Originally posted by: hoppa
I'm reinstalling Vista (again) and going straight to the 9.1s. I just want this to work I know it wont though. Life is cruel. If this doesn't work I'm going back to XP pro, I'm going to keep the card. The sheer amount of google results for "vista 4850 bsod" is staggering. Many many forum posts just like this one.
I have 2 4850's and running vista right now. At first it was a single card, and now Im running a pair of 4850's in crossfire and have yet to have any problems at all with my system, and Im not using the new 9.1 driver yet either. I have a antec 550watt sli psu running a tv tuner, both 4850's, a LG HD DVD/BR/Burner, samsung burner, amd 6000+ 120 watt am2+ cpu, 4 sticks of pc800 ram, 2 keyboards, 2 mice, tablet, pc camera, 3 120mm fans, and 3 hard drives. I also build computers, and there are a few reasons for your problem, one is a weak psu, which you say is new and has enough power, though I have bought new stuff and had them not work right. Another problem is a hardware conflict and or software, but the fact it boots into safe mode has me thinking it may not be either of them. Another reason can be a poorly pasted cpu and or gpu which will cause massive heat in full boot mode, if not seated properly or lapped properly it will cause heat spots on the die, which can cause problems and work half ass. Computers are wierd and in the hundreds Ive built Ive seen all kinds of things that made me go "WTF, ok, so it was because it didnt like my sound card", which I have had many Creative card make my systems go all crazy, CLSO, lock ups, restarts out of no where, shut downs, just crazy shit cause by a lousy sound card.
So as I mentioned before you need to see where the volts are at in bios, you never did say what bios is showing as the volts other then they are steady. You also need to rip everything out and turn off everything but just the bare hardware to get the computer to boot. And if it does then you can sorta pinpoint what it was you had installed that was actually causing the problems. And should you go back to P and its still acting up then you will know for sure that it is a hardware issue and not a software problem. Considering both os's install pretty quick it can be an easy place to start at and go further provided you volts are not below where they need to be when you check in bios.