700mhz wall on HD4850 is smashed.

[DemonEyez]

Thats good news, thanks gurusan and DemonEyez for the info, am still scared about the stories flying around about dead cards but i will be getting a Gainward HD 4870 by next week. What type of ram heatsinks are you guy using or how are you cooling the mem chips?

I'm using swiftech ram sinks on the chips and the vregs. Also got a 80mm pointed at them:



I'm experiencing a problem. Sometimes my screen will just go black and the system hangs, sometimes it gives me a BSOD of some atidag file.
It's totally random, most of the time during browsing in internet explorer.
this happens with 1.32v on the core doing 820MHz which is totally stable (passes 3dmark, crysis and atitool 10 minutes). any ideas? I get the idea it happens when the card is switching from low 2d to high 3D and the other way round.