Identifying parts on the system board

The system board (sometimes called the planar or motherboard) is the main circuit board in your computer. It provides basic computer functions and supports a variety of devices.

The following illustration shows the locations of parts on the system board.

1

Internal speaker connector

12

PCI adapter connector

2

Memory connector 4

13

PCI adapter connector

3

Memory connector 3

14 Serial connector (COM 2)

4

Memory connector 2

15 PCI Express x1 adapter connector

5

Memory connector 1

16

Clear CMOS/Recovery jumper

6

Front panel connector

17

Battery

7

Power supply connector

18

Microprocessor fan connector

8

PATA IDE connector

19

Microprocessor

9

System fan connector

20

Microprocessor heat sink

10

SATA IDE connectors (4)

21

12V power connector

11

PCI Express x16 graphics connector

22

Diskette drive connector

4Hardware Replacement Guide

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IBM 8138, 8131, 8123, 8137, 8124, 8122 manual Identifying parts on the system board