On 2012-11-17, Karl Townsend wrote:
On 17 Nov 2012 05:22:24 GMT, "DoN. Nichols"
wrote:

On 2012-11-16, Karl Townsend wrote:
i had a CMOS checksum error on my CNC mill. So, I installed a new
motherboard battery. Now the CPU fan just comes on and it makes no
attempt to boot. Is the computer DOA? I checked connections and
wiggled stuff.

You may need to reset the CMOS. Pull the new battery, and short
the pins of the holder for a few seconds, then re-install the battery.
You will probably have to reset all the options after this, of course.

Good Luck,
DoN.

JOY, This was it but shorting it didn't work. leaving the battery out
all night did.

Glad it worked. I had forgotten about the likelyhood of a diode
in the battery circuit, but it makes sense. (Now, if you could identify
the actual chip with the CMOS memory in it, and which pins were power
and ground on the chip, shorting across there would have been quicker.
But you have it done, so no worry.

Good Luck,
DoN.

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