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High temp on water-cooled GPU? - Page 4

post #31 of 44
10/29/12 at 3:11pm
My money is on bad mount. It happened to me before. Temps were quite similar to what you have. I knew it wasn't the block because luckily I have two cards to test it out. No matter what block I used, I still got high temps in one of the cards. Then, I noticed that it was the screws I was cutting up for the EVGA backplates. As one of them was too long and preventing the water block and the GPU from making a full contact. Fixed it and idle at ~20C, max out ~40C on two cards. Good luck.

Perhaps, it's your PCI-E connector the one that's under the acrylic top?
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post #32 of 44
10/29/12 at 4:34pm
Thread Starter 
Quote:
Originally Posted by PTCB View Post

My money is on bad mount. It happened to me before. Temps were quite similar to what you have. I knew it wasn't the block because luckily I have two cards to test it out. No matter what block I used, I still got high temps in one of the cards. Then, I noticed that it was the screws I was cutting up for the EVGA backplates. As one of them was too long and preventing the water block and the GPU from making a full contact. Fixed it and idle at ~20C, max out ~40C on two cards. Good luck.
Perhaps, it's your PCI-E connector the one that's under the acrylic top?

I checked, no dice frown.gif
I really think a spacer will be the answer here. Waiting to hear back from XSPC.
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post #33 of 44
10/29/12 at 6:39pm
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Quote:
Originally Posted by Powermonkey500 View Post

The temps have settled down slightly. Now it's hitting about 66C.
I'm not sure if it's TIM burn-in or the air temp. I think MX-4 isn't supposed to need burn-in time though.
My AC and heating are off, though, so that may be contributing (it's cold outside).
I emailed XSPC to ask for assistance:

If really it is bad contact, and answers take time before they reach you for the possibility of a shim, then Shin-Etsu X23 is a very good "bad" contact TIM.

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post #34 of 44
10/30/12 at 7:14am
Thread Starter 
Rep all around.
I'll give an update once XSPC replies. Hopefully I don't have to resort to "bad" contact TIM.
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post #35 of 44
10/30/12 at 11:09pm
This is EXACTLY what was happening with mine. I had to layer more TIM for it to work. A light layer doesn't work!

This is how I knew. Apply the TIM and then mount just with the 4 screws around the GPU. Then take it off, you'll notice there block has no paste on it.

Trust me, just layer on the TIM paste and it will be fine. I'm not sure it's something with machining or whatever at XSPC but there might be a small gap there.

Once I get my 2nd GTX 680, I'll redo the paste with PK-1. The XSPC supplied paste might not be as good.
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post #36 of 44
10/31/12 at 1:30am
It's hard to say here. Your total rad space is 400mm but both of the rads are slim format. What kind of fans are you running? Are you sure you have enough airflow for the slim rads and your heat output?

This should give you a rough idea: http://martinsliquidlab.org/pump-and-radiator-optimizer-spreadsheet/

Sounds like you are looking into the contact with the GPU which is good.

It'll be interesting to see how this turns out.

Good luck! thumb.gif
Edited by pgdeaner - 10/31/12 at 1:33am
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post #37 of 44
10/31/12 at 5:10am
Thread Starter 
Quote:
Originally Posted by XViper2 View Post

This is EXACTLY what was happening with mine. I had to layer more TIM for it to work. A light layer doesn't work!
This is how I knew. Apply the TIM and then mount just with the 4 screws around the GPU. Then take it off, you'll notice there block has no paste on it.
Trust me, just layer on the TIM paste and it will be fine. I'm not sure it's something with machining or whatever at XSPC but there might be a small gap there.
Once I get my 2nd GTX 680, I'll redo the paste with PK-1. The XSPC supplied paste might not be as good.

Glad to see I'm not the only one!
What kind of temps do you get with layered TIM? I got a good spread but my temperatures are still lacking.
I ordered some 20mm x 20mm x 0.3mm and some 20mm x 20mm x 0.5mm copper shims for only a dollar each, free shipping. I'm going to try them out when they get here and see what happens.
Sounds like a fault with XSPC's new block!

Edit: Links to the shims:
http://www.ebay.com/itm/190692503118?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
http://www.ebay.com/itm/190692493639?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
Edited by Powermonkey500 - 10/31/12 at 5:35am
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post #38 of 44
10/31/12 at 12:39pm
52-53c with layered TIM (XSPC stuff)

I'm interested to see what you get with the shims.
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post #39 of 44
11/6/12 at 12:45am
Hey, I wanted to bring this back. What kind of temps were you getting with the shims? Gonna wait until end of November for some deal on another card.
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post #40 of 44
11/6/12 at 11:52am
Thread Starter 
Unfortunately I have still not received them.
Also, I ordered a 7970 with a water block to replace my 670. (I game at 3648x1152 and I hear ATI is better for high res) I'm still not sure whether I am going to bother testing the shim or not. It's a huge pain to work with my vinyl tubing and to drain and re-fill. I'm 90% certain it will give a good increase in cooling performance though.
Edited by Powermonkey500 - 11/6/12 at 12:16pm
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