Tom's Hardware > Forum > CPU & Components > Power Supplies, PC Cases & Case Mods > Will this PSU run an HD 4770

Will this PSU run an HD 4770

Forum CPU & Components : Power Supplies, PC Cases & Case Mods - Will this PSU run an HD 4770

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El_Mayo   10-16-2009 at 06:35:08 PM

My PSU is a 350W
with 9a on the 12A rail
will i be able to use an HD 4770?

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Bronze CPUs badge WR2   10-16-2009 at 07:04:05 PM
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You didn't say what other hardware is also getting power from the 350W PSU.
It's well below the 450W PSU recommended by Sapphire for it's 4770 cards.
Even more of a concern is the 9A +12V rail. Most 'average' 350 PSUs will have 19A or better +12V rating.
I've seen $10 budget 250W PSUs with more than 9A.

If that 9A is accurate and you're powering a normal PC set up I'd say you probably can't run the 4770.

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Bronze CPUs badge WR2   10-16-2009 at 07:08:19 PM
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Here is the data panel off a $10 PSU. It's claiming 29A of +12V (348 divided by 12)
http://images17.newegg.com/is/image/newegg/17-159-043-S04?$S640W$

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Silver CPUs badge JohnnyLucky   10-16-2009 at 08:44:52 PM
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The official ATI recommendation for a pc system with one ATI Radeon HD 4770 video card is 450 watts. That's 50 watts less than what I usually recommend because it is an energy efficient card.


Message edited by JohnnyLucky on 10-16-2009 at 09:13:05 PM
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