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 that are factory-installed or that you can install later.

The following illustration shows the locations of parts on the system board (some models).

1

Microprocessor fan connector

12

Front panel connector

2

Microprocessor and heat sink

13

SATA IDE connectors (2)

3

Memory connector 1

14 Front panel USB connectors (2)

4

Memory connector 2

15

SATA IDE connector (2)

5

Clear CMOS/Recovery jumper

16

PCI adapter connectors

6

Power connector

17

Front audio connector

7

Diskette drive connector

18

CD-IN connector

8

IDE connector 1

19 PCI Express x16 graphics adapter

 

 

 

connector

9

IDE connector 2

20 PCI Express x1 adapter connector

10

Battery

21

System fan connector

11

Power fan connector

22

12v power connector

22User Guide

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Lenovo 9389, 6490, 9635, 9637, 9277, 9269, 9631, 9283, 9287, 9265, 9383, 9379, 9648, 9387, 9279 Identifying parts on the system board