7950 overheating

ItsDenn · February 4, 2015

So my 7950 started to go to around 70 C recently during gaming while first it was around 60 C (no oc).

I decided to replace my thermal paste. Now it will ramp up to 70 C within seconds i have to stop whatever I am doing to not stop it from going further, I thought I didnt apply it properly so I reapplied again, now after 3 reapplies the same thing is happening

What am i doing wrong guys?

Is it a problem with the thermal pads?

http://www.mediafire.com/view/u1k11d43qccz1ks/20150204_172403%5B1%5D.jpg

http://www.mediafire.com/view/lsdhalfozgs2q2o/20150204_172405%5B1%5D.jpg

NicekillBG · February 4, 2015

I think that is normall for the amd cards to go up after some time passes, my card is simillar ill see in the near future how it goes

ItsDenn · February 4, 2015

I think that is normall for the amd cards to go up after some time passes, my card is simillar ill see in the near future how it goes

Yes but it isnt normal for a card to go up after reapplying thermal paste is it?

Altecice · February 4, 2015

So my 7950 started to go to around 70 C recently during gaming while first it was around 60 C (no oc).

I decided to replace my thermal paste. Now it will ramp up to 70 C within seconds, I thought I didnt apply it properly so I reapplied again, now after 3 reapplies the same thing is happening

What am i going wrong guys?

Is it a problem with the thermal pads?

http://www.mediafire.com/view/u1k11d43qccz1ks/20150204_172403%5B1%5D.jpg

http://www.mediafire.com/view/lsdhalfozgs2q2o/20150204_172405%5B1%5D.jpg

How tight are the 4 screws around the GPU? they should be quite tight. Sounds like bad contact to me.

blu4 · February 4, 2015

Make sure you tighten the screws on the heatsink tightly and in a cross pattern. If the heatsink isn't tight enough or is leaning one way more than the other it won't be making an even surface contact with the chip.

ItsDenn · February 4, 2015

How tight are the 4 screws around the GPU? they should be quite tight. Sounds like bad contact to me.

Yeah thought that too, but the screws are quite tight, if I want to make them even more tight I would have to put quite some force onto it and I dont think that is something that i should be doing

LabRat · February 4, 2015

what paste did you use? some take longer to burn in. some are crap........ like that thick diamond stuff. you didn't lose any of the pads on the memory did you?

SkilledRebuilds · February 4, 2015

some take longer to burn in

This & it also can produce higher temps for a little while until it is.

ItsDenn · February 4, 2015

what paste did you use? some take longer to burn in. some are crap........ like that thick diamond stuff. you didn't lose any of the pads on the memory did you?

The pads are still there, I used coolermaster thermal paste because that was the only stuff I had left, but even if it was the thermal paste I used it shouldnt be this bad. How long could it take to settle?

ItsDenn · February 4, 2015

This & it also can produce higher temps for a little while until it is.

But could that really result in going from 35-37 to 70 within 10 seconds?

SkilledRebuilds · February 4, 2015

But could that really result in going from 35-37 to 70 within 10 seconds?

Probably not... but I can't say for sure either...

35>70.... idle or load?

Sif your at 35-37 under load before...... Seems dodge.... even light loads would push it into the 40-50*c area...

^Not saying your a liar,.. but load temps like that would require some major voodoo magic!

If your idling at 70*c then yeah... needs to be sorted out...

But you've done it three times right... how did you apply it?

(Pea/Rice/Line method? <--as they call it) or did you flatten it out and spread it...?

ItsDenn · February 4, 2015

Probably not... but I can't say for sure either...

35>70.... idle or load?

Sif your at 35-37 under load... Seems dodge....

If your idling at 70*c then yeah...totally needs to be sorted out...

35 idle, 70 load after less than 10 seconds if I dont stop the program (any game) it will go far above that pretty fast

SkilledRebuilds · February 4, 2015

35 idle, 70 load after less than 10 seconds if I dont stop the program (any game) it will go far above that pretty fast

Mine used to go to 72*c and top out about that...

With fresh paste I could forsee it going towards 80*c maybe, but doubtful it would go into danger zones...

Unlike yours, you give the impression of ...towards 90-100*c by the way your worried about it...

Using Default fan speed profile, or your own more aggressive custom one..?

Idea Spitballin....Maybe you used too much paste and it's inhibiting transfer?

ItsDenn · February 4, 2015

Mine used to go to 72*c and top out about that...

With fresh paste I could forsee it going towards 80*c maybe, but doubtful it would go into danger zones...

Unlike yours, you give the impression of ...towards 90-100*c by the way your worried about it...

Using Default fan speed profile, or your own more aggressive custom one..?

Idea Spitballin....Maybe you used too much paste and it's inhibiting transfer?

I just checked it another time it doesnt really seem like I put too much on it, I will just leave my pc running for tonight hoping it will 'settle' i will report back to you guys in about 12 hours Thanks for the help though

Lotus · February 4, 2015

Considering they're supposed to go up to 90 easily, 70 is fine.

However it sounds like your application of paste and/or reattchment of the heatsink was not done quite right.

The thermal pads would only be wrong if you somehow got different thickness. They cool the VRMs and memory, not the GPU cores. They'd only affect the GPU cores if they were in the wrong position and so somehow preventing the heat sink from making proper contact with the GPU.

ItsDenn · February 4, 2015

Considering they're supposed to go up to 90 easily, 70 is fine.

However it sounds like your application of paste and/or reattchment of the heatsink was not done quite right.

The thermal pads would only be wrong if you somehow got different thickness. They cool the VRMs and memory, not the GPU cores. They'd only affect the GPU cores if they were in the wrong position and so somehow preventing the heat sink from making proper contact with the GPU.

Well I dont know what could have gone wrong, it may be the paste I am using, do you guys have any suggestions? I have heard the mx 4 is quite good I dont know if it conducts electricity though as that would seem a bad idea to use on a gpu if so.

marioo1182 · February 4, 2015

The 7950 has a hot running chip.

It is entirely normal for that card to get up to 70 degrees. The max temp manufacturer specified is 85 degree. So you're completely safe.

Start up an intensive game, DONT close it, and see what temperature it gets up to. Then report back here.

Also have you overclocked?

LabRat · February 4, 2015

when I apply paste ( any paste ) I spread it thin by hand. the "pea" method doesn't spread evenly and I have found "gaps" or very small pockets once in a while that don't get covered and create a hot spot per se.

my favorite paste was the white stuff that used to come with theraltakes duorb. After that/zalman super thermal grease. both of these are almost a liquid like.

did you make sure the heat sink fit properly before installing the hold down hardware?

there isn't a wire keeping it from sitting flush?

you did remember to hook the fan wires back up for the card?

ItsDenn · February 5, 2015

The 7950 has a hot running chip.

It is entirely normal for that card to get up to 70 degrees. The max temp manufacturer specified is 85 degree. So you're completely safe.

Start up an intensive game, DONT close it, and see what temperature it gets up to. Then report back here.

Also have you overclocked?

I know it is a normal temp, but while gaming it goes up 80 C wich is 10 C higher than it did before, and the fans spin up like crazy which is extremely annoying.

I havent overclocked.

ItsDenn · February 5, 2015

when I apply paste ( any paste ) I spread it thin by hand. the "pea" method doesn't spread evenly and I have found "gaps" or very small pockets once in a while that don't get covered and create a hot spot per se.

my favorite paste was the white stuff that used to come with theraltakes duorb. After that/zalman super thermal grease. both of these are almost a liquid like.

did you make sure the heat sink fit properly before installing the hold down hardware?

there isn't a wire keeping it from sitting flush?

you did remember to hook the fan wires back up for the card?

there is only 1 wire and that is the one of the fans which doesnt interfere with anything. And yes I remembered to plug it back in.

ItsDenn · February 5, 2015

Personally I think it may be the quality of the thermal paste, I did a bit of research (i know i should have done it before I replaced the thermal paste) and found out the stock thermal paste on the vapor x is already pretty good quality so now what I have to do is to buy some good quality thermal paste.

EDIT: Yeah okay I am pretty sure its the thermal paste this stuff says 1,93 W/mK on it. Whereas the mx4 for example says 8,5 W/mK I am ordering it now.

Edited February 5, 2015 by ItsDenn

LabRat · February 5, 2015

I gotta tell ya', I ordered a couple of tubes of MX-2 a while back. When I tried to use it it never stuck to the top of the cpu. It seemed somehow to be repelled by metal and also wouldn't spread right.. Sounds strange I know. ( almost hydrophobic like )

marioo1182 · February 6, 2015

I know it is a normal temp, but while gaming it goes up 80 C wich is 10 C higher than it did before, and the fans spin up like crazy which is extremely annoying.

I havent overclocked.

Have you dusted out your fan? Also take a temperature node and check, you may be getting false temperatures inside of Windows.

Sandvich · February 6, 2015

^^^ This and report back when you get the new thermal paste.

Mew · February 6, 2015

In my experience with my 7950, it's a very cool running chip. Even with it overclocked to 1ghz and +20% powertune, it'll hover around 65C with auto fan control in battlefield 4 with max details at 1080p. In League of Legends, I'm usually around the 50's. Room temperature is around 15-20C. I did change the thermal paste from the supposedly good PowerColor one to MX-2 a couple months ago.

Edit: Right now with room temperature at 20C, these are my temperatures:

To apply thermal paste, I just squeeze a small amount out and just try to detach it onto the ihs or die and then I just put it hsf back on.

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7950 overheating

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