Technical information

18
Table 2
Function Jumper
J2J1
Configuration
Clear CMOS 1-2 Preserve contents of NVRAM.
2-3 Replace contents of NVRAM with default
settings.
Clear system
password.
5-6 Maintain current system password.
6-7 Clear password
Recover from
corrupted BIOS
9-10 System boots using BIOS stored in the flash
memory.
10-11 BIOS attempts to load BIOS code from a floppy
into the flash memory. Typically used when
BIOS code has been corrupted.
Write Protect
Boot Block
13-14 BIOS boot block is write protected.
14-15 BIOS boot block is erasable and
programmable.
CAUTION: Programming the boot block incorrectly will prevent
the system from booting
Function Jumper
J3J1
Configuration
FRB timer. 1-2 FRB operation is enabled (system will boot
from processor 1 if processor 0 fails).
2-3 FRB is disabled.
Chassis
intrusion
detection.
5-6 Switch installed on chassis indicates when the
cover has been removed.
6-7 Chassis switch is bypassed.
BMC FRU UP 9-10 The system will boot normally
10-11 The system will attempt to update the BMC
Function Jumper
J4J2
Configuration
BMC Write
Enable.
1-2 BMC boot block is write protected
2-3 BMC boot block is erasable and programmable
NOTE:
Default options are in bold