Originally Posted by wr3ck3dm1nd
Hey I noticed you also have the same setup I have. I seem to be experiencing a BSOD in games after about 10 mins of playing (heating up to about 50-55c on the core). I was wondering if you have experienced this at all. The only things i can come up with are the VRM's arnt being properly cooled, or direct x 11 is crap. I did notice after careful inspection that my VRM-G2 wasnt actually making any contact on one of the rows so I had to double up the thermal tape. What are your thoughts?
Never had a BSOD with my card, do those still exist in Win7? I have had an occasional "driver has stopped responding but has recovered" error pop up, but very rarely. I doubt VRM cooling is the issue here, especially with a properly installed VRM G2.
When you say there is no contact between your G2 and "one of the rows", do you mean contact with the six R125 inductors/chokes (larger grayish tall boxy things closer to the GPU)? Those normally don't run that hot, they don't even have thermal pads on them in a reference GTX480/580. VRM G2 manual doesn't tell you to put thermal tape on them at all, and they don't make direct contact with the heat sink.
You do want to make sure that the 18 MOSFETS (smaller darker flatter rectangles farther from the GPU) have good contact with the heatsink through thermal tape. MOSFETS dissipate most of the heat generated by the VRMs as a whole.
Here are some good pics of GTX 480 VRMs, 580 is very similar: http://www.geeks3d.com/20100504/tuto...m-explained/4/
I've read a report on Xbit that the thermal tape is pretty bad for conducting heat and that by using a decent thermal compound you can drop the VRM temps by 30 or more degrees. Of course, the downside is the mess you'll make with the thermal paste and potential clearance issues if you eliminate the thick thermal tape. Haven't tried this personally, but here's the link: http://www.xbitlabs.com/articles/coo...pitfire_6.html