Micron Electronics, Inc.
2-7
Chapter 2: Technical Information
Function Pins (default in bold)
What it does at system reset:
CMOS clear
1-2, Protect
Preserves the contents of NVRAM.
2-3, Erase
Replaces the contents of NVRAM with the
manufacturing default settings.
Password clear
5-6, Protect
Maintains the current system password
6-7, Erase
Clears the password.
Recovery 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.
Boot Block Write Protect
13-14, Protect
BIOS boot block is write-protected.
14-15, Program
BIOS boot block is erasable and programmable.
CAUTION
Programming the boot block incorrectly will prevent the system from booting.
CPU Speed
1-2, Protect
Processor speed configuration is protected.
2-3, Enable
Processor speed configuration is enabled.
Note
Depending on your configuration, this jumper is either available
to set the speed of the processor, or not available at all.
FRB Timer Enable
5-6, Enable
FRB operation is enabled (system boots from
processor 1 if processor 0 fails).
6-7, Disable
FRB is disabled.
Chassis Intrusion Detection
9-10, Enable
Switch installed on chassis indicates when
cover has been removed.
10-11, Disable
Chassis intrusion switch is bypassed.
Host Bus In-order Queue
13-14, Max
Host in-order queue depth is set at maximum.
14-15, Min (1)
Host in-order queue depth is set at 1 (used for
debugging).
