42
9.
On the header (J2J1), move the first jumper back to pins 1-2 to restore normal
operation as shown below.
Figure 8.2
10. Replace the cover and turn on the computer.
For all the below actions after the operation is complete replace the jumper back to its
original position unless otherwise stated.
Table 8
Jumper changed from factory default Users actions
Clear CMOS
As listed above
Clear System Password
When this jumper has been set all system
passwords are cleared from the BIOS. You
can then enter the BIOS and set new
passwords.
Recover from corrupt boot
Start the machine and insert the DISK
containing the BIOS. The system will then
attempt to boot up using the BIOS on the disk.
You must then upgrade the BIOS using the
IFLASH.EXE program see page 74
Write Protect boot block
Changing this jumper will allow program’s
such as Virus Killers to write to the boot block.
It will also allow Viruses to be put on the boot
block. Use with caution.
FRB timer
This operation need’s no other actions. The
system is now set to boot from the second
processor if the first one fails. No need to
replace jumper to its original position.
Chassis intrusion detection
This operation need’s no other actions. The
system will now work with or without the case
on. No need to replace jumper to its original
position.
BMC Firmware Update
Changing this jumper will make the system
attempt update the Baseboard Management
Controller’s Firmware. Use with caution.
BMC Write Enable
Changing this jumper will allow program’s
such the Baseboard Management Controller’s
Firmware to be written to. Use with caution.
CMOS Clear Jumper
J2J1 (1-3)
1 2 3
