I just put together the system below, and I am finding that the temps on my two 5850's are running around 70 C at idle and get hot enough to shut down the system under load unless I turn up the fans on both cards to 100%. Even then, the temps hover around 91-93 C when I'm running Half Life 2 with the settings cranked all the way up at 1920x1200. Considering that the cards come pre-overclocked from Sapphire, is this normal or is there something I can do short of watercooling to get the temps down a bit so I can reduce the fan speeds (and the noise!)
Corsair 800D Case
Silverstone ST1000-P Power Supply
Asus P6X58D-E Motherboard
Intel i7-930 Processor
6GB Crucial Ballistix Tracer DDR3 1600 memory
2 x 128GB Crucial SSD in Raid 0
Seagate 500GB HD
2 x Sapphire Toxic HD-5850 2GB video cards in CrossFire configuration
Sony Optiarc DVD Burner w/Light Scribe
Prolimatech Megahalems CPU Cooler w/ 2xGelid FN-FW12-15-B 120 mm fans in push-pull
4xScythe S-Flex SFF21E case fans
2 x HP ZR24w monitors
Based on what I'm seeing I'm guessing the card in PCI slot 1 isn't getting enough air since the second card is in PCI slot 2. The MB has a PCI slot 3, and I *think* the bios allows me to configure the PCI to have X16 on slots 1 and 3. I'm sure that would help, but I'm not sure I can fit the the second card in slot 3 since there are a lot of MB connectors it would have to sit on top of. I'm guessing this is what you would have me try though, correct?
Thanks a bunch, I'll give that a shot and see how it goes. Will putting the second card in an 8x slot as opposed to a 16x slot have a significant impact on my performance? I'm guessing not since I'm only running at 1920x1200. If I have to do this to fix the temp issue it's pretty much a moot point though.
That solved my problem! The new temps are significantly less at around 50 C on the main card. Thanks for the help OvrClkr, I didn't know about the Afterburner app and it was very useful. Here's a shot with the new temps...