hi, I have 2 asus 5770's in crossfire and my ambient temp is 32*C (Philippines' tropical weather goes up to 37*C in summer), the main card idles at 47*C and the other one at 43*C. are these normal temperatures? I've read that these cards should run cooler than this.
I haven't OCed the cards.
I have a x16/x4 pcie2.0 mainboard and planning to upgrade to a x8/x8 so that the cards would get equal load and pull out better performance. will my temps go lower when I upgrade?
crysis all maxed: the main card would run at 92*C I know that 2x5770s can barely handle crysis with everything maxed.
CoD:WaW all maxed: runs at about 77*C (safe temp)
resident evil 5 all maxed: variable benchmark runs at about 83*C (relatively safe temp)
furmark: keeps on rising and exceeds 92*C, I stop the test when this happens. (dangerous temps)
Do I have a bad card?
maybe the thermal paste doesn't do a good job?
Power supply problem?
I've updated to the latest drivers.
I have a HAF X case (great airflow case) I even installed the gpu fan shroud (case accessory) directly in front of the 2 gpus with a 120mm fan.
thanks in advance.
EDIT: offtopic: is the cooler master v8 good? I'm planning on buying one for my i5-750 so I can overclock
now I think it's because of a poor finish on the Cucore. I found someone having a similar problem have a look at this (scroll down to the middle of the page) I'm thinking of lapping it too once I get a hold of a good thermal paste. hopefully I will get better temperatures.
As for the smaller raised part on the heatsink, it is meant to only be large enough to fully cover the main core, and not the full chip, so I wouldn't recommend touching it. It needs to have good pressure against the core to do its job well.
As for my recommendation on thermal pastes, top-notch is IC Diamond, second would be Arctic Silver Ceramique, both would be a great upgrade from stock paste.