NEC PowerMate CT, Service And Reference Manual

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Contents v
3 1/2-Inch Internal Drives................................................................................................ 3-26
Removing a 3 1/2-Inch Internal Drive ...................................................................... 3-26
Installing a 3 1/2-Inch Internal Drive ....................................................................... 3-28
CMOS Battery ................................................................................................................. 3-30
System Board................................................................................................................... 3-31
Removing the System Board .................................................................................... 3-31
Reinstalling the System Board.................................................................................. 3-32
Power Supply................................................................................................................... 3-33
Front USB Port ................................................................................................................ 3-34
Front LED/Switch Bracket .............................................................................................. 3-34
Chassis Intrusion Switch.................................................................................................. 3-36
Minitower and Desktop Setup ......................................................................................... 3-37
Converting from Minitower to Desktop ................................................................... 3-37
Converting from Desktop to Minitower ................................................................... 3-38
Chassis Shell.................................................................................................................... 3-40
Replacing the Chassis Shell...................................................................................... 3-40
4 System Board
External Cable Connectors ................................................................................................ 4-2
Internal Cable Connectors ................................................................................................. 4-3
Jumper Settings.................................................................................................................. 4-4
Locating System Board Jumpers ................................................................................ 4-4
Changing a Jumper Setting ......................................................................................... 4-4
Upgrade Sockets ................................................................................................................ 4-5
Processor Socket......................................................................................................... 4-6
RIMM Sockets............................................................................................................ 4-6
Checking System Memory ......................................................................................... 4-7
Components ....................................................................................................................... 4-7
Processor and Secondary Cache ................................................................................. 4-9
System BIOS .............................................................................................................. 4-9
System Memory........................................................................................................ 4-10
Plug and Play ............................................................................................................ 4-10
PCI/IDE Ports ........................................................................................................... 4-10
Parallel Interface....................................................................................................... 4-10
Serial Interface.......................................................................................................... 4-11
USB Interface ........................................................................................................... 4-12
Accelerated Graphics Port ........................................................................................ 4-12
Integrated Audio ....................................................................................................... 4-12
Resources......................................................................................................................... 4-13
Memory Map ............................................................................................................ 4-13
I/O Addresses ........................................................................................................... 4-13
DMA Settings ........................................................................................................... 4-15
5 Illustrated Parts Breakdown
Ordering Parts.................................................................................................................... 5-2
Field Replaceable Unit....................................................................................................... 5-2
Illustrated Parts Breakdown............................................................................................... 5-4
6 Preventive Maintenance
System Cleaning ................................................................................................................ 6-2
Keyboard Cleaning ............................................................................................................ 6-2
Mouse Cleaning ................................................................................................................. 6-3