NEC POWERMATE ES Series Скачать руководство пользователя

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System Boards 4-13

I/O Address Map

Address (Hex)

I/O Device Name

0000-000F

DMA controller 1 (channel 0-3)

0020-0021

Programmable interrupt controller 1

0040-0043

Counter/timer 1

0060

PC/AT Keyboard controller

0061

System speaker

0064

PC/AT Keyboard controller

0070-0071

System CMOS/real time clock

0081-0083

DMA controller

00A0-00A1

Programmable interrupt controller 2

00C0-00DF

DMA controller 2

00F0-00FF

Numeric data processor

0170-0177

Secondary IDE channel/Bus Master IDE controller

01F0-01F7

Primary IDE channel/Bus Master IDE controller

0200-0207

Gameport/Joystick

0376

Secondary IDE channel/Bus Master IDE controller

0378

ECP printer port (LPT 1)

0380-038B

Intel 810e chipset graphics driver

03C0-03DF

Intel 810e chipset graphics driver

03F0-03F3

Standard floppy disk controller

03F4-03F5

Standard floppy disk controller

03F6

Intel 82801AA Bus Master IDE controller

03F6

Primary IDE controller

03F7

Standard floppy disk controller

03F8-03FF

Communications port COM1

0540-0545

Intel 82801AA SMBus controller

0788

ECP printer port (LPT 1)

0CF8-0CFF

PCI bus

B000-BFFF

Intel 82801AA PCI Bridge

BC00-BC7F

3COM 3C920 integrated fast Ethernet controller

D400-D41F

Intel 82801AA USB universal host controller

D400-D83F

Intel 82801AA audio controller

DCOD-DCFF

Intel 82801AA AC’97 audio controller

FF00-FF07

Primary IDE controller

Содержание POWERMATE ES Series

Страница 1: ...The Space Saving Office PC POWERMATE ES SLIMLINE SERIES S E R V I C E A N D R E F E R E N C E M A N U A L...

Страница 2: ...product However actual performance of each such product is dependent upon factors such as system configuration customer data and operator control Since implementation by customers of each product may...

Страница 3: ...ser Board 1 11 Diskette Drive 1 11 Hard Drive 1 11 Power Supply 1 11 Keyboard 1 11 Mouse 1 12 AGP Graphics 1 12 CD ROM Drive 1 12 DVD ROM Drive 1 12 Speaker Set 1 12 Onboard LAN 1 12 Network Board 1 1...

Страница 4: ...DIMM Module Removal 3 6 Processor Removal 3 8 Expansion Board Removal 3 10 5 1 4 Inch Device Removal 3 12 Diskette Drive Removal 3 13 Hard Drive Removal 3 15 CMOS Battery Removal 3 17 LED Board Assemb...

Страница 5: ...4 CD ROM Drive Problems 7 4 Speaker Problems 7 5 Diagnostics 7 6 8 NECC Information Services Service Telephone Numbers 8 2 Technical Support 8 2 NECC Website 8 2 NECC FTP Site 8 3 Email Fax Technical...

Страница 6: ...e 3 7 Removing the Fan Heat Sink and Processor 3 8 Removing the Riser Board Bracket 3 10 Unplugging the 5 1 4 Inch Device Cables 3 12 Releasing the 5 1 4 Inch Device 3 12 Removing the Diskette Drive 3...

Страница 7: ...16 Advanced Menu Hardware Monitor Setup 2 17 Security Menu Items 2 17 Exit Menu Items 2 18 PowerMate ES SlimLine Series Disassembly Sequence 3 2 System Board Components 4 8 Parallel Port Addresses 4 1...

Страница 8: ...and system utilities including the BIOS FLASH Utility and PowerMate Product Recovery Program Section 3 Disasssembly and Reassembly provides system disassembly and reassembly procedures Each procedure...

Страница 9: ...ory Module DIP dual in line package DMA direct memory access DMAC DMA controller DMI Desktop Management Interface DOS disk operating system DPI dots per inch DRAM dynamic RAM DVD digital versatile dis...

Страница 10: ...loop POST Power On Self Test p p peak to peak PPI programmable peripheral interface PROM programmable ROM PS 2 personal system 2 QFP quad flat pack R read RAM random access memory RAMDAC RAM digital t...

Страница 11: ...ct current VDT video display terminal VESA video electronics standards association VFC VESA compliant feature connector VGA Video Graphics Array VHF very high frequency VLSI very large scale integrati...

Страница 12: ...1 System Overview Configurations Features Components...

Страница 13: ...from 10 gigabytes GB to 30 GB or higher All drives feature Ultra DMA 66 and Self Monitoring Analysis and Reporting Technology SMART System memory is provided in 64 megabyte MB minimum 128 MB or 256 MB...

Страница 14: ...40X or higher CD ROM drive DVD ROM Drive 8X or higher DVD ROM Riser Board Supports up to three PCI expansion boards LAN Board Intel Ethernet PRO 100 WOL PCI Accton Ethernet TX4 with or without WOL PC...

Страница 15: ...Headphone Jack E Diskette Drive L Microphone Jack F Diskette Drive Activity Lamp M USB Port G Power Sleep Lamp PowerMate ES SlimLine Series Desktop Front Features A Diskette Drive H Microphone Jack B...

Страница 16: ...tion Hard drive lamp when blinking indicates that the hard drive is active A blinking lamp indicates that the hard drive is reading or writing data CD ROM drive use to load and start programs from a c...

Страница 17: ...Parallel Port N Keyboard Mouse Anti theft Bracket G USB Port O Anti theft Ring H LAN Port P Expansion Slots 3 PowerMate ES SlimLine Series Desktop Rear Features A AC Power Connector I Line Out Jack B...

Страница 18: ...r attach a video graphics array VGA compatible monitor NEC MultiSync monitor or other VGA compatible monitor with a 15 pin connector to this connector Line in jack use this jack to connect a stereo au...

Страница 19: ...plorer Internet Explorer provides a top notch browser with preloaded links for easy access to the world wide web Also use Internet Explorer to access one of the many new browser based utilities Norton...

Страница 20: ...oard User access to the BIOS Setup Utility is limited when a supervisor password is set The supervisor password allows full access to the system and the BIOS See Section 2 System Configuration for fur...

Страница 21: ...ontroller Hub GMCH 82801 I O Controller Hub ICH integrated Audio Codec 97 Controller 82802 Firmware Hub FWH and Dynamic Video Memory Technology DVMT External connectors on the system board include one...

Страница 22: ...66 models A two connector Ultra DMA 66 cable connects the hard drive to the primary IDE channel on the system board The drive is connected as the master device on the primary channel Hard drive jumper...

Страница 23: ...as well as standard CDs The CD ROM drive also plays audio CDs CD ROM jumper settings are included in Section 2 System Configuration Specifications for the CD ROM drive are given in Section 9 System S...

Страница 24: ...System Configuration Interrupt Requests Jumper Settings BIOS Setup Utility FLASH Utility Online Documentation Product Recovery Program PowerMate Driver CD Intel Processor Serial Number Control Utilit...

Страница 25: ...The system has 16 IRQs IRQ 0 through 15 assigned to different devices for example printer keyboard mouse Initial IRQ settings are assigned at the factory with settings dependent on the installed devic...

Страница 26: ...Master IDE Controller IRQ settings may vary depending on system configuration Parallel Port Interrupts The parallel port I O interrupts are given in the following table The table lists all of the pos...

Страница 27: ...uration of the system for particular system requirements Some conditions that might require changing jumper settings include the following situations Adding a sound board to the system Restoring the C...

Страница 28: ...System Board Jumper Locations A Keyboard Wakeup JKBV1 D CPU Type J23 B Onboard Audio JP3 E Save to RAM STR JP4 C BIOS Recovery J4 F Clear CMOS JBAT1 To prevent damage to the system board do not set j...

Страница 29: ...2 6 System Configuration System Board Jumper Settings...

Страница 30: ...Hard Drive Jumper Settings The factory settings for the jumpers on the Quantum EIDE hard drive are shown in the following table The settings are for a single hard drive installed in the system as a ma...

Страница 31: ...llowing message at the bottom of the NEC startup screen F2 for Setup You have about five seconds to press F2 before the system boot continues 3 The Setup Main Menu appears How to Use Setup The Setup U...

Страница 32: ...enu displays the help text for the currently selected Setup option It updates as the cursor moves to each new field Pressing F1 on any menu brings up the General Help window that describes the legend...

Страница 33: ...if a device is installed If you install a hard drive that does not feature auto IDE type detection or your IDE hard drive was formatted on another system with parameters different from those reported...

Страница 34: ...rd drive parameters CPU Speed xxx MHz Not selectable display only Front Side Bus Speed xxx MHz Not selectable display only Memory Size xxx MHz Not selectable display only BIOS Version A6303P2 V1 0 Adv...

Страница 35: ...ed IDE 0 IDE 1 IDE 2 IDE 3 LS 120 Zip ATAPI Zip CDROM SCSI Network Sets the diskette drive as the first boot device 2nd Boot Device IDE 0 Sets the second boot device 3rd Boot Device CD ROM Sets the th...

Страница 36: ...or USB devices USB Keyboard Legacy Support Enabled Disabled Select Enabled to enable the legacy keyboard functions Memory Hole Enabled Disabled Select Enabled to reserve a space in the memory between...

Страница 37: ...end On Off Suspend sets the power switch for Suspend Sleep mode With power on pressing the switch once places the system in sleep mode Pressing and holding the switch in for 4 seconds turns power off...

Страница 38: ...he BIOS to initialize any add on boards Windows NT only Select Yes to allow the operating system to initialize any add on boards Windows 98 and Windows 2000 Clear NVRam No Yes Select No to prohibit cl...

Страница 39: ...he Infra red Duplex mode to function in one direction at a time Half Duplex or both directions Full Duplex Onboard Parallel Port 378 Auto Disabled 278 3BC Select Auto to allow the BIOS to automaticall...

Страница 40: ...ity in the legend bar on the Main Menu screen Other Security Menu options are available by selecting submenus Use the arrow keys to select one of the Security Menu options and press Enter to select a...

Страница 41: ...arting the BIOS update we recommend that you first contact NECC for assistance see Section 8 for NECC contacts Update the Flash ROM with a BIOS flash diskette The diskette contains the latest version...

Страница 42: ...ing Devices Provides safety precautions instructions on removing and replacing system components including stabilizers covers 3 1 2 inch and 5 1 4 inch devices the system board and optional features a...

Страница 43: ...urn on system power 3 Insert the Product Recovery CD into the CD ROM drive 4 When a warning message appears read it carefully Press Enter to continue or Esc to exit the Recovery program Using the Reco...

Страница 44: ...tions are only for use by an advanced PC user or qualified technician If you are not completely sure that you want to continue choose the Cancel option by pressing Esc or by pressing 3 on your numeric...

Страница 45: ...tab and in some systems a Tools tab Software Restore or Removal Select the Software tab on the main menu to restore or remove specific applications Click on one or more programs to select them Smart...

Страница 46: ...he processor serial number at any time However enabling the serial number requires restarting the system The following information describes system requirements installation procedures processor seria...

Страница 47: ...or serial number Can a website read my serial number without my knowledge No generally not Websites cannot read serial numbers unless you allow them to download a program which can read the processor...

Страница 48: ...day technical support please visit the Intel support website at http support intel com Email support intel com In the United States call 800 628 8686 from 5 00 a m to 5 00 p m Pacific Standard Time F...

Страница 49: ...Disassembly and Reassembly Slimtower Stabilizer System Cover DIMM Module Processor Expansion Board 5 1 4 Inch Device Diskette Drive Hard Drive CMOS Battery LED Board Assembly Power Supply System Boar...

Страница 50: ...CMOS battery 3 17 10 LED board assembly 3 19 11 Riser board 3 19 12 Power supply 3 20 13 System board 3 21 When disassembling the system follow these general rules Turn off the system and unplug the A...

Страница 51: ...de on a table with the stabilizers over the edge of the table 5 Remove the two screws attaching the stabilizers to the system and remove the stabilizers from the system Removing the Slimtower Stabiliz...

Страница 52: ...nti theft bracket remove the screw fastening the bracket to the chassis The screw is accessible from inside the chassis after the cover is removed 4 If the system is configured as a slimtower remove t...

Страница 53: ...e tabs on the sides of the cover with the corresponding slots on the bottom edge of the chassis 4 Firmly press the cover against the chassis and slide the cover towards the rear of the chassis until i...

Страница 54: ...val earlier in this section 2 Locate the DIMM module sockets on the system board Locating the DIMM Module and Processor Sockets A DIMM Module Sockets 1 and 2 C Fan Connector under CD ROM drive B Proce...

Страница 55: ...art on the chassis 4 Align the notches on the new DIMM with the keys in an empty DIMM socket see the following figure Installing a DIMM Module A Plastic Clips B Notches 5 Press the DIMM module firmly...

Страница 56: ...ystem was just running the processor and heat sink are hot To avoid a burn let the components cool before continuing 5 Carefully cut the cable tie retaining the fan cable and front panel cables 6 Tag...

Страница 57: ...k lever down and press it in towards the socket until it locks in place Using the wrong heatsink or no heatsink can damage the processor or system board Ensure that the replacement processor has the c...

Страница 58: ...stem board As the bracket fits tightly you might need to rock the bracket slightly to release it from the chassis 3 Remove the screw securing the expansion board to the riser board bracket 4 Carefully...

Страница 59: ...cket and insert the board into the expansion slot on the riser board 7 Firmly press the expansion board into its connector on the riser board 8 Secure the expansion board in place on the riser board b...

Страница 60: ...wer Cable D Device Bracket Lock 3 Tag and unplug the signal and power cables connected to the device If the device is a CD ROM or DVD ROM tag and unplug the audio cable from connector CDIN 4 Raise up...

Страница 61: ...o use the short power cable to connect to the device The long power cord must be used for the hard drive 6 Lower the device bracket all the way down until it locks in place on the chassis As you lower...

Страница 62: ...ening the drive to the bracket and set the drive aside Install a replacement diskette drive as follows 1 Attach the replacement diskette drive to the bracket with the two previously removed screws 2 T...

Страница 63: ...stem cover see System Cover Removal earlier in this section 2 While pressing the device bracket lock on the side of the bracket raise the bracket up enough to unplug the CD ROM drive cables 3 Raise th...

Страница 64: ...1 4 inch accessible device 4 Align the three shoulder screws with their respective shoulder screw slots and lower the hard drive into the chassis Check that the screws are in the slots 5 Slide the har...

Страница 65: ...rd the system configuration settings before removing the battery Use that information to restore the system after replacing the battery 2 Remove the system cover see System Cover Removal earlier in th...

Страница 66: ...water and causes spontaneous combustion on contact Discard used batteries according to the manufacturer s instructions 7 With the positive side facing up press the new battery into the socket Be sure...

Страница 67: ...8 Carefully pull the LED board and cable out of the front of the chassis 9 Install a replacement LED board and cable assembly by reversing steps 1 through 9 above Riser Board Removal Remove the riser...

Страница 68: ...side of the bracket raise the bracket up enough to unplug the CD ROM drive cables and raise the bracket to its vertical position 6 Remove the hard drive from its bay see Hard Drive Removal 7 Tag and u...

Страница 69: ...al 4 Lift the 5 1 4 inch device bracket up enough to unplug the CD ROM drive cables then continue lifting the bracket to its vertical position see 5 1 4 Inch Device Removal earlier in this section 5 T...

Страница 70: ...board and back panel into the rear of the chassis Lift the board slightly to clear the two standoffs Align the standoffs with their corresponding holes in the board Ensure that the standoffs are inse...

Страница 71: ...4 System Boards System Board Riser Board...

Страница 72: ...The following paragraphs show the system board external cable connector locations internal board connector locations jumper locations and upgrade sockets Included are procedures for setting jumpers o...

Страница 73: ...Port D Keyboard Port I VGA Port E Mouse Port Internal Connectors Sockets and Jumpers Locations of the jumpers connectors and sockets on the system board are shown in the following figures System Board...

Страница 74: ...er JKBV1 Save to RAM STR jumper JP4 Onboard Audio jumper JP5 CPU Type jumper J23 The preceding figure System Board Jumper Locations shows the locations of the jumpers on the system board To reset the...

Страница 75: ...ection 3 4 Remove the diskette drive to access the jumpers see Diskette Drive Removal in Section 3 for procedures 5 Locate the appropriate jumpers on the system board that require resetting see the pr...

Страница 76: ...DIMM sockets locations are shown on the figure System Board Connector and Socket Locations earlier in this section The sockets support up to 512 MB of high speed SDRAM memory The sockets support DIMM...

Страница 77: ...deable with 64 MB 128 MB or 256 MB modules installed in up to two DIMM sockets on the system board system Setup Utility built into the BIOS 4 Mb FLASH ROM for fast economical BIOS upgrades integrated...

Страница 78: ...dual USB ports Supports PCI bus interface integrated IDE controller USB AC 97 Link for audio and telephone Codecs interrupt controller timers 3 3V operation power management logic enhanced DMA contro...

Страница 79: ...less chance of inadvertently damaging the system board than when physically replacing ROMs network administrators can exercise company wide control of BIOS revisions The BIOS programs execute the Pow...

Страница 80: ...s If the BIOS detects an ISA printer port mapped to the same address the built in printer port is disabled Verify in the BIOS Setup that printer ports mapped to the same address are enabled or disable...

Страница 81: ...celerated Graphics Port The system board contains a direct integrated accelerated graphics port Direct AGP on the system board that supports graphics intensive 3D applications The Direct AGP supports...

Страница 82: ...are given in the following sections System interrupt settings parallel interrupt settings and serial interrupt settings are included in Section 2 System Configuration Memory Map The system memory map...

Страница 83: ...ystick 0376 Secondary IDE channel Bus Master IDE controller 0378 ECP printer port LPT 1 0380 038B Intel 810e chipset graphics driver 03C0 03DF Intel 810e chipset graphics driver 03F0 03F3 Standard flo...

Страница 84: ...IDE controller DMA Settings The system s DMA settings are given in the following table DMA Settings DMA Setting Device 0 Available 1 Available 2 Diskette drive 3 Parallel port for ECP or EPP audio 4...

Страница 85: ...system board Riser Board Bracket A Riser Board C Riser Board Connector on system board B Expansion Board Connectors D Riser Board Bracket The riser board has three PCI connectors for adding up to thr...

Страница 86: ...5 Illustrated Parts Breakdown Order Spare Parts Field Replaceable Unit List Illustrated Parts Breakdown...

Страница 87: ...tem FRU List Item Description 1 Audio Cable CD ROM Drive or DVD ROM Drive 2 Logitech PS 2 3D Button Wheel Mouse 3 Ultra DMA 66 Cable 2 connector Hard Drive 4 IDE Cable 2 connector CD ROM Drive or DVD...

Страница 88: ...ype Diskette Drive with Bezel 21a 21b 40X or Higher CD ROM IDE Drive 8X or Higher DVD ROM IDE Drive 22 10 GB or higher EIDE Smart Hard Drive 5400 rpm or higher DMA 66 23 LED Board Assembly 24 AC Power...

Страница 89: ...n The following figure shows the illustrated parts breakdown IPB for the PowerMate ES SlimLine Series system Each FRU on the IPB is identified with a number that cross references to the FRU list Power...

Страница 90: ...6 Preventive Maintenance System Cleaning Keyboard Cleaning Mouse Cleaning...

Страница 91: ...leaning kit As an alternative use a glass cleaner then wipe with a clean lint free cloth 4 Local distributors and dealers may sell diskette drive head cleaning kits These kits contain special diskette...

Страница 92: ...Power down the system and unplug the AC power cord 2 Unplug the mouse from the system 3 Turn the mouse upside down and locate the ball cover Locating a Typical Mouse Ball Cover A Typical Mouse Ball Co...

Страница 93: ...7 Troubleshooting Checklist Diagnostics...

Страница 94: ...or surge protector Check the outlet or surge protector by plugging in a lamp Non System Disk error message displays when the system is started A diskette is in the diskette drive and the diskette dri...

Страница 95: ...a diskette in it Check that the diskette is being loaded correctly Check that the system and monitor power lamps are on and the power on screen appears Check that the diskette is formatted If not form...

Страница 96: ...d Make sure the keyboard or mouse cable is firmly connected to the rear of the system If this does not help turn off the system wait five or more seconds and turn on the system Mouse cursor moves erra...

Страница 97: ...eck that the cable connecting the CD ROM drive to the system board CD audio connector is in place and secure Speaker Problems Check the following problems to see the possible cause and solution No sou...

Страница 98: ...2 power supply voltages Measure voltages with system board installed 5 Replace the LED board assembly 6 Replace the power supply 7 Replace the system board Power supply malfunction Any of the followin...

Страница 99: ...light when diskette is loaded 1 Check cable connections between diskette drive and system board 2 Check diskette drive cable Replace as necessary 3 Check power supply 4 Replace diskette drive 5 Repla...

Страница 100: ...ies of the built in video controller and DRAM Wavy display 1 Check that the system and monitor are not near motors or electric fields Blank display 1 Press any key or move the mouse to ensure power ma...

Страница 101: ...CD ROM drive audio cable Replace as necessary 6 Replace the CD ROM drive 7 Replace the system board Cannot access CD ROM drive 1 Check that the CD ROM driver software is loaded and not corrupted 2 Che...

Страница 102: ...8 NECC Information Services Service Telephone Numbers Technical Support...

Страница 103: ...information for obtaining technical support from NECC With access to a telephone modem and or fax machine you can use these services to obtain information on a 24 hour basis NECC Website If you have a...

Страница 104: ...specific information in your questions as possible Also if sending a fax please include your voice telephone number and your fax number with the question You should receive a response to your question...

Страница 105: ...9 Specifications System Board Keyboard Mouse Optional Speaker Set System Unit Diskette Drive Hard Drive Power Supply CD ROM Drive Environmental Compliance...

Страница 106: ...System Board Micro Star International MS 6303 with onboard LAN Processor Celeron 466 MHz or higher processor 66 MHz or higher FSB Pentium III 533 MHz or higher processor 133 MHz or higher FSB L1 Cach...

Страница 107: ...e following table Keyboard Specifications Feature Specification Keyboard Cherry Windows 95 Enhanced Dimensions Width 6 7 inches 170 2 mm Length 18 0 inches 457 2 mm Height 1 4 inches 35 6 mm Mouse Spe...

Страница 108: ...System Unit Specifications Feature Specification Dimensions slimtower Width 3 4 inches 87 mm Depth 12 9 inches 332 mm Height 12 3 inches 315 mm Weight 12 8 lb 5 8 kg Device Slots One 5 1 4 inch front...

Страница 109: ...higher Ultra DMA 66 hard drive with SMART technology The following table includes the drive s general specifications Hard Drive Specifications Feature Specification Hard Drive Capacity 10 GB or higher...

Страница 110: ...rive The general specifications for the drive are included in the following table Use of CD ROM drive controls adjustments or the performance of procedures other than those specified in this document...

Страница 111: ...ded in the following table Specifications Feature Specification Operating Environment Temperature 32 F to 95 F 0 C to 35 C Relative Humidity 85 at 35 C Compliance The system meets the compliance stand...

Страница 112: ...P Accelerated Graphics Port A high speed high performance video standard supported by a dedicated connector on the system board The connector allows the connection of an AGP board to the system board...

Страница 113: ...nchronous Refers to operations that do not require the clocks of communicating devices to be coordinated Instead the devices send signals to each other indicating readiness to receive or send Compare...

Страница 114: ...et of programs permanently stored in ROM chips installed on the system board The BIOS contains functions that control the real time clock keyboard disk drives video display and other peripheral device...

Страница 115: ...at starts by itself and loads the operating system bps Bits per second The number of bits of data that can be transmitted in one second Because data compression schemes enable more than one bit per vo...

Страница 116: ...ated from a block of data used to verify the integrity of that data For example a modem could send a block of data and include the number of 1 s that occur in the block The receiving modem could count...

Страница 117: ...r transferring data usually between memory and a disk drive without going through the CPU DMI Desktop Management Interface A standard for PCs that allows manipulation of PC components over a network f...

Страница 118: ...A video interface that offers more colors or higher resolution than VGA EPP Enhanced Parallel Port a parallel port standard for PCs that supports bidirectional communication between the PC and attache...

Страница 119: ...Combination of two or three keys such as Ctrl Alt D that you press simultaneously for a particular function hot plugging The ability to add and remove devices to a computer while the computer is runni...

Страница 120: ...t modern computers include both an AT bus for slower devices and a PCI local bus for devices that need better bus performance In 1993 Intel and Microsoft introduced a new version of the ISA specificat...

Страница 121: ...puters over a telephone line MPC Multimedia Personal Computer a software and hardware standard developed by a consortium of computer firms led by Microsoft There are three MPC standards called MPC MPC...

Страница 122: ...z it yields a throughput rate of 133 megabits per second 64 bit implementations running at 66 MHz provide 524 Mbps See ISA peripheral Input or output device not under direct computer control A printer...

Страница 123: ...is determined by the number of pixels on the screen Resolution is usually specified in pixels by scan lines for example 640 by 480 See pixels RS 232C Standard interface for serial devices S SEC Single...

Страница 124: ...elf Monitoring Analysis and Reporting Technology A hard drive feature that works in conjunction with system software for example LANDesk Client Manager NEC Auto Backup for identifying a potential prob...

Страница 125: ...uter Viruses usually trigger a harmless or destructive occurrence on the system activated by some preset condition Viruses are frequently written with antisocial intent VGA Video Graphics Array Graphi...

Страница 126: ...torage device write back Also called copy back A cache strategy where write operations to data stored in the internal microprocessor L1 cache aren t copied to system memory until absolutely necessary...

Страница 127: ...rive 3 13 expansion board 3 10 general rules 3 2 hard drive 3 15 LED board 3 19 power supply 3 20 processor 3 8 riser board 3 19 riser board bracket 3 10 stabilizers 3 3 system board 3 21 system cover...

Страница 128: ...ct Recovery Program CD features 1 8 NECC service and support email fax technical support 8 3 technical support services 8 3 telephone numbers 8 2 website 8 2 Norton AntiVirus 1 8 O Online documentatio...

Страница 129: ...nterrupt requests 2 2 interrupts 2 2 jumper settings 2 4 problem solving 7 2 rear features 1 5 security features 1 9 specifications 9 2 unit specifications 9 4 System board components 4 7 features 4 7...

Страница 130: ...on against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may...

Страница 131: ...ery maintains system configuration information In the event that the battery fails to maintain system configuration information NECC recommends that you replace the battery see Section 3 Disassembly a...

Страница 132: ...NEC Computer Systems Division 15 Business Park Way Sacramento CA 95828 www nec computers com 456 00131 000SRV 7 2000...

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