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what is a PWN IC?

post #1 of 7
Thread Starter 
No its not a typo it really is a PWN IC. my VGA cooler mentions it a few times and i haven't got a clue what it is but thermalright wants a ramsink on it. and says its on the back of the G92 8800GT(which i have). what is it and what does it look like?
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post #2 of 7
They mean PWM or VRM.





You want a heatsink to touch the MOSFETS to cool it down.

http://www.geeks3d.com/20100504/tuto...vrm-explained/
post #3 of 7
Thread Starter 
Quote:
Originally Posted by Riou View Post
They mean PWM or VRM.





You want a heatsink to touch the MOSFETS to cool it down.

http://www.geeks3d.com/20100504/tuto...vrm-explained/
oh so they mean these things on the back?



Uploaded with ImageShack.us

that's strange even stock cooler don't touch it, but i got like 6 extra ramsinks so why not right lol?
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post #4 of 7
No it is these row of chips I circled in red. It is on the same side as the exposed GPU die/IHS.



They usually have a heatsink covering it like this card:

post #5 of 7
Thread Starter 
Quote:
Originally Posted by Riou View Post
No it is these row of chips I circled in red. It is on the same side as the exposed GPU die/IHS.

oh okay then I'm good to go BTW thats a non ref 8800 lol

these are going to be enough to keep them cool right? (i have a 150CFM side panel fan)
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post #6 of 7
Quote:
Originally Posted by philhalo66 View Post
oh okay then I'm good to go BTW thats a non ref 8800 lol

these are going to be enough to keep them cool right? (i have a 150CFM side panel fan)
It should be enough to cool. Monitor your VRM temps in an app like GPU-Z. If it gets too hot, you might need to position a fan to blow air directly at the VRMs.
post #7 of 7
Thread Starter 
Quote:
Originally Posted by Riou View Post
It should be enough to cool. Monitor your VRM temps in an app like GPU-Z. If it gets too hot, you might need to position a fan to blow air directly at the VRMs.
there is no temp sensor for memory or VRM on the 8800 GT
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