i just recently bought the R9 270 oc edition and ive read that the cards temp is usally at 60 to 70c under load and about 30c when over clocked. well i over clocked it and did a stress test with fur mark and it was almost hitting 90c im runnng 2 cards in crossfire mode my case is well ventilated i dont have the cards bunched up they are using the 1 and 3 pcie slot on the mobo so they have more than enough room to breath. i saw an article here on this site but cant find it. they were talking about the thermal paste being an issue. i just bought the cards so i dont wanna void the waranty to redo the paste. any onw what the safe zone for this card is??