So for a while now I've noticed this sort of real high-pitched whistling coming from my computer...I had always assumed it was my graphics card since it only occurred during the most strenuous gaming. But since I upgraded to my current config (in my sig) from 2x8800GT's and an OC'd Q6600, when the whistling gets louder the system just shuts off, with no blue screen or anything. But it's inconsistent: playing Crysis or Crysis Warhead will make it whistle (crysis Warhead actually has it whistling in just the intro logo videos), and the 3D video benchmarks in the PC-Matic tool make it whistle and then shut off, but I can play Civilization 5 for hours with no problem, as well as Splinter Cell Conviction, and regular usage or just HD movies have no effect either.
So then I bought a power supply tester and everything passed except the +3.3V rail, which displayed as having higher than 4.5V. The power supply is an OCZ GameXstream 850W unit that's 80Plus certified and SLI-ready (I know not to buy cheap PSU's). Anyways, I'm wondering if this is a fatal flaw or if there's something I can do to lock it down to a lower voltage.
So then I bought a power supply tester and everything passed except the +3.3V rail, which displayed as having higher than 4.5V. The power supply is an OCZ GameXstream 850W unit that's 80Plus certified and SLI-ready (I know not to buy cheap PSU's). Anyways, I'm wondering if this is a fatal flaw or if there's something I can do to lock it down to a lower voltage.