Saab...not trying to get that far.
I'm starting the machine (which is effectively new build) and entering BIOS/CMOS setup utility by clicking DEL before it attempts to boot up.
I see the system clock (at the wrong time setting) ticking away. I just tried again after a 2½ hour break - the clock ran for 4 mins 3 seconds and then froze.
If I shut down (hold the power button) and instantly restart the clock runs for a variable - but in the region of 25 to 30 seconds - then freezes.
JC - many thanks, will follow the link. Thanks.
The CPU works fine in my current machine - which has identical motherboard and memory chips in it. Must admit, I don't think I've tried it for over 4 minutes though. Hmmm.
It's making me suspect a heat problem. I did get a comment some time ago about "paste" between the heat sink and the CPU. The heat sink has been fitted/removed numerous times during the battle. Could this be a serious contender? Do I go anywhere specialised for the paste? Radio Shack?