High CPU temps :S @stock

[hakank68]

Hello, i have recently built my PC, i have only watercooled my cpu and at stock speed i was getting high 70's on intel burn test (max Settings). everything seems fine except these temps, do you guys have a suggestions as this is my first build, be ready for noobish questions

i5 4670k@stock
7970 matrix platinum
Gigabyte z87x-ud3h
Corsair vengeance 1866mhz
alphacool xt45 240mm rad
EK dcp 2.2 Pump/res
EK clean csq Nickel cpu block

 

[hakank68]

Is it best when it goes from pump to inlet then outlet to rad, I think I may have done it wrong way round

 

[hakank68]

ive changed it now but idle temps are 25-30 but load is still very high around 70's, do you guys think i may have done something wrong with the thermal paste ?

 

[hakank68]

i have air bubbles in every part of the loop, will this effect temperatures a lot, i have some even in the block and any tips on how i can get rid of them

 

[hakank68]

Sorry to ask, but did you use TIM on the cpu?

yes i used the one which came with the block

 

[hakank68]

I think I'll try getting rid of the air first before removing the block but can air really have a significant effect on temperature ?

 

[hakank68]

Were I supposed to do this when setting up the res/pump as I out the fittings in and started filling the loop, there was also a small spongy thing which came with the res/pump, was this supposed to go in the res ?

 

[hakank68]

Air will rise so having the res above everything else will help, if this means giving the rig a slight tilt then so be it. I usually fill the res not much more than over the outlet, turn on, let it drain a bit, turn off then repeat till full. Sometimes i'll let it run for a minute or two between top ups towards the end which seems to help. Over time (few hours) you should get most, if not all of the air out leaving the res cap off.

I'd agree with not using the 'pea' method. I tend to go for a cross, apply pressure on the block, lift to check spread then re-apply if needed and job done.

How have you got your fans mounted and what speed are they running at?

i have mounted the fans with under the rad exhausting air out of the case and im running them around 700rpm and i have tried faster but no effect

Those bubbles are too small to be the cause for this. They aren't exactly helping though but they will go away in time by themselves. If you are having problems with paste, might be easier to spread the paste thinly using a card (this tends to be more effective with thick pastes as they dont spread very thinly from the blob method).

What was the spread of paste on the block after you removed it to re-apply?

The sponge is to put your pump on to remove vibrations, apart from that it isn't functional.

when i took it off, it was spreaded around 70%, i am using the Gelid GC extreme, im a right to say that this is one of the thick pastes ?

 

[hakank68]

Id remount the block, also can you post a picture of your complete setup?

 

[hakank68]

I think the the problem might have been this guys, but will this effect temps a lot, I didn't have any spare TIM so I had to spread the one which was already on there , but I will be buying more tomorrow

 

[hakank68]

Gelid GC extreme seemed good but the spread ease is ridiculous, it's so thick

 

[hakank68]

Thanks for the advice, I'll be buying some Arctic MX-2. Will this be easier to spread and I've also seen some people use the pea method but also using the block to spread it but they removed the block an made sure it was fully spreaded, is this a good idea?

 

[hakank68]

i havent changed my thermal paste yet, but i think i got rid of some of the air bubbles as i was getting max 67 degrees on intel burn test at @4.2, hopefully itl improve a bit more once i get the new therm paste