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Strange noise when in 3D apps?

Sep 20, 2006
457 (0.11/day)
System Name The Terminator.
Processor Intel i7 950 3.06Ghz.
Motherboard Asus P6X58D-Extreme
Cooling Stock.
Memory Corsair 6GB (3x2GB) DDR3 2000MHz Dominator-GT Memory Kit CL8 (8-9-8-24) 1.65V
Video Card(s) Sapphire HD 6950 2GB GDDR5.
Storage WD 1TB 3.5" SATA-III 6Gb/s / OCZ Vertex 120GB SSD.
Display(s) 24'' Widescreen Samsung 1080p.
Case Antec 1200 Gaming Case.
Audio Device(s) Realtek.
Power Supply TX 650W Corsair
Software Windows 7 Enterprise 64 bit
Getting a slightly strange noise when im running games. It sounds like the noise of a small fan, as if it was slightly catching something, its quite faint but only occurs when there is something being rendered on screen. For example, if the game stutters/hitches for a second while loading textures, the sound will stop, then start again once the render is done. If i minimize to desktop the noise stops, then immediately it will start again once i alt+tab back into the game. Its like a fan/buzzing noise.

I'm assuming its possibly something to do with the graphics card, i dont think its the fan though as i dont see why that would stop and start? Could it be something to do with the voltage/clocks kicking in? I think i vaguely remember this issue with my old ATi card.

Everythings running fine, its just an irritating noise which im possibly over-analyzing since its a completely new system.
Aug 2, 2008
776 (0.22/day)
in retarded hell
probably your gfx card or PSU making that sound - mine used to be the PSU (squeal) replaced it and now get what sounds like a faint scratchy sound like you say, hardly audible (benching) and when playing a game = inaudible. coils.