I've completed my build and installed Win 7 64-Bit and everything seems ok, [although ASUS AI Suite II & ASUS Ai Charger failed to install].
But there is a high pitched whining sound that is definitely coming from the PSU.
It is a CoolMaster 460W Elite Power.
Funny thing is that when I tapped Delete & entered the BIOS, it did not make any whining sound, but when Windows is started up, & when the display changes scenes, or anytime I click any choices with the mouse, the noise temporarily stops for a moment while changes are being made.
But at idle, the whining is consistent.
I turned my monitor off, & it decreased somewhat.
I have only one monitor with a VGA connection right off the MOBO.
Well it's definitely not a great choice for a psu that's for sure.
I've never read a flattering review of any CM psu of the 460W variety.
They've released a few and none deliver their stated power output and are very inefficient by today's standards.70%
Sounds like it's defective i'd rma it if that's possible.
Much better unit in alot of ways.
CORSAIR Builder Series CX430 V2 430W http://www.newegg.com/Product/Product.aspx?Item=N82E168...
I actually had it in my old system for about a year.
I upped the one in there because it was just a measly 380W. It ran fine in that rig.
That was a AMD Athlon x2 64 with a number of peripherals connected and 2 Monitors.
I agree that this one only claims 70% efficient.
I was anticipating a better one for this build, and could always put this one back in my other rig that it came from. I use both computers.
Coil whine in a PSU is quite common. It may go away but probably not.
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