ok
this may have no effect at all, but take out the battery and all the memory dimms and let sit for 5 minutes. Put it all back in, hit the reset plug in the front with a paperclip (gently) and reboot. Or various combinations of the above.
Although I didn't have a cmos issue I did have a problem of my tecra 8200 not getting to the POST at all. By removing everything and putting it all back in it worked and the machine is now fine. Actually I had forgotten that I did this while it was still plugged in and turned on :eek: but it actually made it better?? I won't recommend this last part, so was probably some kind of a reset issue!
cheers
sf2k