CMOS error

  • Thread starter Thread starter titus12
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titus12

I can not get my computer to boot-up. I get these errors on my computer;
CMOS memory is wrong, and CMOS memory size is wrong. I have WinXP Home SP2;
what is wrong with my computer?

Thank you,
David
 
Your BIOS chip has something wrong with it. No computer can run at all
without the chip that lets it do things like see the hard drive, and so on.
You probably need to get a new computer. Repairing the old one would
probably cost more than that. You will have to decide that for yourself.
I don't mean that you could not repair the BIOS. it's just that, usually,
the cost is more than a new system. I would ask a repair shop how much they
would do it for. There's always the possibility that simply rewriting the
BIOS software would do it.
 
in message
I can not get my computer to boot-up. I get these errors on my
computer; CMOS memory is wrong, and CMOS memory size is wrong. I
have WinXP Home SP2; what is wrong with my computer?
Click to expand...


- Power off.
- Short the 2-pin header on the motherboard to reset the CMOS table (a
copy of the BIOS but with modifications, if any, that you did that are
different than the defaults). Leave shorted for 1 minute.
- Remove the jumper.
- Power up.

Still get the error? If so:

- Power off.
- Replace the CMOS battery (probably a wafer cell, often a CR-2032
model).
- Short the 2-pin CMOS reset header for a minute.
- Remove jumper and power up.

The reset of the CMOS table is because that is where are the settings
that the system uses on bootup (not the ones back in the EEPROM for
the BIOS which only supplies default [sets of] settings). If the CMOS
copy gets corrupted, those settings cannot be read or invalid values
are used. Resetting the table in CMOS forces the BIOS to reload the
CMOS with a new copy of the table. Those will be the default
settings, so if you did any tweaking of those settings then you will
have to tweak them again.
 
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