Are P4s more stable at high temperatures?
People have stated that P4s are "hyper-stable" at temperatures that would cause an Athlon to crash.
I've always known that this isn't true, and a lot of you also know that this isn't the case.
But, I set out to prove it nonetheless. So, I grabbed my 1700+ Palomino, and dropped it in the KX7 system that was sitting on my desk. I hooked up the digidoc5, with a thermistor touching the side of the CPU core so I could get the actual CPU temperature. The only cooling was a 2500+ HSF, with various fans. I put MBM5 and F@H on it, fired them up,
unplugged the cpu fan, sat back, and watched the thing heat up.
Would you care to guess how hot the 1700+ got (it NEVER froze due to heat- it DID freeze with -forcesse, but it was doing that at 38*C, too. That's just an issue with some of the Palomino cores).
75*C?
No.
80*C?
Nope.
85*C?
*yawn*
87*C
*zzzzz*
Well, I'm actually not entirely sure what I hit- the DigiDoc 5 won't read past 90*C (trust me, I tried- with a Butane torch and a spare thermistor

), but it was
AT LEAST 90*C. And judging by the amount of time it took to come down to a temperature of 90*C or below so the DigiDoc5 could read it, I would guess that it actually hit something close to 100*C. While running F@H. Without crashing.
It spent a grand total of around 20 minutes at or above 70*C over the course of the test, without crashing. Ever. It then spent all night between 68*C and 53*C, with an average of 59*C (according to MBM5- remember that the actual temperature is 5-10*C higher than this).
So much for "the P4s are more stable at high temperatures", eh?
Some pics/screenshots: