Is this an Overloaded PSU?

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dosmastr

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Jan 28, 2013
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whenever 3dmark is rendering on the screen my psu makes wierd noises....It almost sounds like a hdd reading but the test is installed on my SSD
The pus is a brand new antec earthwatts platinum 450watt.

according to http://www.extreme.outervision.com/psucalculatorlite.jsp

I should only need 329watt min, with 379 recommended.
E2180 pentium dual
Radeon hd7790 OC 1075Mhz by Asus.
3gb ddr2 (4 sticks)
2x 1tb wdc 7200rpm sata hdd
1x 500gb seagate 7200rpm sata hdd
Crucial m500 480GB ssd
2x dvd/cd-RW
Antec earthwatts Platinum 450watt PSU

OEM motherboard from gateway.

I'll have a video uploaded soon.

Is this just the active PFC doing its thing or?
 
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dosmastr

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Jan 28, 2013
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I just upgraded both the psu and my GPU.
The old psu was a Delta 300watt (came as oem in my gateway pc)
The new one is listed above
Old video card was a radeon 7770.

http://www.hwcompare.com/14300/radeon-hd-7770-vs-radeon-hd-7790/

tdp isn't much different, I'd be surprised if power consumption was more than 150watts higher... the old psu handled everything just fine, I just wanted a more efficient model, and was able to pickup the 7790 for cheap so why not upgrade.

EDIT: more info. Initially I thought it was a fan slightly rubbing something but I stopped them all with my hand (even the cpu -- live on the edge!...it only runs like 100rpm when at idle so i knew there wasnt a risk)

Video showing it is here:
http://youtu.be/MThyXL1IYUg
 
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dosmastr

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Jan 28, 2013
191
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antec is saying its a cap in there suffering overload from the gpu (which is said to require a 500 watt supply, he said that but I can't find it anyplace... I DID find that it requires a max of 150watts.... 12V line right? so 12.5 amps... each rail of the supply is supposed to be good for 30.
 
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