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6800GT+VF700 temps too high?

post #1 of 12
Thread Starter 
I just put a vf700-cu on my 6800GT and I am wondering why I am not seeing a decient drop in my temps. With the stock cooler my card idled at 54c and loaded at 70~75c depending on ambient temperature. With this new cooler it idles at about 55c and loades at 71c, not much of an improvment. I didn't have any AS5 so I installed it with the stuff that came with it. Are these temps normal or have I mabe done something wrong?
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post #2 of 12
idle temps generally stay the same, so the 4-5c drop in load temps with standard thermal paste is about right,with as5 it should drop another 5-7c i would have thought,you could also check its seated correctly and nothing it hitting it,maybe remove and clean both and reseat it again,but as5 would be best and should get you the temp drop your after..good luck
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post #3 of 12
Thread Starter 
Thanks for your help, I'll go pick up some AS5 tomarrow, might as well replace the AS3 on my cpu heatsink with AS5 while I'm at it any way.
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post #4 of 12
Quote:
Originally Posted by N!nj@
Thanks for your help, I'll go pick up some AS5 tomarrow, might as well replace the AS3 on my cpu heatsink with AS5 while I'm at it any way.
Those temps are HORRIBLE, both stock and load. I'd take a serious look at your case airflow. Do you have both intake AND exhaust fans inside your case?
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post #5 of 12
http://www.daionet.gr.jp/~masa/rthdribl/

Here is a great graphics demo you can run while watching your temps in the nvidia desktop.

On a BFG 7800GTX OC, my idle temps (it comes factory overclocked) at stock, dropped from 41-42C down to 35-36C. Full load (run the above demo for 5 or 10 minutes!) and my temps dropped from 72C to 56C, using AS5 with the Zalman VF-700CU.
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post #6 of 12
Thread Starter 
I actually have very good airflow in my case. I have 4 80mm intake fans all pushing ~32cfm and 3 80mm exhaust fans also pushing ~32cfm. I also have a pci exhaust fan that sucks hot air out of the bottom of my case pushing about 20cfm. I think mabe I just need some artic silver 5. Also, I noticed that the bottom of the heat sink had noticible ridges that I could feel with my fingernail, perhaps a good lapping is needed.
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post #7 of 12
Quote:
Originally Posted by N!nj@
I actually have very good airflow in my case. I have 4 80mm intake fans all pushing ~32cfm and 3 80mm exhaust fans also pushing ~32cfm. I also have a pci exhaust fan that sucks hot air out of the bottom of my case pushing about 20cfm. I think mabe I just need some artic silver 5. Also, I noticed that the bottom of the heat sink had noticible ridges that I could feel with my fingernail, perhaps a good lapping is needed.
Ya, if it's not smooth to the touch, lap it. Your temps should drop quite a bit. You're running a lot higher than average.
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post #8 of 12
lapp it reall good with some 1200 grit paper.. get it mirror smooth, then use the as5 and your temps should be dramatically lower
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post #9 of 12
Thread Starter 
Ya, lapping it is sounding like a good idea, only problem is I might not know when to stop, I'm kinda dumb like that. I lapped my cpu heat sink about a year ago and it droped my temps a fair ammount, so I would assume this would do the same thing. I'll post my results when its done.
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post #10 of 12
its easy, just use do it like you did with your cpu, but when you get to 1000 or 1200 grit paper, just stop when its evenly smooth and shiny, then your done... clean it, and mount it....
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