I reflashed my Bios with Winflash to change the fan speed.(I got in trouble last time I did this). No problems today and I used the look up table option so the speed would ramp up as temps increase.

Mostly the temps stayed in the 60's when loaded and the fan was running at 37 percent. I left the voltage alone.

First I tried raising the core clock and I got to 885 and the system locked. I had tested at 875/900 for about 5 minutes and didn't see any artifacts just before raising it to 885 and crashing.

Next I wanted to see how far the memory would go so I left the GPU at 800 and started ramping up the memory. I was surprised at how well this card clocks especially after initial reports on the 4870 indicated that it wouldn't be a good overclocker. This time the memory went to 1210 before my sceen started breaking apart. I ran at 800/1200 loaded for about 5 minutes with no visible artifacts.

I think I can easily run at 850/1150. I'm going to load Crysis on this machine and see how it does. This machine is on a DFI motherboard with an Opty 185 at 2.75 Ghz. I had to RMA my P5e Motherboard and won't be able to test with my q9450 until I get a new motherboard. I have a 790i machine but I dont want to load ATI drivers on that machine.

It seems like everything works easier with XP than V64 so maybe I can get my Bios the way I want it with XP before I put the card back on the P5e. I am still just amazed at how fast this card will clock. It is tempting to add a little voltage, but I've already had one scare with this card and would like to actually play a few games with it. I've mostly just been testing and fixing so far.