Sudden spike in GPU and memory clock causing high temp Tags: Graphics Cards Memory Graphics Last response: February 18, 2013 5:05 PM in Graphics & Displays Share nitanoonoo February 17, 2013 8:19:28 PM Hello. I have 2 HD 4870 running in crossfire and as of today they are both experiencing higher temps only by a few degrees so im not too worried about that. But the second card seems to run hotter than the first. Not only this but the GPU and memory clock are stuck at 775 Mhz and 950 Mhz respectivly which may seem to be the cause of the higher temps. The figures are showing even at default settings and don't change when i switch defaults. Any ideas???? I dont really want to uninstall as yet but if i have to i will but hope theres another answer. One more thing, I did swop them around yesterday i.e the top one is now bottom and vice versa but i dont see this being a problem. Cheers Phil. AS pro 4m 2X 4gb Integral ram i5 3570 2 X HD 4870 More about : sudden spike gpu memory clock causing high temp nitanoonoo February 18, 2013 5:05:16 PM Never mind. started game back to normal now. Can't find your answer ? Ask ! Publish Related resources SolvedMSI R9 290 high temps and gpu activity spikes Forum Low gpu clock and high memory? Forum Will high gpu/memory clocks in 2d mode dmg card? Forum More resources Read discussions in other Graphics & Displays categories Ati GPUs Graphics Cards Gtx HD Monitors SLI Crossfire Tuner Cards Radeon Video Diamond Multimedia Matrox Nvidia Palit PowerColor Asus Games !