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New 7950 - what chips do I need to cool

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looks like a SLot 1 heatsink honestly


Something like that?
 

eidairaman1

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IMO, way too small heatsinks, and thermal tape is so-so.

edit:
Grab a hacksaw and carve into some surplus heatsinks and you'll end up with something like this:
http://img.techpowerup.org/121021/largon-hd4890-custom-vrm-sink.jpg

The VRM areas on my cards are really narrow and surrounded by capacitors compared to the card you show in the picture; that specific heatsink would really need to be trimmed to fit in the area. I would also need to make sure it fits in a two slot width so it can be used in crossfire, but I'm sure it could be cut. The biggest issue I have with it is that I just don't have many spare parts laying around; I generally sell everything I don't use on eBay. If you have a suggestion where I can buy a heatsink like that for a moderate price, I would appreciate it.

edit: There's also conveniently no screw holes to secure a VRM heatsink to the PCB of my card.

On another note, I determined that the crashes I have had are definitely related to crossfire. Both cards work fine individually when crossfire is disabled. And when crossfire is enabled, I get lots of rendering errors and occasional crashes. So I guess that crossfire in Windows 8 is broken. I hope that newer drivers fix this.
 
Last edited:
Joined
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I got a saphire 7970 because it has big vrm sinks.
 
Joined
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I just noticed that ASUS posted a BIOS update for my cards on October 18 that "Improve performance and stability in 3D situation." I'm going to try that and see if it fixes my crossfire stability issues.
 
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