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What does it mean when unplugging the computer makes it forget the bios date?
40hz:
I'm gonna say: A - Battery...
Final answer, Meredith!
mouser:
Thanks for all the advice.
Unfortunately, after replacing the battery problem remains. Strange.
wr975:
After a recent battle with the computer i got it back together and working...
-mouser (December 24, 2008, 02:21 PM)
--- End quote ---
Messed around with some jumpers? Perhaps the bios reset jumper is set? (But then the computer wouldn't boot, or?)
40hz:
Very bizarre. Especially in absence of any damage to the battery holder.
Is there any debris or other thing shorting on/against the mobo? If you removed the mobo, check to see if there's anything caught under the board and that all grounding screws are installed. Chance you might have a hairline crack somewhere on the board that is preventing the battery current from getting to the clock. Check to see if board is flexed or screwed down too tightly.
Also scan for damaged/nicked traces on board. Try gently reseating all socketed chips by giving each one a gentle push after disconnecting the power cord.
Long shot - try reflashing your BIOS.
Carol Haynes:
Did you reset the CMOS completely when you replaced the battery?
Usually -
* switch off and unplug
* take out the battery
* move the CMOS link to clear position
* wait 5 minutes
* move CMOS link back to normal position
* replace battery
* plugin and switch on
* Enter BIOS and restore default settings
I have found this sequence necessary on more than one system because a failing CMOS battery leaves the BIOS settings and NVRAM in an inconsistent state - though not necessarily bad enough for the BIOS to report an error.
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