I've got a fairly old Radeon 8500 and its having a few problems. When i try and play any decent game (in terms of graphics) such as Soldner, Far Cry, Battlefield. It is guarenteed that as soon as the game starts to load the menu or within a minute of play starting it will crash out to the desktop with a message saying that ATI control panel has restarted the graphics card. Then the game exits and im back at the desktop with 16 colours and a restart needed to fix.
The card has been overclocked but has an old 386 HSF on it which moves plenty of air and also there are some ram sinks. But i've tried taking the card back to the original speeds but still the same problem.
Any suggestions?