I've overclocked my E6850 from 3.0 to 3.6ghz and it's running stable. VCore is at 1.35 (default is 1.325).

It idles at approximately 43C according to bios (system temp is 39). I'm not sure what it is under load.



Is that OK?

Yes.

worry about the loaded temps no higher then 70c

How do I find out loaded temps through BIOS? i've tried windows based monitoring but it never works...

Read the OCing guide over in the Overclocking section for programs. Core Temp Beta reads the cores correctly. Prime95v255 will load them up nicely and check for stability.

The temps are OK, but if I were you I would get a better CPU cooler. Even my old P4 era OC's never reached 38C ideal.

ericvpi, the following specifications and Scale for your E6850 is from the Core 2 Quad and Duo Temperature Guide http://www.tomshardware.com/forum/ [...] ture-guide

E6x50: Tcase Max 72c, G0 Stepping, Tjunction Max 100c, Vcore Max 1.350, TDP 65w, Delta 10c

-Tcase/Tjunction-
--70--/--80--80-- Hot
--65--/--75--75-- Warm
--60--/--70--70-- Safe
--25--/--35--35-- Cool

If you'd like to understand your temperatures and learn how to test, calibrate and properly monitor your rig, then check out the Guide. It also contains links to all the software you'll need.

itotallybelieveyou, when making recommendations regarding temperatures, it's important to be specific. 70c can be HOT or it can be SAFE, depending upon which temperature and processor you're referring to. Since there's a 10c or 15c difference between Tcase (CPU temperature) and Tjunction (Core temperatures), and up to an 18c difference in temperature specifications between certain processors, users can easily misunderstand which temperature is which.

This continues to be a major source of confusion within the temperature community, especially for users who are struggling with their first build. If we're not clear, then the temperature topic is reduced to a bowl of apples and oranges thermal fruit salad. I've been working very hard to help users make sense out of temperatures, and everyone can help just by being clear and specific when making recommendations. If your not sure which temperatures apply to which processors, then just refer to the Temperature Guide. Most of you regulars here on Tom's Forums know that it's located right next to Graysky's Overclocking Guide.

Thanks,

Comp

You said max voltage was 1.35 for my proc was 1.35, but at that voltage I kept getting prime95 errors. I upped the voltage to about 1.375 and I don't get errors any more.

I'm running prime95 max heat torture test and I'm getting about 59C under full load on my E6850. According that chart, I'm ok?

EricVPI, the specifications shown above are from Intel, and correspond to your processor, so your overvolt is a relatively insignificant increase. Prime95 in-place Large FFT's max heat is misleading, because it refers to total heat disipation between CPU and memory. Small FFT's, which is used for stress and stability testing, will produce processor temperatures about 4c higher. You may want to re-test using Small FFT's.

Also, you haven't mentioned which temperature your referring to; CPU or hottest Core? As I explained above, it can make an important difference.

Comp

Upped voltage to 1.3875.

Max core temps under small FFT load is 63C.

Is that OK? Am I significantly reducing the lifespan of my CPU by upping the vcore to 1.3875?

not really. I think anything under 1.5V is safe. Define your "small load" 50% or 20%

I dunno. It's the "small FFT" option that computronix said would stress my CPU the most and make the most cpu heat. (Versus blended or large FFT).


So is 63C max load ok?

yup 63c should be fine

What is your ambient temperature? If 1.3875 Vcore is your BIOS setting, what is your Vcore under load? You can check it with CPU-Z.

Comp