Brand new e6400

[Wartzay]

http://img478.imageshack.us/img478/3803/untitled2ei9.jpg

All idle temps are ~50c in coretemp, TAT, and speedfan. Idle temps are around 40c in bios.

I have not tried any overclocking. I did try to lower vcore from its default, but that did not seem to have much effect at all.

The case itself has adequte airflow, 2 90mm casefase in back, one in front. The last CPU I had in it (amd64 3200+) had no heating issues.

The bios has not been updated due to the machine running Vista so Gigyabyte's update tool does not work, the machine has no floppy drive either.

I have tried everything I could think of, resetting the heatsink multiple times, swapping the heatsink from my e6300 system, replacing the thermal paste with arctic silver five, putting in extra case fans, etc. Also I know I applied the thermal paste correctly, I've done it many times.

Does anyone have any ideas?

Also I have heard something about C2D's becoming concave, but I dont really understand it. Perhaps that can be explained too.

 

[Binky]

Wow. My 3.0ghz temps barely hit 45c even with the stock intel cooler running at 30% fan speed. Do you see any change with the case open?

 

[Wartzay]

No changes of any significance with the case open or closed.

I have done a bit more reading and I am starting to think I may have this concave problem. The fix is something called lapping but I have not been able to find much information on it. Anyone?

 

[tylerdustin2008]

It is where the cpu has an arch in it.

Lapping is where you sand the HSF, or cpu. You give it a nice mirror finish. It will take the concave out, but will also void the warranty.

 

[TheDro]

A concave cpu ihs will most likely have very poor contact with the heatsink, heres a picture of a E6400 that I pulled out of my htpc due to high temps (45-50c idle) compared to the E6300 that I originally had in there which idled around 35C.

http://img411.imageshack.us/img411/3140/ihsya0.jpg

As you can see the lower left corner of the IHS didn't even make contact with the heatsink, and the rest of the ihs looks like it made very poor contact with the heatsink as well. This chip needs a lapping job.