IBM PC Server 325, User Handbook Manual

Page: 225 / 288

System Board Jumpers
Table 2. System Board Jumpers
Identifier Default
Jumper
Position Description
J12 Power-on password reset
For instructions on resetting the power-on
password, see “Bypassing an Unknown
Power-on Password” on page 212.
J22 Ethernet enable
J25 Video enable
J26 SCSI controller enable
Move the jumper to the disable position if you
are not using the SCSI controller on the
system board, for example, if you install a
SCSI adapter, and plan to connect all drives to
it. By disabling the system board SCSI
controller, you free system resources.
J29 External SCSI termination. Use the default
jumper position when you install a 16-bit SCSI
external device, or when no external device is
attached.
Use this jumper position when you install an
8-bit external SCSI device.
J30 Flash update enable jumper
The default jumper position enables you to
update the flash BIOS on the system board.
J49 When your model supports the System
Management Adapter, the LogicLock features
are enabled.
Appendix A. Jumpers
211