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hearing a high pitched whine coming from computer?


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hello, whenever i turn on my pc i hear this very odd, and unhealthy sounding high pitched whine, going up and down in pitch. a little after booting into windows it can die down, or stop, but if i was to start up a game, it starts up again, getting much louder, and sounding very bad, as it changes pitch. i have also started to get game crashes in the past day or two, and wanted some help. ive had no system crashes, only crashing to desktop from games, and i wondered what it could be. my main thoughts are either PSU or HDD, but wanted some input from you guys. thanks a lot!

my specs:

Ram: 1333MHz RAM Speed, CAS 9-9-9-24 Timings, 1.5v VDIMM, Lifetime Warranty with Corsair.

Processor: Intel Core i5-3570K 3.40GHz (Ivy Bridge) Socket LGA1155 Processor £155

Motherboard: MSI Z77A-G43 Intel Z77 Socket 1155 DDR3 PCI-Express Motherboard £80

Graphics Card: MSI HD 7870 Black Knight OC 2048MB GDDR5 PCI-Express Graphics Card [R7870-2GD5T/OC] £180

HDD: 500GB Seagate Barracuda ST500DM002 3.5" SATA III Hard Drive £40

Case: Cooler Master Elite 430 Black Midi Tower Window Gaming Case £40

PSU:600W Corsair Builder Series 600CX 80PLUS Bronze Power Supply £50

DVD burner: Samsung SH-118AB/BEBE Black 18x SATA DVD ROM - OEM £10

OS: windows 7 home premium

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okay so i have an update. after listening, i can hear a very high pitched whine from turning the pc on coming from the HDD. but once i start up a game, i hear the weird whines also come from either one of three fans (they are to close to tell), and the whine sounds like a toned down version of the classic dial up tone. i have no idea what any of this means lol

Edit: but as soon as i shut off the game, even if i alt f4 as soon as it starts up, then noise stops almost instantly

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It's called coil whine and could be one caused by a number of things and could also be coming from your GPU. It's not going to hurt anything as far as damaging other components or anything. Just annoying depending on how loud it is.


But if you could make a sure determination that it is coming from the PSu ,you could have replaced.

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