ECS Motherboard - how to clear CMOS???

GnatGoSplat

Golden Member
Apr 5, 2001
1,155
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I have an ECS P6BX-A+ motherboard. It has a P2-266MHz CPU on it.
I thought I'd have some fun and see if the thing would overclock. I set the speed to 300MHz in the BIOS. It didn't work. The computer won't POST and there is no video. No big deal, I thought - I'll just clear the CMOS. Well, the manual says to remove power to the board and set the Clear CMOS jumper to short pins 2&3 (1&2 is the normal position).

No good. CMOS didn't clear, computer still dead.

So I removed power, REMOVED THE BATTERY, and set the Clear CMOS jumper on pins 2&3. I left it this way for 15-minutes!!! (manual says "a few seconds" is all it needs). DIDN'T WORK!!!!!

My computer is dead. Is there any way to revive it? Surely this didn't kill the mobo, did it?

Shawn
 

LS20

Banned
Jan 22, 2002
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i have a question for you... what do you mean by wont post? my last computer died and it wouldnt even power on. ie no fans spinning. i switched power supplys and it didnt help. i cleared CMOS and it didn't help.

i thought it might be something physicall...
 

GnatGoSplat

Golden Member
Apr 5, 2001
1,155
1
81
Won't post = no beeping, no video. Power supply fan comes on and drives spin up, but that's it.

I figured it out though! I don't know exactly which step fixed it, but I removed RAM, CPU, and video card. I inserted the CPU, turned on the computer, let it sit for a few seconds. Then I inserted the RAM. Turned it on, and it beeped 3 times! So then I inserted the video card, and all was well.

I thought if I powered it on with some critical components missing, that would cause some kind of checksum error and the computer would flag the CMOS as having an invalid checksum and reset it. Whew, I wasted probably 2 hrs messing with it.

I think next time I'll get an ABIT or Soyo which will let you press INSERT while booting and it will reset the CPU speed.