NEC POWERMATE 5100 - SERVICE, Service Manual

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Contents v
NEC Configuration Change Notification..................................................................2-59
3 Disassembly and Reassembly
System Unit Cover Removal.......................................................................................... 3-3
Removing the System Unit Cover............................................................................. 3-3
Replacing the System Unit Cover ............................................................................. 3-5
Expansion Board Removal ............................................................................................ 3-6
Front Panel Removal ..................................................................................................... 3-6
Blank Panel and Metal Slot Cover Removal................................................................... 3-8
DIMM Module Removal ............................................................................................... 3-9
Processor Subsystem Removal....................................................................................... 3-9
5 1/4-Inch Device Removal ..........................................................................................3-10
3 1/2-Inch Hard Drive Removal....................................................................................3-11
3 1/2-Inch Diskette Drive Removal...............................................................................3-12
Power Supply Removal ................................................................................................3-13
System Board Removal and Replacement .....................................................................3-14
System Board Removal ...........................................................................................3-14
System Board Replacement .....................................................................................3-15
Riser Board Removal....................................................................................................3-18
CMOS Battery Removal...............................................................................................3-19
4 System Board
Connectors, Jumpers, and Sockets ................................................................................. 4-2
External Cable Connectors ....................................................................................... 4-2
Internal Connectors .................................................................................................. 4-3
System Board Jumpers ............................................................................................. 4-4
Changing Processor Speed .............................................................................. 4-5
Clearing a Password........................................................................................ 4-7
BIOS Recovery............................................................................................... 4-8
Upgrade Sockets....................................................................................................... 4-9
Processor Socket ............................................................................................. 4-9
DIMM Sockets ............................................................................................... 4-9
Checking System Memory .............................................................................. 4-10
Components .................................................................................................................4-11
Processor and Secondary Cache...............................................................................4-13
System BIOS...........................................................................................................4-13
System Memory ......................................................................................................4-14
Hardware Monitor ...................................................................................................4-14
Plug and Play ..........................................................................................................4-15
NLX Design ............................................................................................................4-15
ISA Bus...................................................................................................................4-15
PCI Local Bus .........................................................................................................4-15
PCI/IDE Ports .........................................................................................................4-16
Parallel Interface .....................................................................................................4-16
Serial Interface ........................................................................................................4-17
USB Interface..........................................................................................................4-17
Graphics Capabilities...............................................................................................4-18
Graphics Controller .................................................................................................4-18
Motion Video Controller .........................................................................................4-18
Graphics Support.....................................................................................................4-18
Integrated Audio......................................................................................................4-19
Pin Assignments...........................................................................................................4-19