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URGENT New Case. Old PSU. Big Problems haha Anyone Help?

Last response: in Components
December 17, 2012 1:28:37 AM

Hey Guys. i recently (Today) got a new computer case. the CM HSF 912 i Think. and ive been having some issues.

i have a crappy diablotek PSu that came with my old pc.
i got a new 200MM Fan and a 120MM on Side.
And i have a Coolermaster N520.

when i take off my GPU it turns on.
when i put it on the mobo it turns off.

im like 99% Sure its the PSU.
Its 450W Btw And on the 12v Rail is 30Amps.
i have 80 Bucks i might want a smaller fan later.

soo can someone just clarify if its my PSU and Maybe Show me one at tigerdirect i can go and buy tommorrow.

Specs. AMD Phenom x6
8 Gb RAM
Amd 6850
a b ) Power supply
December 19, 2012 10:05:19 AM

you are lucky diablotek didnt blow up.

get a good psu like the xfx 550w for 49.99 after MIR at
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December 21, 2012 8:13:11 PM

Haha Thanks Guys. i bought a Antec 620W PSU
a b ) Power supply
December 21, 2012 8:27:47 PM

glad to help :) 
December 21, 2012 8:31:14 PM

Never go on the cheap with PSUs. Only buy cheap PSUs if you want a fireworks display inside your computer case lol (like this, only with a psu)

This may be plain coincidence - but every Antec PSU i've ever bought has died within a week - AFTER the warranty expires. Seasonic and Corsair are usually the way to go.
a b ) Power supply
December 21, 2012 8:35:46 PM

battlefieldhazard said:
well a 6850 has MIN wattage of 500 so yes u do need a new pcu

GPU manufacturers' figures are always grossly inflated since manufacturers have no way of knowing the quality of someone's PSU and the rest of their system configuration. Lousy PSUs often fail to reliably deliver even half their rated power, sometimes catastrophically/spectularly so.

The GPU's real-world power requirement is closer to 150W and if you throw in 150W for the rest of the PC, you only need 300W of real continuous power so a high-quality 380-450W PSU would get the job done.

I wish GPU manufacturers would actually publish their card's REAL power requirement instead or alongside their PSU rating recommendation so people who want to size their PSU the right way would have the REAL numbers they need to do so.
a b ) Power supply
December 21, 2012 8:41:37 PM

i still think its best to be safe with gpu makers minimum wattage recommandation.

regardless if the true power is less.