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Old 02-02-2009, 04:14 PM   #1 (permalink)
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Default Power Supply unit question

I'm wondering if this power supply will be sufficient:

Newegg.com - CORSAIR CMPSU-850TX 850W ATX12V 2.2 / EPS12V 2.91 SLI Ready CrossFire Ready Active PFC Power Supply - Power Supplies

Running an intel I7 920 processor, 6GB DDR3 RAM, two Radeon 4870 in Crossfire mode.

My buddy at work says you need 1000+ watt power supply to crossfire those cards, that seems a bit extreme to me though. Will this work?

edit: Nothing Overclocked yet

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Old 02-02-2009, 04:49 PM   #2 (permalink)
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Default Re: Power Supply unit question

Yes it would. Personally though i would go with this one instead:

Newegg.com - PC Power & Cooling S75CF 750W EPS12V SLI NVIDIA SLI Certified (Dual 8800 GTX and below) CrossFire Ready 80 PLUS Certified Active PFC Power Supply - Power Supplies

This one would suit you well, and its a bit cheaper. But if your a bit worried then the Corsiar 850w will be more than fine for you.

You buddy at work doesnt know what hes taking about. You would only ever need 1000w for maybe quad-fire.

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Old 02-04-2009, 04:14 PM   #3 (permalink)
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Default Re: Power Supply unit question

Yer buddy is smoking rocks. Read my sig. The 750tx is a monster. And i can only assume the 850 is the same with 10 more amps to play with. I also run watercooling and a 4.5ghz i7 920

I'm buying this badboy though, so i can go tri-sli
PROVANTAGE: Cooler Master RSB00-AAAAA3-US 1100W Ucp Power Supply Multi Rail 80 Plus Silver Cert
Nothing to see here.
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Old 02-04-2009, 05:06 PM   #4 (permalink)
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Default Re: Power Supply unit question

Originally Posted by veedubfreak View Post
The 750tx is a monster.
^ I can verify that
Desktop i5-4440 - ASRock Z77 Extreme4 - EVGA GTX970 - 4x4GB 1600MHz - Samsung 850 EVO 250GB - Be Silent Base 800 - 3TB+1TB+1TB+640GB
Laptop i7-3740QM @ 2.7GHz, 2x4GB 1600Mhz, GT640M, OCZ Agility 3 120GB
Smartphone Galaxy S7 Edge

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