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High temps on WC gpus?

W

wasteomind

Gawd
Joined
Aug 13, 2004
Messages
522
I just installed a second loop into my system for my gpus. It consists of:

XSPC dual bay res/pump combo (mcp655 pump)
XSPC RX480 4x120 rad
8 Gentle Typhoon AP-15 in push/pull
2x XSPC Razor gtx 680 water blocks

The only thing in the loop are my two GTX 680 reference models. This should be over kill for them however I feel like the load temps are high.

Room ambient = 20c
Idle = 24-25c
Load = 43-48c (top card) and 50-55c (bottom card)

The loop follows the same general flow most others do :
Res/Pump > Rad > Gpu 1 > Gpu 2 > repeat

Most other load temps I have read about are high 30s low 40s on sli and tri sli systems. The only thing I can think of is that I used the included XSPC generic TIM when installing the blocks. It wouldn't make that big of a difference would it?
 
Usually there is only a couple degrees difference between the cards if they are in series. Check your TIM.
 
The 48*c is normal. I put money on it that if you pull off the GPU block on the 55*c card, you will see that its not covering the entire GPU on that 680.

The same thing happened to an SLI build I did for a customer a couple of weeks ago.
 
Do not use the K-2 TIM that is included with the XSPC, I did it with mine and had temps from 55-60 on my gtx 690. I re-mounted and use some MX-2 and now both GTX 690's on full load are 40-45. BIG difference.
 
Nexillus said:
Do not use the K-2 TIM that is included with the XSPC, I did it with mine and had temps from 55-60 on my gtx 690. I re-mounted and use some MX-2 and now both GTX 690's on full load are 40-45. BIG difference.
Click to expand...

I upped my overclock and gpu voltage a bit and was seeing temps of almost 60c on the bottom card and around 50ish on the top card. This seemed excessive to me so I took your suggestion.

Picked up some MX-4 and reTIMed the blocks. After that and refilling and bleeding the system my cards have not past 40c in Heaven extreme settings in over 35 mins. Top card is around 37c and bottom 40c on load with the overclocked and increased voltage settings. Also have my push/pull fans at half speed getting these temps to cut down noise. This is a massive difference from what I was seeing before.

Thanks for the help.
 
Last edited:
You could also set the cards up in parallel. Then the temps should be nearly identical.
 
Jorona said:
You could also set the cards up in parallel. Then the temps should be nearly identical.
Click to expand...

^This

I've got my cards in parallel and all temps nearly mirror themselves, except for a slightly gimped middle card...but that's a hardware issue not related to the water setup.
 
Jorona said:
You could also set the cards up in parallel. Then the temps should be nearly identical.
Click to expand...

I assume to do this I would need to connect the two ports marked with red arrows and move the bottom outlet to the spot marked with the blue/yellow arrow?

autplzu.jpg


If that's all I need to do I was thinking of grabbing some sli connectors, but I'm struggling on what size to get. I'm measuring about 42-44mm assuming I'm measuring from the correct location?

n0zAJ72.jpg
 
wasteomind said:
I assume to do this I would need to connect the two ports marked with red arrows and move the bottom outlet to the spot marked with the blue/yellow arrow?

If that's all I need to do I was thinking of grabbing some sli connectors, but I'm struggling on what size to get. I'm measuring about 42-44mm assuming I'm measuring from the correct location?
Click to expand...

Yes, that's what you'd do to connect in parallel and no your not measuring from the right locations lol. Here is what I used:
http://www.frozencpu.com/products/1...Spacing_BP-CLTAC-S2.html?tl=g30c101s873#blank

Scroll down on that page and its also got the radio button options to choose the different styles of connectors. If you don't notice it in the pictures, you will when you get them, but the tubes don't clamp into anything either, it seems a bit crazy but there are rubber O-rings inside the connectors that seal the tube. I've been using them for a couple years now without issue...here's what they look like in use:

gputower.jpg


I know the angle makes it a bit difficult to tell but those are reference design 6970s, so they are spaced out every other slot (Cards in slow 1,3,5)
 
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