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I need a new PSU

Last response: in Components
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January 8, 2012 11:57:15 PM

CPU: AMD Athlon II x3 435 unlocked to AMD Phenom II x4 b35 (overlocked from 2.9 GHz to 3.5 GHz)
HDD: 2 SATA Drives (RAID)
RAM: 4 GB @ 1333 MHz
GFX: 5770 CF (overclocked to 900/1350 each)

What PSU would I need? How much watts do I require? How much on the 12 volt rail?

Here are some websites I can buy from:

ncix.ca
canadacomputers.com
tigerdirect.ca

More about : psu

January 9, 2012 2:01:49 AM

For that sort of system you would want around 50 AMPS (600 Watts) on the 12 Volt Rail to play it safe.

edit: I would go with the OCZ. It's got the most amperage on the 12 volt rail.
edit 2: give this one a look. I know its more expensive, BUT, it may go on discount like some of the other PSU's listed (Including the OCZ I chose from the list you provided)
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a b À AMD
January 9, 2012 3:19:27 AM

opckieran said:
For that sort of system you would want around 50 AMPS (600 Watts) on the 12 Volt Rail to play it safe.

edit: I would go with the OCZ. It's got the most amperage on the 12 volt rail.
edit 2: give this one a look. I know its more expensive, BUT, it may go on discount like some of the other PSU's listed (Including the OCZ I chose from the list you provided)

lmao 50a. you could run 2 x 6950's off that. more realistic would be 40a.
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a c 92 ) Power supply
a b À AMD
January 9, 2012 3:43:36 AM

Do the math guys. 110W * 2 = 220W for the GPUs. Unlocked and OC'd CPU, say another 150W? Toss in another 50W or so for the drives, ram, board, etc and you get 420W for the whole computers 12V draw. 420W / 12V = 35A. As crowe said a good 40A unit should be fine so you have enough breathing room. The Corsair you linked would be fine.
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a c 1203 ) Power supply
a b À AMD
January 9, 2012 3:44:14 AM

For a system using two Radeon HD 5770 graphics cards in 2-way CrossFireX mode AMD specifies a minimum of an 600 Watt or greater power supply. The power supply should also have a combined +12 Volt continuous current rating of 35 Amps or greater and have at least two 6-pin PCI Express supplementary power connectors.

Stay away from the Azza, Topower and Visiontek.
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a c 275 ) Power supply
a b À AMD
January 9, 2012 4:16:39 AM
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