hmm der link den ich da angegeben hab ist wohl nicht so richtig;
aber der Tipp der auf der Seite von ATI stand half auch nicht bzw die Funktion die dort angegeben war existier in meinem BIOS nicht
hier auf jeden Fall noch das was auf der ATI- Page steht:
System hangs, VPU Recover errors or corrupted display when using ATI PCI-Express graphics cards in ASUS Motherboards
The information in this article applies to the following configurations:
ATI RADEON X300/X600/X800 series PCIe graphics card
ASUS Intel 915/925 or nForce4 based motherboard
In some instances, when PEG Link Mode is set to a value other than Slow within the BIOS setup, users may experience system instability resulting in graphics corruption, video memory or VPU Recover errors.
ASUS has recently introduced a new BIOS feature called PEG Link Mode. This feature is available for both AMD and Intel based motherboards and allows the user to increase the engine and memory clocks on the graphics card.
The five user configurable options are:
Auto
Slow
Normal
Fast
Faster
By default the feature is set to Auto, which is the same as "Normal". However, the Normal setting still slightly overclocks the video card by almost 8%.
The PEG Link Mode value must be set to "Slow" in order to disable the overclocking feature, and allow for proper functionality. To set the PEG Link Mode to Slow, please refer to the steps below:
Enter System BIOS
Open Advanced menu -> open the Chipset menu
Locate PEG Link Mode
Change setting to Slow