For anyone who is interesed, I have modded the 4850 MSI bios....not only have I raised clocks and voltage under load, but I have improved on the powerplay feature as well as the fanspeeds. IMO this is how it should have been shipped from the factory...it is a bit loud while gaming and such but this way the cooler is actually effective!:
Originally Posted by gurusan
The fan will only go down to around 25% in idle and 2d clocks, but it's pretty much inaudible and during 3d clocks should keep it under 70c full load, more like mid-low 60s.
All the reference 4850s should be able to do this, but if you are getting crashes then I can make you up a slightly less aggressive profile, or you can edit it yourself with the RBE tool. I recommend stress testing with rthdribl and some Crysis benches.
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