Temperatures slowly creep up during Orthos stress testing

[RandomUser]

I recently put together the following system:

Asus P5B Deluxe Wifi
Core2Duo E6400
Scythe Infinity
2G Corsair PC-6400 RAM
Thermaltake Armor series case

When I bumped the FSB up to 400, I had to raise Vcore to 1.325 to avoid rounding errors in SuperPi and Orthos.

At 1.325Vcore, the system idles at 42C. Under dual Super-PI, it runs at 50C.

However, under Orthos Blend test, it starts at 52C and slowly creeps up over the course of several hours. THe latest test reached 60C after 5 hours and the program shut off, but I got no errors that would indicate instability

In reading other posts, the 42C idle seems a bit high compared to others, especially with 1.325 Vcore (shows as 1.28 in PCProbe). Should I try reseating the Infinity (agian)? Or should I not worry so much since the type of abuse that Orthos puts the system through is not indicative of normal usage?

 

[n7]

You could try reseating your HSF.

However, the P5B Deluxe seems to report high temps usually. That, plus a lot of concave C2Ds = high temps...

Also, if you are OCed, wow, what a nice vcore.

The P5B-D undervolts as you see in PC Probe. You are running below stock vcore by alot.

 

[Noubourne]

The program shouldn't shut off by itself, that's instability.

If it slowly rises, it doesn't matter if temps are being reported too high, they are still rising and that's bad. If I had to guess, I'd say not enough case ventilation. Temps should hit a peak after about 10-15min or so and then stay there. If you're slowly rising, heat must be building up in the case. Assuming ambient temps are stable.

 

[RandomUser]

Originally posted by: Noubourne
The program shouldn't shut off by itself, that's instability.

If it slowly rises, it doesn't matter if temps are being reported too high, they are still rising and that's bad. If I had to guess, I'd say not enough case ventilation. Temps should hit a peak after about 10-15min or so and then stay there. If you're slowly rising, heat must be building up in the case. Assuming ambient temps are stable.

I feel like quite the idiot. After I reseated the heatsink the last time, I installed the CPU fan backwards resulting really bad air flow issues.

Reinstalling it correctly lowered the Orthos temps to 55C where they are holding steady after 6 hours. I still wish I had lower idle temps, but I guess I can't complain too much!

I've thought about lapping the processor but then realized that what I have is working pretty well and I don't want to mess it up!