Core i7 920 at 3.8ghz temps ?

I have my I7 920 running at 3.8ghz with a cooler master v8 and have a couple questions I was hoping someone can help me with.

I was looking at average temps of people running this setup and found them to be all over the place. My average temp is 80c running prime95, using core temp and real temp programs for my reading. Is this too high? Im running this test setup outside of a case (should my temps be better inside a case? It will be in a Antec 900).

Lastly, running core temp and real temp apps only one core is riding high in the 80c range all the others are 76c and below, whats the safe way to average this?

It sounds a little high to me for that cooler. Whats the core voltage? Mine at 3.8 is set to 1.37V. I have the zalman 9700, temps running prime95 with core temp stay under 65C after several hours. This is in my antec 900.

hey guys thanks for the replies! Well, I figured out the temperature issue, and it was my fault. Hyper threading was still on, at 3.8ghz and full load prime95 im at 69c on the highest core and 62c on lowest outside of case.

I guess the question is if I should keep HT on and lower my overclock or keep it off and keep a higher overclock. Ive been reading around and it looks like normal applications see performance increase with it on.

mine 3.7Ghz 185x20 on 1.29v
idle 40°c max load 72°c
room temp 26~33

Ive read around, and though its not the norm HT enabled can cause up 10 10c difference in temperature. I have it disabled for now, I run 80c average at 3.8 with it on now and 68c avg with it off.. thats huge

Heh, even AMDZone was able to get an i920 up to 4.0GHz at 1.4V - didn't check to see what temps they running. Look for the Asus P6T mobo review on the front page, if interested.

Well the i7 920 can burn 150w at stock speeds so the power consumption when overclocked is going to be somethine crazy. Also case ventilation makes a huge difference. I recently changed the air flow in my workstation because No2 Opteron was running 6c hotter than No1 Opteron even though there side by side. I swapped the cpu's and heatsinks around and no difference. It turned out the second cpu was getting the warm air from the first cpu and making it run hotter. I reversed the front case fans and installed some 120mm fans in the side to push cool air onto the cpu's and now there is only 1c difference.

The Opterons only use 65w and run very cool as it is but you might find this makes a big difference with the i7. Redo the heat paste, setup some extra fans and see what happens. BTW does the cpu cooler actually feel like it's reaching 80c. If you can hold your hand on the base or one of the heat pipes then it's either not running at 80c or the cooler is not doing it's job. Also try and get hold of a Thermalright Ultra-120. If the Thermalright can't keep it cool then nothing will.

Which stepping? I was lucky enough to get a D0, it idles/loads at about 34C/66C at 4.0GHz. 1.264 vcore.

How's the airflow in the case? What's your core voltage at? What motherboard?

Sorry for all the questions, but they could all play a part.

Check core voltage with cpu-z.

And BTW are you using water cooling? Cuz how in the world are you getting those temps at 4.0ghz!!!???... I envy you!

Is it possible that I have a bad CPU that runs too hot??.....Or do you think my heatsink is bad? I dont know what to do. Im not sure if i should RMA my heatsink or CPU...

Welcome aboard!

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