i7920 temps too high @ 3.00ghz!!!

GazzyGG

GazzyGG

GazzyGG

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Manchester
Hi all, Just finished my new i7 build and got a problem with temps! When I raise the bclk to 20x150 - 3ghz (all other settings are left untouched when I loaded the optimised defaults) the memory is running @ 1200mhz real temps at full load running prime95 blend test go upto 100c and shuts off before it is finished! Do u think I should have applied more thermal paste on the cpu as I only put a pea sized amount on and spreaded it all over so it was a v.thin layer? I have the Akasa 967 which looking at the review on 'bit-tech.net' It says-' the downside of direct contact coolers is that the thermal contact surface isn’t perfectly flat, with the joins between aluminium block and heat-pipe leaving visible gaps between each other. However, in the past this hasn’t harmed performance, and Akasa has done a good job of making the joins as small as possible – a little extra TIM applied to the CPU is all that’s necessary to fill in the cracks. ' Do u think thats my problem as the pins on the cooler are pushed though the mobo properly!
Thanks a lot in advance.
Oh I'm using some Arctic MX-3 I got hold of!
 
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Welcome to the Forums :)

Thermal Paste isn't really designed to fill larger gaps. It's only supposed to fill tiny inperfections in the surface so you have applied the correct amount of paste. Applying too much TIM can have the adverse effect which could insulate rather than conduct heat displacement.

My advice would be to either use TIM PADs or think about lapping both surfaces. Failing that see if another cooler does the job better. Even if a stock cooler performs better than the after market cooler you have bought, then there is something clearly wrong with the HSF you have bought.

Edit - if you are using the standard i7 connectors then you would know if it the cooler isn't connect correctly. Basically it's either connected or it isn't.
 
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If you raise the CPU multiplier and the BCLK, you need to input the voltage settings manually otherwise your mobo will tend to overvolt everything causing it to be unstable. Check on the Gigabyte forum to find out what are the corresponding voltage settings for your mobo.
 
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Ive got a i7 and 967, not fired it up yet but the finish on the cooler looked pretty good to me, I put just over a grain of rice on mine, to me a pea sized blob sounds too much.
 
reygjabla said:
If you raise the CPU multiplier and the BCLK, you need to input the voltage settings manually otherwise your mobo will tend to overvolt everything causing it to be unstable. Check on the Gigabyte forum to find out what are the corresponding voltage settings for your mobo.
Click to expand...

I to agree with this, if you haven't set Vcore and QPI/Vtt manually yet, the mobo will be overvolting like crazy.

When I first setup my i7 rig, I tried a mild o/c to 3GHz, and I left voltages on auto, and when I checked CPUZ the Vcore was at 1.35v, when my chip only needed like 1.185v Vcore for 3GHz.

My temps were ridiculous as well with voltages on Auto to.

If the temps are still high after manually setting the voltages in the BIOS, then you should try reseating the HSF.
 
100 degrees is far too hot though even for it overvolting crazily..

I would re-mount the heatsink as it sounds like a bad mount to me
 
High alright

I had the VCore on auto and at 3.2 is was pumping 1.4v into the chip and the temps hit 90c and up...after a little searching I set it to 1.25v and the temps dropped down to 74c with the stock cooler (waiting on H50) now if I could just get the 12GB working at 3.2 without cold boots probs I'd be happy...
 
I have changed the Vcore to 1.185v for the 3GHz overclock and put the QPI/Vtt to normal.
Now running prime95 blend test and not going above 98c full load!
With real temp my temps are between 45-50c on idle. They have gone down by 10c! Thats from just lowering the vcore!
So, I'm stable @ 3.0GHz with turbo mode on and memory @1500mhz.
Have got to 3.6GHz with turbo disabled cpu vcore @ 1.293v / qpi/vtt @ 1.280v but idle temps are 60c! When I run prime blend the temps are upto 100c and shuts down.
Yes, I have cleaned the thermal paste off and put just the size of a grain of rice on the cpu without spreading it this time.
The cooler is fitted ok and the fan plugged in!
When I get more time Iam going to fit the stock cooler to see if there is any difference.
Maybe I should just buy a Prolimatech Megahalems instead!
Thanks a lot guys.
 
make sure you spread the paste so the layer is nice and thin and covers the whole CPU thats exposed in the socket. With the small amount that u need most of the time the heatsink wont spread it fully.
 
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