IBM 6268 Personal Computer User Manual


 
Chapter 2. System board features
Physical layout
The system board might look slightly different from the one shown.
Note: A diagram of the system board, including switch and jumper settings, is attached to the underside
of the computer cover.
System board, types 6268, 6278, and 6288
Jumper
Jumpers on the system board are used for custom configurations. For the location of the CMOS recovery
jumper, refer to the “System board, types 6268, 6278, and 6288,” above.
Cable connectors
Connections for attaching devices are provided on the back of the computer. The connectors are:
USB (2)
Mouse
Keyboard
Serial
Parallel
Monitor
Some models only: Ethernet adapter with an RJ-45 connector
Integrated Analog Devices, Inc. audio controller with line in, line out, and microphone connectors
1Microprocessor
2DIMM 0
3DIMM 1
4Alert on LAN connector
5Secondary EIDE connector
6Diskette connector
7Primary EIDE connector
8Power connector
9Fan connector
1Battery
11Wake on LAN connector
12PC/PCI legacy audio adapter
13Clear CMOS/recovery jumper
14PCI adapter slot 4
15PCI adapter slot 3
16PCI adapter slot 2
17Chassis speaker connector
18PCI adapter slot 1
19CD-ROM connector
Figure 7. BIOS configuration jumper (J7A1)
Pins Description
1 and 2 Normal (Factory default)
2 and 3 Clear CMOS/Password
Chapter 2. System board features 13