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Water cooling GTX 660 TI, VRM temp high what can I do?

post #1 of 9
Thread Starter 
Just finished hooking up my WC system and started testing my graphics cards, I can't believe how cool the GPU core runs...35C after 10 minutes under EVGA stress test. Was around 75C before with the stock cooler. (and it was loud as heck)

I'm running a pair of EVGA GTX 660 TI 3 gig SC cards, which I'm overclocking (+60 core, +180 ram, 122% power). At least that's the OC I could get before, but now I see it's only drawing slightly under 100% power with my OC, before it was near max...I'll try to push it harder later, but for now......

I have 1 concern, if anyone can help...see pictures below:




The silver heat sink is OEM, didn't remove it. I assume that's the VRM (right?) it gets really hot....I don't have a laser temp probe at home, but just by feel I think it's in the high 60-70C range. Should I be concerned? And if so, what can I do to help cool it down?
post #2 of 9
Get some air flow going between those cards.
This is why we have full cover blocks
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post #3 of 9
Thread Starter 
Full block was like $140 + 31 for back plate, so $171 for WC for a 660 TI card....Cost of the card + WC gets me real close to price of a 780...
post #4 of 9
I believe the target VRM temperature is below 85C, so if it's really at 60-70, then you should be fine. Although I would recommend a fan blowing between the cards as mentioned above.
post #5 of 9
Thread Starter 
Yea, I guess have no choice but to mount a fan somehow there....I've already spent around $1000 for WC my PC, not willing to dish out another $350 just for the GPU's.
post #6 of 9
Yeah. In future always try to go full block. I know that would have put the price up into 780 GTX range but WC is a massive money pit. A properly WC'd GTX 660 is going to cost the same as properly watercooling a Titan more or less.
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| Intel Core i7 | 2600K | 4.2GHz @ 1.33v | | ASUS | Maximus IV Extreme | | ASUS | ENGTX 580 | 933MHz @ 1.138v | 2-way SLI | | G.Skill | RipjawsX | 2133MHz | 8GB | 
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| Intel | 510 SSD | 120GB | | Western Digital | Caviar Black | 1TB | | XSPC | Raystorm | | XSPC | Razor 580 | Dual SLI | 
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| Acer | P243W | 1920 x 1200 | | Enermax | MODU87+ | 900W | | CaseLabs | M8 + Pedestal | 
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post #7 of 9
Quote:
Originally Posted by JacekRing View Post

Full block was like $140 + 31 for back plate, so $171 for WC for a 660 TI card....Cost of the card + WC gets me real close to price of a 780...

Yep, WC is expensive but can F you up trying to do it on the cheap. I have a 670 block sitting around doing nothing since I changed cases. Still waiting on getting some nice rads to fit in my MATX case.
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post #8 of 9
I cut my heat sink in half and only use one fan after mounting the water block, now I have to mount some heatsinks on the main vrm's and should be good, I had 2 660's sli and the top one was always 10 degrees hotter
post #9 of 9
Get a bigger air sink for your Vreg if you can get one and train a fan on it.
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