8800GTS Water Cooled

[tsinc80697]

Posted a reply in the overclocking thread but no replies yet so I thought a thread might be a better option!

I had a Asus 8800 GTS 512mb running on air, using the stock cooler at 800 / 2000 / 2200. Ran it for 2 weeks perfectly, in games, ATi Tool, 3DMark03/05/06. Never had any problems.

I had an EK88GT block so I thought I would put the GPU into my water setup. It was stable at 3.7ghz with idle temps of high 30s and load temps of 60s. Prime load that is.

I put the GPU in the loop and turned everything back on, the monitor was turning off every 30seconds and staying off. So I powered down the PC, took the water block off the GPU and re-did it. This time the PC turned on and now stays on.

According to RivaTuner it idles at 45c at stock speeds, it seemed fine but having just played TF2 for an hour or so the PC crashed. I rebooted and started TF2 again, it crashed again. So I am assuming it is overheating even at stock levels!

I used AS5 on the central part of the GPU and the supplied thermal pads on the smaller parts. I was told AS5 isn't the best thermal paste to use so I am ging to order either Arctic Silver Ceramique or some Coollaboratory Liquid Pro which in tests is the best performing thermal paste/liquid.

Have I put the GPU block on incorrectly? Too tight or do I need a lot more thermal paste than a CPU ? I put on the same amount I would on the CPU.
If I take the water block off the GPU can I still use the thermal pads or do I need new ones, as I was only supplied with enough for 1 application!

Thanks for any help as its driving me crazy!

Also would swapping the Thermochill 120.2 for an XSPC R120-T be beneficial? Bought some Silverstone FM-122 fans as well which should be an improvement on the Antec TriCool fans hopefully!

 

[RaiderX]

what cpu do you have?

 

[tsinc80697]

Q6600 G0

 

[setter]

tom are you using the gainward 8800gts, ive copied and used your settings for benching ( if you dont mind) i have my e6600 at 3.2ghz, with the fan settings for the card i have to stick it on 100% when im benching, in 3d mark 06 i get 13600 or there about, i look forward to seeing your results under water, thinking about a quad cpu myself. good luck

 

[tsinc80697]

Using an Asus 8800 GTS and I will be testing a PNY one the week after this as I have one waiting for me at another address!

I get 16500~ in 3DMark06 with the quad and GTS, pretty sure I can get over 17k once I get this bleeding thing sorted!

 

[setter]

im gonna get a quad 6600 go, but im currently waiting on a new 780i mobo from evga, im at 157 in the queue, have all the parts from the 680 packed and ready to go, just have to get the email and then dismantle my current baby which ill say ill miss, been good to me, clocks like a dream, had this e6600 at 3.4ghz on 1.4v. its a board you had to persevere with but it was a nice challenge

 

[tsinc80697]

And today the computer doesn't even want to work!
Managed to get into windows then the screen had all blue lines going across it then crashed :/

 

[Neal]

have you tried the stock cooler again?

seems odd, as it worked at good clocks at stock. perhaps a hot spot from bad contact witht he water block? causing the issue maybe.

pain in the ar*e to put the stock cooler back on, but could help to show if its cooling issue or a borked card.

 

[tsinc80697]

Yeah think I'm going to do that now, pain in the backside but its worth checking the card still works!

 

[tsinc80697]

Looks like its to do with the GPU water block / me putting the water block on incorrectly then!
Put the stock cooler back on, reapplied thermal paste and its running at :