System Board Illustration
The system board, also called the planar or motherboard, is the main
circuit board in your server. It provides basic server functions and
supports a variety of devices that are preinstalled or that you can
install later.
Some configuration actions are controlled through jumpers on the
system board, whereas other actions are controlled through
switches. The following sections discuss the jumper and switch
settings that you can change.
If you plan to install, remove, or replace hardware in your server, or
if you must set jumpers and switches, you will need to know the
layout of the system board. The following illustration shows the
layout of the system board in your server. The numbered pointers
show the components that are discussed in this book.
.1/
5 V auxiliary power connector
.2/
Primary microprocessor socket
.3/
Power switch connector
.4/
Secondary microprocessor socket
.5/
DIMM sockets (memory
connectors)
.6/
Secondary IDE connector
.7/
Diskette drive connector
.8/
Primary IDE connector
.9/
Channel A SCSI connector (68 pin)
.1ð/
Channel B SCSI connector (50 pin)
.11/
Channel B SCSI connector (68 pin)
.12/
Clear CMOS Request (password)
jumper (J7E1)
.13/
Rocker switches
.14/
Battery
.15/
RAIDport connector
.16/
ISA slot connectors
.17/
PCI slot connectors
.18/
AGP slot connector
Chapter 7. Server Records and Specifications
203
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