Originally Posted by Ov3R-ClOck3D
ok i tried flashing the new x800xl bios again using flashrom and this command "flashrom.exe -p 0 x800xl.bin" and it gave me this...
"x800xl.bin" File open error
ERROR OFLO1: Press '1' to continue"
Okay, it sounds like you're just randomly flashing bioses at the moment. All these different bioses are made for the x8x00 series but they have different cores. The x800xl for example has an r430 core that isn't compatible with an r423. The X850 range have an r480 core etc etc.
The best way to find out what you need to flash is to remove the heatsink, clean off the thermal grease on the core and see what is written on it. You'll need some more thermal grease (pref Arctic Silver 5) to put it back together again. When you have this info, post back and I can run you through the bios that is best to flash.
I think you said that you still have your old bios. If you do, try flashing back with this using ATIFlash instead of the flashrom and hopefully you'll have some success.