assembly Your server s ystem contains a 3.5-inch diskette drive housed in a c arrier located inside the front of the server chassis. To remove the diskette drive and carri er assembl y, perform the following procedures: 1.
Disassembly and Reassembly 4-49 7. Remove the driv e from th e carrier. A B C A Diskette driv e B Carrier C Screws (4) Figure 4-47. Removing the Diskette Drive from the Carr ier Assembly 8. Insta ll the replaceme nt diskette drive into the carr ier and secure it with the four screws removed in Step 6.
4-50 Disassembly and Reassembly Front Bezel and Front Bezel Hing e (Tower- Based System) Your server s ystem contains a front bezel that covers the front o f the chassis. The bezel is sec ured to the front of the chassis by meta l pins located at the top and bottom of a front bezel hinge.
Disassembly and Reassembly 4-51 5. Remove the four screws securin g the bezel hinge to the chassis and remove the hinge. See Figure 4-49. A B A Screws (4) B Bezel hinge Figure 4-49. Removing the Front Bezel Hinge 6. Install the replacement bezel hinge using the four screws removed in Step 5.
4-52 Disassembly and Reassembly 3. Remove the front panel (A) b y releasing its locking lever (B) and then sliding the front panel up to disengage its hooks from the chassis. The locking lever i s located at the back o f the front panel and is releas ed b y pushing the lever towards the right so that it clears the notc h in its locking slot.
Disassembly and Reassembly 4-53 Hot-Swap HDD Bay This procedure describes how to remov e the Hot-Swap SCSI Hard Disk Drive (HDD) Bay that is housed in the front of your system. ! WA RN IN G Before do ing th ese proce dures, m ak e sure that your s ystem is power ed of f and unp lug all AC po wer cords.
4-54 Disassembly and Reassembly A A A A Figure 4-51. Removi ng the HDD Bay Hot-Swap SCSI Backplane This procedure describes how to remov e the hot-swap SCSI backplane that is attached to the back of the hot-swap HD D ba y. ! WA RN IN G Before do ing th ese proce dures, m ak e sure that your s ystem is power ed of f and unp lug all AC po wer cords .
Disassembly and Reassembly 4-55 A B C A Hot-swap HDD bay B Hot-swap SC SI backplan e C Screws (8) Figure 4-52. Removing the SCSI Backplane B racket 4. Carefull y pull the SCSI backplane straight out from the HDD ba y and place the backplan e on an antistatic wr apper.
4-56 Disassembly and Reassembly Replacing the Rear Cooling Fan 1. Observe the safet y and ESD precautions listed under General Information and Static Precautions at the beginning of this chapter. 2. Open the front b ezel of your s ystem's cabinet.
Disassembly and Reassembly 4-57 10. To release the fan from the f an housing, pull the fan housing tab (Figure 4-54, A) towards you until the tab clears the edge of the fan. Swivel the fan towards the front of the serv er and remove it from the fan housing.
4-58 Disassembly and Reassembly System Board To remove the s ystem board all the processor(s), DIMMs, and PCI option boards (if installed) on the board must be removed and all system board cable connectors tagged and unplugged. ! CA UTI ON The s ystem board c an be extrem ely sensi tive t o ESD and always req uires c aref ul hand ling.
Disassembly and Reassembly 4-59 11. Tag and remove an y PCI option boards installed on the system board. See PCI Boards earlier in this chapter. Save th e PCI option boards for reassembl y. Note: T he PCI opt ion boar ds m ust be reinsta lled in the same sl o ts when you reassemble the s ystem.
4-60 Disassembly and Reassembly 16. Install the two retention modules to the system board using the screws removed in Step 15. 17. Install the replac ement system board into the se rver securi ng it with the eight screws removed in Step 13. 18. Connect all the power, signal, and fan cable connectors to their mating connectors on the s ystem board.
Disassembly and Reassembly 4-61 8. Remove any power supply installed in the system following procedures described ear lier it this chapter. 9. Figure 4-56, A shows the location of the power suppl y back board.
4-62 Disassembly and Reassembly Tower Feet Your tower system has four sta bilizer feet locate d on the bottom of the chassis. To remove the sta bilizer feet you must have the chassis positioned on its side with its stabilizer feet overhangin g the edge of a table or workb ench.
Disassembly and Reassembly 4-63 I/O Shield To remove the I/O, perform the followin g procedures: 1. Observe the safet y and ESD precautions listed under General Information and Static Precautions at the beginning of this chapter. 2. Open the front bezel of your s ystem.
4-64 Disassembly and Reassembly 10. Snap the replac ement I/O shield into pl ace in t he rear pan el. 11. Install the system board following procedures previously described in this chapter. 12. Install the left-hand side access panel. LED/Switch Assembly Your server s ystem contains a front panel that houses the LED/switch assembl y.
Disassembly and Reassembly 4-65 5. Tag and disconnect the LED/Switch Assembl y cable (Figure 4-59, B) from its mating connector on the system board. See Figure 4-59, C.
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5 Problem Solving ! Problem Solving ! Static Precautions ! Resetting the Server ! Forced Shutdown ! Troubleshooting Checklists ! Diagnostic Procedures ! Specific Problems and Corrective Actions ! Prob.
5-2 Pro blem Solv ing Problem Solving This chapter helps you identify and solve problems that ma y occur during system installation or while using your system. The first section of this chapter tells you how to reset your s ystem in the event of problems.
Prob lem Solv ing 5-3 Resetting the Server There are two w a ys to reset the serv er. IMPORT ANT : Resetting the s erver cl ears th e DIMM m emor y and the data in process . T o reset the ser ver when it is not fro zen, m ake sure that n o proces sing is in p rogress.
5-4 Pro blem Solv ing Forced Shutdown Use this function when an OS command does not shut down the server, the POW ER switch does not turn off the server, or resetting does not work. Press and hold the POWER switch on the server for at least four se conds.
Prob lem Solv ing 5-5 Troubleshooting Checklists The following subsections provide troubleshooting checklists for problems that occur at initial system startup, when you run new application software, and after the s ystem hardware and softwar e have been running correctly.
5-6 Pro blem Solv ing If the above items are all corr ect, but the problem reoccurs, r efer to Additional Troubleshooting Procedures in this chapter . Running New Appli cati on Software Problems that occur when you run new application software are usuall y related to the software.
Prob lem Solv ing 5-7 After System Has Been Running Correctl y Problems that occur after the s ystem hardware and software hav e been running correctly often indicate equipment failure. However, man y situations that are eas y to correct can also caus e such problems.
5-8 Pro blem Solv ing Diagnostic Procedure s This section provides a more detailed approach to diagnosing and id entifying problems and then locatin g their sources. Error C hecking Each time you tur n on the system, POST (Power -On-Self-Test) runs automatically and checks the s ystem board, processors, memory board, keyboard, and mouse.
Prob lem Solv ing 5-9 Monitori ng POST Each time you tur n on the system, the Power- On Self-Test (POST) runs automatica l ly and checks the s ystem board, processors, memor y board, keyboard, and mouse. During the memory test, POST displays the amount of memory that it is able to access and test.
5-10 Pro blem Solv ing Verifying Pr oper O peration of K ey System Indicators As POST determines the s y st em configuration, it tests for the presen ce of eac h mass storage device installed in the system. As each device is che cked, its activity indicator should turn on briefly.
Problem Solving 5-11 Specific Problems and Corrective Actions This section provides possible solutions for the following specific problems: ! Power LED does not light ! No beep or incorr ect beep patt.
5-12 Pro blem Solv ing No Characters Appear on Screen Check the foll owing: ! Is the keyboard wor kin g? Check to see if the Num Lock light is functioning.
Problem Solving 5-13 Diskette Drive Activi ty LED Does Not Light Check the foll owing: ! Is the diskette drive properl y configured? ! Is the CDROM/Floppy Disk Drive combo properly installed in the flex ba y? Use BIOS Setup to make sure that the diskette d rive controller is se t to Enabled.
5-14 Pro blem Solv ing Bootable CD-ROM Is Not Detected Check the foll owing: ! Is the BIOS set to allow the CD-ROM to be the first bootable device? Check your BIOS Setup (F2) configuration. Problems with the Network Diagnostics pass, but the connection fails: ! Make sure the network cable is se curel y attached.
Problem Solving 5-15 Error Messages This section describes the POST error codes and mess ages. POST Erro r Codes and Messages Whenever a recov erable er ror occurs durin g POST, B IOS displays a message on the video display screen and causes the speaker to b eep as the message appears.
5-16 Pro blem Solv ing Table 5-1. POST Error Codes and Messages (continued) On-screen error message Action 10E External Ca che Failure Insta ll the CPU (pr ocessor) c orrectly.
Problem Solving 5-17 Table 5-1. POST Error Codes and Messages (continued) On-screen error message Action 8110 Proce ssor 1 Internal err or (IERR) 8111 Proce ssor 2 Internal err or (IERR) 8120 Proce ssor 1 Thermal T rip error 8121 Proce ssor 2 Thermal T rip error Securely ins tall the processor.
5-18 Pro blem Solv ing Table 5-1. POST Error Codes and Messages (continued) On-screen err or message Action 8192 L2 C ache siz e mismatch 8193 CP UID, Processor Stepp ing are different Install proc essors under the s ame specific ation. 8194 CP UID, Processor Family are different 8195 Front Si de Bus Speed mism atch .
Problem Solving 5-19 Table 5-1. POST Error Codes and Messages (continued) On-screen err or message Action 84FF System Event Log Full Clear the event log by using the BIOS SETU P utility. If t he error is not el iminated, cont act your service r epresentative to replace the system board .
5-20 Pro blem Solv ing POST Erro r Code H ardware R eferen ces Figure 5-3 shows the location of specific compon ents referenced in the POST Erro r Codes and Messages table. ! Fan modules ! Processor/Memory NOTE : Failed CPU or m em or y boards can be also identif ie d with the SET UP utilit y .
Problem Solving 5-21 Beep Codes If an error occurs du ring the POST, the server beeps, indicating the t ype of error. Each number indicates the number of short beeps, and a h yphen indicates a pause.
5-22 Pro blem Solv ing How to Identify BIOS and BMC Revision Le vels To identify your system's current BIOS and BMC revision levels, perform the followin g procedure: 1. Power-on or reboot the system. “Press <F2 > to enter SETUP” displays.
Problem Solving 5-23 Lamps The following describes lamps on the server and thei r indications. See Chapter 2 for each location. LAN ACCESS Lamp ( 1 ) The LAN ACCESS lamp is lit g reen when the serve r is connected to LAN. The lamp blinks while the server i s access ed through the LAN (for pack et transmission).
5-24 Pro blem Solv ing ST A TUS lamp indication Description Pr ocedure On (green) The server i s operating normally . – Flashing (green) • The server i s operating with the memory , CPU, or power sup p ly unit in degraded st at e. • A single-bit memory error has often occurre d.
Problem Solving 5-25 POWER/SLEEP Lamp ( ) The green POWER/SLEEP lamp lig hts to indicate normal operation while the serv er is powered. When the s erver is off- powered, the POWER/SL EEP lamp sta ys unlit. The POWER/SLEEP lamp indicates that the server is running in the power-saving mode (sleep mode).
5-26 Pro blem Solv ing Hard Disk Dri ve Lamp The disk lamp on the 3.5-inch hard disk drive ba y has different meanings depending on the display status. See Figure 5-4. Figure 5-4. Hard Disk Drive Lamp Locati on ! Li gh t i n g g r e en Indicates that the power is supplied to the hard disk.
Problem Solving 5-27 Power Supply Lamps The power suppl y on the rear of the server has three lamps. See Figure 5-5. Figure 5-5. Power Supply Lamp Loca tions NOTE: T he server equipped with an optional power unit can continue the operation with the normal power un it i f the other pow er unit is defected (redundant fun ction).
5-28 Pro blem Solv ing LAN Connector Lamps Each of the two LAN connectors on the rear panel h as two lamps as follows. ! LINK/ACT lamp The link/ACT lamp indicates the state of each network port norm ally equipped with the server.
6 Illustrated Parts Breakdown ! Exploded View ! Field Replaceable Units.
6-2 Illustrated Parts Breakdown This chapter provides an exploded view and p arts lists for the major assemblies of your server. Exploded View 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 .
Illustrated Parts Breakdo w n 6-3 Field Replaceable Uni ts Reference Number Description Part Number 1 5.25-inch Peripheral D evices. R efer to subsection “T ape Drives” in this chapter. 2 CDROM Drive Mitsumi FX-4840 W 856-850222-001A 3 Sub Bezel (Front Pane l) 6896470000 4 3.
6-4 Illustrated Parts Breakdown Reference Number Description Part Number 22 M aster Key 23 SCSI Back plane 856-122575-001 24 DLT Bracket Kit 25 104-Key Keyboard 26 Intrus ion Sw itch Assembly (incl ud.
Illustrated Parts Breakdo w n 6-5 Pentium Processors Replaceabl e Par ts Description Part Number Intel™ Xeon™ 2.0GHz/533/ 512 Processor 6884920000 Intel™ Xeon™ 2.4GHz/533/ 512 Processor 6884940000 Intel™ Xeon™ 2.66GHz/533 /512 Processor 6889470000 Intel™ Xeon™ 2.
6-6 Illustrated Parts Breakdown RAID Control l ers and Cache Replaceabl e Par ts Description Part Number RAID LSI 518, 2-C H 320-2 1L19 6893990000 RAID LSI 520, 1-C H 320-1 1L19 6894000000 Cache, 128 .
Illustrated Parts Breakdo w n 6-7 Cable List Description Part Number 120Lg Cabl e Kit (not a FRU, Only for order) 6896590000 LED/S W Cabl e (included in 6896 590000) 6896490000 HDD Activity Cable ( in.
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A Specifications ! System Specifications.
A-2 Specifications System Specification s Item NEC Express58 00/120Lg Ty p e Intel Xeon proc essor (1.8GHz/512KB) Intel X eon processor (2.66GHz/512KB) Number of processors 1 CPU Ma xi m um 2 Chips et E7501 S tandard 256 M B (128 MB × 2) 512 MB (256 M B × 2) Max imum 4GB (The stan dard DIMM must b e replaced.
B Installing and Configuring Windows ® 2000 ! Overvi ew ! Device Drivers ! Installation Assumption ! Installation Preparation ! Installing Microsoft Windows ® 2000 Operating Sy stem ! Installing LAN.
B-2 Inst alling and Configuring Windows 2000 Overview This appendix contains supplemental instructions needed to install and configure hardware and software used with the Microsoft W indows ® 2000 Operating S y st em. This information is intended to supplement the more detailed procedural documents available from Mic rosoft.
Installing and Configuring Windows 2000 B-3 Installation Assumption The installation and c onfi guration instruc tions in this chapter assume the following: ! You have properl y completed the hardware installation. ! You have run the BIOS Setup Utility to check s yste m configuration.
B-4 Inst alling and Configuring Windows 2000 Installation Preparation Before starting the installation procedure, you need to obtain certain information for use during the installation. Table B-2 lists the information you need in advance for the installation.
Installing and Configuring Windows 2000 B-5 Installing Microsoft Windo ws ® 2000 Operating System Use the following procedure to set up and per form a clean Wi ndows 2000 Operating Sy st em installation on y our server. Before performing the installation, read the “I nstallation Notes” in the following section.
B-6 Inst alling and Configuring Windows 2000 3. When the following message is displayed, select Other , then pr ess Enter . “Setup could not determine the t ype of computer you have, or you have chosen to manuall y specify the computer type.
Installing and Configuring Windows 2000 B-7 Installing LAN Adapters The following section includes special dr iver installation instr uctions for the Intel PRO/100+ LAN adapter used in your system.
B-8 Inst alling and Configuring Windows 2000 5. Select the “Link Configuration” tab and set the “Auto Ne gotiation” value to DISABLE. Also set the “Forced Speed and Dupl ex” val ue accordin g to the value specified for your HUB.
C IRQ and I/O Port Addresses ! Interrupt Requests ! PIRQ and PCI Device.
C-2 IRQ and I/O Port Addresses Inte rr upt R equ ests The factory-se t interrupt requests (I R Qs) are listed below. IRQ Peripheral Device (Controller) IRQ Peripheral Device (Controller) 0 System t im.
IRQ and I/O Port Addresses C-3 I/O Por t Address The factor y-set I/O port addresses for t he server are assigned as follows: Address Chip in Use 00 - 1F 8-bit DMA contro l register 20 - 21 Master 825.
C-4 IRQ and I/O Port Addresses Address Chip in Use C00 PCI IRQ mapp ing index register C01 PCI IRQ mapp ing data register C14 PCI error status register C49 Address & status contr ol C4A R ise time.
D Internal Cabling Diagrams ! Standard Configuration ! Disk Array Configuration of Built-in Hard Disks ! Installing a SCSI File Device.
D-2 I nternal Cabling Di agrams Standard Configura tion The figure below shows an example of the connections in the standard con figuration. Option CD-ROM Option 5.
Interna l Cabling Diagr ams D-3 Disk Array Configur ation of Built-in Hard Disks For the disk array confi guration of hard disks installed in the built-in 3.
D-4 I nternal Cabling Di agrams Installing a SCSI File Device With the standard configuration, you need an optional SCSI controller and internal SCSI cable to install a file device. Set SCSI IDs as shown in the a bov e figure. Set the terminating r esistor (Enabled/Disabled) for the l ast-connected device in the SCS I ch ain.
Interna l Cabling Diagr ams D-5 The following figure shows an ex ample of onboard SCSI connection for SCS I file devices. In the figure above, the stand ard hard disk drive bay is connected with an optional RAID controller.
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Glossa ry 1 Glossary A AC (Altern ating Current) The type of c urrent availabl e in wall outl ets. All com puters must convert alternat ing current to direct cu rrent to oper ate. See also DC. ACPI (Advanced Con figuratio n and Power Inter face) Provides the programm ing standard for power manag ement features.
2 Glossary bit Derived from BInary dig iT , a bit is the smalle st unit of inform ation a compute r handles. See also byte. BMC (Baseboard Ma nagement Contro ller) Contains all of the server m anagement func tions. One major func tion of the BMC is t o monitor system m ana gement ev ents and log the ir occurrence in the System Ev ent Log (SEL).
Glossa ry 3 CPU (Central Pro cessing Uni t) See m i croproce ssor. CRT (Cathode- Ray Tube) The ty pe of video display used in monito rs for desktop computers. D DC (Direct Current ) The ty pe of current av ailable in the rechargeable b attery packs us ed in portable com puters.
4 Glossary EM P The Em ergency Management Port (E MP) provid es an interfa ce to the console m anager. This int erface al lows rem ote server m anagement via a m odem or direct conn ection.
Glossa ry 5 H hard disk drive See disk driv e. hardw are The physic al parts of y our compute r, including th e keyboard, m onitor, disk driv es, cables, and circui t cards. hot sw ap A method used to insert or rem ove SCSI disk drives into or from an operating bus.
6 Glossary LED (Light- Emitting D iode) A sm all electron ic device tha t glows w hen curren t flows thro ugh it. LPT1 or LPT2 The nam e you can as sign a pa rallel po rt to specify its address. S ee also parallel por t. LVD Super-fast U ltra 2 SCSI Low Voltage Diffe rential (LVD) Pa rallel SCSI Interfac e .
Glossa ry 7 P parallel port The connec tor on the back of your computer that allows the tran sfer of data b etween the computer an d a parallel d evice, such as a par allel printer. partition The proces s of dividing the storage space on a hard disk into separate are as so that the operating system treat s them as separa te disk drives.
8 Glossary ROM (Read-O nly Memory) A ty pe of memory dev i ce that usua lly is used to s t ore syst em BIOS code. This code cannot be alte red and is not lost wh en the com puter is powered off. See also BIOS, EPROM, and f lash EPROM. RS-232C port An industry st andard serial po rt.
Glossa ry 9 SVG A (Super VGA ) A type of video d i splay system that provides v ery high-resolu tion text and graphics on an alog color m onitors. system bo ard The m ain circuit b oard in your com puter. It contains m ost of the conn ectors and ports.
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Equipment Log 1 Equipment Log Use this equipment log form to record pertinent inform ation about your s ystem. You will need some of this information to run the System Setup Utility.
2 Equipment Log Component Manufa c turer Name & Model Serial Numb er (if available) Date Installed Server System Board Processor 1 Processor 2 DIMM Slot 1A DIMM Slot 1B DIMM Slot 2A DIMM Slot 2B M.
Index-1 A Access lamp, 5- 25 Advance m enu configuring in setup, 3- 7 B Batter y installing , 4-11 BI OS using the setup uti l ity, 3- 3 C CD-ROM, A-2 Configuring system board j umpers, 3- 22 Configur.
Index-2 Power consum ption, A-2 POWER lamp, 1- 4, 5 -25 Power on/off switch does no t turn off AC power, 4- 3 Power supply, A-2 POWER switch, 5- 4 Problem s application so ftware, 5-13 beep code, 5- 1.
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Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté NEC 120Lg c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du NEC 120Lg - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation NEC 120Lg, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le NEC 120Lg va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le NEC 120Lg, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du NEC 120Lg.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le NEC 120Lg. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei NEC 120Lg ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
