IBM Netfinity 3000, User Handbook Manual, Page: 287 / 370

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/
Battery
.2/
Configuration (rocker)
switches
1–4
Microprocessor speed
5 ROM operation mode
6 Ethernet controller
operation mode
7 Administrator password
8 Diskette write-protect
.3/
Microprocessor
.4/
DIMM Connector 0
.5/
DIMM Connector 1
.6/
DIMM Connector 2
.7/
Clear CMOS Request jumper
.8/
AGP slot connector for
optional AGP adapter
Notes:
1. An illustration of the system board and additional information
are provided on a label inside the server.
2. The configuration switches (1–8) are also known as rocker
switches. Their settings are specified later in this chapter.
Chapter 7. Server records and specifications
253