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New E8400...how critical is HSF contact

post #1 of 13
Thread Starter 
I just replaced my E6320 with a new E8400 (yea!)
The first shot at it my idle temps were 50C and load was 65C (per Real Temp 2.11)
That seemed stupid since it's the new 45um chip.
Figured it must be bad HSF install.
Reinstalled again (noticed that the AS5 contact didn't look good, so it was a bad install)
Temps are down much more now.
Idle is 29C on core0 and 38C on core1
I'm sure it's because the contact is still biased to one side (hence the 9C diff).
Since temperature isn't that much of problem on the 45um, would you worry about it? I'm not sure what I could really do, I know the HSF is on correctly, but the pressure it's exerting just isn't balanced well.

HSF is Scythe Ninja Rev B.
I'm currently running non-overclocked because Asus sucks and it can't resume from S3 (STR - standby) when overclocked (I need a functioning S3).
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post #2 of 13
Id say give it another shot, try and get it on there better if its possible.
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post #3 of 13
Quote:
Originally Posted by insaneoctane View Post
I just replaced my E6320 with a new E8400 (yea!)
The first shot at it my idle temps were 50C and load was 65C (per Real Temp 2.11)
That seemed stupid since it's the new 45um chip.
Figured it must be bad HSF install.
Reinstalled again (noticed that the AS5 contact didn't look good, so it was a bad install)
Temps are down much more now.
Idle is 29C on core0 and 38C on core1
I'm sure it's because the contact is still biased to one side (hence the 9C diff).
Since temperature isn't that much of problem on the 45um, would you worry about it? I'm not sure what I could really do, I know the HSF is on correctly, but the pressure it's exerting just isn't balanced well.

HSF is Scythe Ninja Rev B.
I'm currently running non-overclocked because Asus sucks and it can't resume from S3 (STR - standby) when overclocked (I need a functioning S3).
temperature isn't a problem on the 45nm? just because they run cooler than a 65nm normally doesn't mean you shouldn't be concerned with the temperatures of your processor...in fact, i would think the 45nm would be much more susceptible to damage from heat than a 65nm, so keep an eye on those temperatures, bud.
post #4 of 13
Thread Starter 
Quote:
Originally Posted by mcogan10 View Post
temperature isn't a problem on the 45nm? just because they run cooler than a 65nm normally doesn't mean you shouldn't be concerned with the temperatures of your processor...in fact, i would think the 45nm would be much more susceptible to damage from heat than a 65nm, so keep an eye on those temperatures, bud.
The Tjunction is higher on the 45um chips than the 65um chips. That means they can handle MORE heat. What people are finding, is that unlike the 65um chips where if they could just control the heat, they could up the voltage and OC farther...but with the 45um chip, you will overvolt the chip BEFORE you cook it (typically, as always there are exceptions). So, in that spirit, I was wondering if I should bother. My TjMax is 95degrees and my loaded temp a stock speed is 33/45 (50C to go!). But thats 12C between cores...I guess I should try again, I just don't know how to get a little more balanced clamping...
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post #5 of 13
Try reseating again, 29c idle on core 0 while core 1 is 38c is abnormal for any CPU, even quads. Not to mention core 0 has the higher load and is usually 1 or 2 degrees higher. If a reseat don't fix it then the DTS in core 0 is stuck, stuck pretty good too..
     
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post #6 of 13
The E8400's also seem to be reading incorrect idle temps, and possibly load temps.

Look at the "CPU" temp, see what it says. (they are on different sensors, but usually its fairly close to the core readings. It will atleast let you know about what the idle temps are)
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post #7 of 13
Quote:
Originally Posted by ThatGuy16 View Post
The E8400's also seem to be reading incorrect idle temps, and possibly load temps.

Look at the "CPU" temp, see what it says. (they are on different sensors, but usually its fairly close to the core readings. It will atleast let you know about what the idle temps are)
Correct. Many E8400 have bad core diodes. My cpu temps are in the low 40's at load, but my core temps will show high 50's and low 60's on water.
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post #8 of 13
Thread Starter 
Well I reseated the HSF a 3rd time. Tightened everything up, even SLIGHTLY bent the little mounting tangs to give a tad more pressure....
Same result. Core 0 = 27C idle & Core 1 = 37C idle
At load Core0=39C and Core1=46C
Whatever, I'm not going for a fourth install.
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post #9 of 13
Yeah lol a 10*C difference between cores isn't a good sign. I'd reapply AS5 after cleaning with rubbing alcohol and put the heat sink back on again.
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post #10 of 13
dont trust the idle temps. if i did i would idle at 45C. but i do load at 53C
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