E8400 temperature increase with small OC

[GSD]

Hi all.

I have an E8400 CPU (E0 stepping) with a Thermalright Ultra 120A CPU cooler and when I first got the CPU the temps were reading 34C idle and never exceeded 46C full load.
I just overclocked the E8400 to 3.6Ghz at stock voltages and ran IntelBurnTest and the temps have shot up by 11C under load! Surely it shouldn't increase by that much? I have not increased the voltages.

Temps are currently reading 63C in RealTemp (they were 46C @ 3.0Ghz).

I'm not very happy with those temperatures.

 

[GSD]

I just ran Prime95 and it never exceeds ~49C, which is more like what I was expecting. I think it's only IntelBurnTest that causes those huge temp increases - what a crazy stress program!

 

[V3NOM]

ya, prime 95 doesnt represent real world values, and intelburntest is just ridiculously insanely USELESS. folding@home, running a virus scan + some other multitask or running a game for a bit will give you accurate real world temps, but unfortunately won't stress as much as prime95 or orthos 🙁

 

[col-p-todd]

obviously the temp will increase if you oc a cpu even if there is no voltage increase. ocing a cpu will make it faster, consume more power a generate more heat. those temps look correct to me after an oc with air cooling.

maybe somebody who also has an oc'd E8400 can share their temps with you.

 

[V3NOM]

the prime 95's look okay to me, forget and uninstall intelburntest 😀

 

[zeroyb]

I have my E8400 running at 3.4Ghz (8.5 x 400) with S1283. It was a while ago, so I don't remember the details. But I didn't go for 3.6Ghz because for me to up 0.2Ghz, I had to raise voltages a bit and temps when up a lot too. I guess mine is not as great of an OCer like other people's.

Anyway, with 3.4Ghz, my temps are (using RealTemp) 40 at idle and 53 at load. But if I remember correctly, I think mine was around low 60's at load when I OCed to 3.6Ghz also.