When the monitor turns off after some minutes, the graphic card's fan starts stopping and working every 10-15 seconds that makes loud noise because of the fan's first time working.
It's a problem when the graphic card goes to ZeroCore. How to fix it?
Graphics Card: Sapphire Radeon HD 7770 GHz Edition
AMD Catalyst Driver Version: 12.10
Operating System: Windows 7 x64 SP1
Motherboard or System Make & Model: Gigabyte B75M-D3V Rev. 1.1
Power Supply: Enermax NAXN 450W
Display Device(s) and Connection(s) Used: Samsung P2270 DVI
CPU Details: Intel G620
Motherboard BIOS Version: F10
System Memory Type & Amount: 2x4GB Kingston DDR3 1333 CL9