7.Lift the computer as shown and take care not to let the keyboard slide off the base.

System board layout

3 2 1

1 Microprocessor connector

2 System fan connector (not used) 3 DIMM connectors

4 Power connector 5 Inverter connector

6 CD-ROM drive or DVD drive connector 7 Diskette drive connector

8 Hard disk drive connector 9 LCD connector

10 CMOS clear jumper 11 Battery

12 PCI expansion slot 13 PCI expansion slot 14 Reserved (not used)

15 CD-ROM or DVD-ROM audio connector 16 Speaker connector

17 USB connector

18 BTN (button) connector 19 IR (Infra Red) connector 20 Audio I/O and USB connector

21 CPU fan connector (fan located on EMC shield)

14Hardware Maintenance Manual

Page 22
Image 22
IBM 6643, 2179 manual System board layout