@Adam: My ASIC is only 87.8%! Haha, I thought that was good. Guess not
Did using the 950mhz edition BIOS lower your VRM temps as it did to mine?
Good question on the 7970 Vapor-X. I've been trying to find what kind of cooling other brands have for the VRM1 and its very difficult. It seems most are barren or cooled by a support beam...
@SonDa5: Well the memory is attached to the primary heatsink. This probably hurts its idle temps only, not load temps. If the heatsink is sitting at around 35c at idle, then the memory should be about 35c as well, while with no heatsink at all it might idle a bit lower. However under load it should be superior to a small, separate finned heatsink like most other coolers.
VRM is separate from memory cooling on this card, which is probably why the VRMs run so dang hot. The other coolers that have a HS covering a large portion of the PCB for memory can handle the VRMs, while this one is too small.
Okay, here is the Sapphire 7970 Vapor-X 6GB PCB
Notice the heatsink for VRM1. It also has the Black Diamond chokes next to it. What is the blue plastic stuff by the power connectors?
Large thermal pad for [VRM2?]
The backplate for this card does not appear to do anything for VRM1.
As for the Sapphire 7970 Vapor-X 3GB -- it's PCB & cooling appear to be EXACTLY the same as ours. 8+6 power too.
Here's some links to other VRM coolers.
Sapphire 7950 FLeX
HIS 7950 IceQ
Looks like if they had made the support bar a little longer or thicker there would be no issues here :/Edited by Derpinheimer - 10/27/12 at 8:50am