Can I use a 430w PSU for a graphics card that recommends a 700w PSU?

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Peridot

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Sep 18, 2014
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I have a 430w power supply. The Club3D website says that the Radeon R9 270 14series requires a 700w power supply. Will my power supply cut it?

System specs:
AMD Athlon II X4 760k
Cooler Master 212 evo
Gigabyte GA F2A78M-D3H
Mushkin Silverline 16gb
Club3D Radeon R9 270 14series
NZXT Sentry Mesh fan controller
Corsair CX430M PSU
 
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An R9 270 can potentially draw up to 200w by itself. That would leave, theoretically, 230w for the rest of your system. Your CPU draws up to 100w, leaving 130w for everything else. You can try, but you stand a fairly good chance of something not getting enough power when you hit full load on both GPU and CPU.
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viewtyjoe

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Jul 28, 2014
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An R9 270 can potentially draw up to 200w by itself. That would leave, theoretically, 230w for the rest of your system. Your CPU draws up to 100w, leaving 130w for everything else. You can try, but you stand a fairly good chance of something not getting enough power when you hit full load on both GPU and CPU.
 
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quarrel

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May 14, 2014
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LIke viewtyjoe said, you COULD, it is possible, but I wouldn't want to try. If you get a power spike, or play a resource intense game you could fry something or blow your psw. spend the extra cash and get a slightly more powerful psw. ( I ALWAYS get a few hundred more w when I buy a power supply, not only is that future proofing better, but it is safer)
 
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pbm86

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Jan 9, 2012
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700W is total overkill for that card and CPU. 500W would be enough. The PSU needs to be of good quality and must be able to deliver at least 25A on the 12V rail. The 430W could suffice if it can deliver enough 12V current. That Corsair of yours can deliver 32A on 12V. You don't need a new PSU.
 
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