I am, and have been for some time, running XP SP3. Have had no
trouble until now. It is on a M3A78_CM mobo with a AMD Phenom 9950
Quad cpu and 4GB DDR2.

I find that it freezes up after being on sometimes an hour, sometimes
longer, requiring re-powering up. I have tried the RAM one at a time,
and I have changed hard drives. Same result.

So I figure it is the CPU or MOBO.

Anyone have a thought on this?

Thanks

Duke