Acer Altos G900 - Manual (Page 33)

17
Main jumpers
Below table identifies the function of each pin pair on the main
jumper blocks (JP4, JP5, and JP6). The FRB3 Timer Disable jumper and
the BMC Force Update jumper are special purpose jumpers that you
should use only when instructed to do so. When you do need to
enable any of these features, use one of the spares from JP4 pins 1 and
2 or JP25 pins 7 and 8.
Jumper
block
Pins Jumper name - effect when shorted
JP3 1-8 Reserved.
9-10 BMC Boot Block Write Enable - Allows the BMC boot
block to be overwritten when updating the BMC
firmware.
11-12 BIOS Boot Block Write Enable - Allows the BIOS boot
block to be overwritten when updating the BIOS.
Jumper
block
Pin Jumper name - effect when shorted
JP4
1-2 Spare
3-4 BIOS Recovery - System will attempt to recover the
BIOS at the next boot.
5-6 Reserved
7-8 Reserved
9-10 Password Clear - User and administrator passwords
are cleared at the next boot.
11-12 CMOS Clear - CMOS settings are cleared at the next
boot.
JP5 1-2 FRB3 Timer Disable - Disables fault resilient boot timer
3.
JP6 1-2 BMC Force Update - Lets a system with corrupted BMC
firmware boot for an update.
AA G900 ug - EN.book Page 17 Wednesday, September 25, 2002 5:23 PM