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Monkeywrench
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Joined: 22 Jun 2004
Posts: 205
Location: Florida
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 Posted: Tue Jun 22, 2004 3:44 pm Post subject: bios resets .. normal behavior? |
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Okay.. sorry if this has been posted before, but a quick search didn't show many results I was looking for.
My situation is basically: whenever I unplug the power to the power supply for my desktop (to move the computer for cleaning or something) and plug it back in, my bios is reset. Is this normal behavior? Once when my computer was out of commission for a week or so (broken processor) when i booted it back up, I had multiple errors related to the 4 year time difference between the two boot times because the cmos clock was reset.
So i guess the question is... is this normal behavior? or (as I suspect..) is the CMOS battery dead?
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forbjok
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Joined: 21 May 2004
Posts: 207
Location: Hordaland, Norge
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| Posted: Tue Jun 22, 2004 4:02 pm Post subject: |
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Sounds like it could be a dead battery, yeah.
Do you get a "CMOS checksum error" or similar on boot? |
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Monkeywrench
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Joined: 22 Jun 2004
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| Posted: Wed Jun 23, 2004 7:56 am Post subject: |
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| forbjok wrote: | Sounds like it could be a dead battery, yeah.
Do you get a "CMOS checksum error" or similar on boot? |
Erm... on linux boot? Or when BIOS is getting everything set and ready?
I don't think there are any errors displayed during the linux boot. dmesg | grep -i cmos doesn't return anything, anyway. As for BIOS boot, nothing.
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forbjok
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Joined: 21 May 2004
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Location: Hordaland, Norge
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| Posted: Wed Jun 23, 2004 9:37 am Post subject: |
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| Monkeywrench wrote: | | forbjok wrote: | Sounds like it could be a dead battery, yeah.
Do you get a "CMOS checksum error" or similar on boot? |
Erm... on linux boot? Or when BIOS is getting everything set and ready?
I don't think there are any errors displayed during the linux boot. dmesg | grep -i cmos doesn't return anything, anyway. As for BIOS boot, nothing. |
On BIOS boot, usually just before it detects the harddrives. I'm not sure if all BIOSes display these errors, but the times I've done a CMOS clear, either by using the CMOS clear jumper or by temporarily removing the battery, a CMOS checksum error has appeared on the next boot, until I reconfigure the BIOS and save the new settings.
I've yet to see a PC with a completely dead CMOS battery (though, I'm sure they exist), but I've seen iMacs that get their dates reset to 1970-something  everytime they are rebooted. (however, the Macs don't give any checksum errors or such) |
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Kernel & Hardware
