[TriLUG] OT: BIOS question

jbrigman at nc.rr.com jbrigman at nc.rr.com
Tue Feb 13 10:40:39 EST 2007


Owen - some comments:

1) Using the CMOS "jumper" for most BIOS'es is the equivalent of 
removing. Just make sure the power cord is removed from the power 
supply or the switch on the power supply is powered off. Give the PC a 
moment after pulling power so the power supply filter capacitors will 
discharge. THEN: once the PC is definitely off, move the CMOS jumper 
over, count to 3, and move it back. Then power back up and try to get 
into the BIOS. Also: verify the correct position of the CMOS jumper - 
it could be in the reset position anyway. 

2) are you using a USB keyboard/mouse, or USB devices through a PS/2-to-
USB adapter? If so, try switching to a PS/2 keyboard/mouse to get into 
the BIOS.

3) IF the PC has a socketed BIOS chip (you'd have to know where to look 
and what it looks like), I'd completely power off the pc (pulling the 
plug from the back) and press gently on the BIOS chip with your thumb. 
If the chip has "walked" out of it's socket,  you'll here a quiet 
little "crak" as the chip re-seats in it's socket.

Gud Luk;
JKB



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