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How big power suply

Forum CPU & Components : Power Supplies, PC Cases & Case Mods - How big power suply

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Super1473   10-12-2009 at 12:38:30 PM

I'm buying computer with i7-920 processor and two HD 5850 graphic cards (one now, one later) and connect them by Crossfire, I also will have 6 Gt of 1600 Mhz ram. How powerful power suply do I need?

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jimishtar   10-12-2009 at 12:50:06 PM
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I would get 650W at least, since u are a big spender, it would be great to get ~850W psu, it will last for years to come.

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JackNaylorPE   10-12-2009 at 01:26:08 PM
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I'd recommend a Corsair HX-850 or Antec Signature Series 850 at the top end .... if that's a bit pricey, next step down ore the TX and TP series.

------------------------------ If a man speaks in the forest and no woman hears him, is he still wrong ?
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Silver CPUs badge JohnnyLucky   10-12-2009 at 02:27:16 PM
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Here are the official power requirements for the brand new ATI Radeon HD 5850 and HD 5870 video cards.

ATI Radeon™ HD5850 System Requirements

PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard
• 500 Watt or greater power supply with two 75W 6-pin PCI Express® power connectors recommended (600 Watt and four 6-pin connectors for ATI CrossFireX™ technology in • dual mode)

ATI Radeon™ HD5870 System Requirements

• PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard
• 500 Watt or greater power supply with two 75W 6-pin PCI Express® power connectors recommended (600 Watt and four 6-pin connectors for ATI CrossFireX™ technology in • dual mode)




Message edited by JohnnyLucky on 10-12-2009 at 02:27:34 PM
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