Product guide

117
Chapter Six Technical Reference
Server Board Jumper
Summary (continued)
Jumper Block Jumper Name Pins (default in bold) What it does at system reset
J3J1 INT DET 5-6, Enabled Switch installed on chassis indicates when cover
has been removed.
6-7, Disabled Chassis intrusion switch is bypassed.
J3J1 BMC FRC UP 9-10, Normal System boots normally.
10-11, Program System attempts to update BMC Firmware.
J2J1 CMOS CLR 1-2, Protect Preserves the contents of NVRAM.
2-3, Erase Replaces the contents of NVRAM with the
manufacturing default settings.
J2J1 PSWD CLR 5-6, Protect Maintains the current system password.
6-7, Erase Clears the password.
J2J1 RCVRY BOOT 9-10, Normal System attempts to boot using the BIOS stored in
Flash Memory.
10-11, Recovery BIOS Attempts a recovery boot, loading BIOS
code from a floppy diskette into the flash device.
This is typically used when the BIOS code has
been corrupted.
J2J1 BIOS WR EN 13-14, Protect BIOS boot block is write-protected.
14-15, Erase/Program BIOS boot block is erasable and programmable.
General Procedure to Change
Jumper Settings
The general procedure for changing any configuration setting is the same for most
of the jumper functions, so we will describe it here.
1. Observe the safety and ESD precautions outlined at the beginning of this
section.
2. Turn all connected peripherals off, turn system power off and disconnect the
AC power cord.
3. Remove the side cover. You do not need to remove the server board from
the chassis, and you probably do not need to remove any add-in boards.