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Crossfire HD 4870x2? Requirements? Bottleneck? - Page 2

post #11 of 25
Quote:
Originally Posted by goldboy View Post
I would recommend a 1000w psu - they are not that expensive
Your kidding right?

@OP you could do with a 750w Corsair AX series or a Antec truepower or high current gamer series.
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post #12 of 25
Thread Starter 
Quote:
Originally Posted by nbmjhk6 View Post
Your kidding right?

@OP you could do with a 750w Corsair AX series or a Antec truepower or high current gamer series.
Is that for 2 of the x2 or just 1?

I have OCZ 750W Fatal1ty Series Modular - would this not work with ONE card?
post #13 of 25
Quote:
Originally Posted by RagingAzn628 View Post
Is that for 2 of the x2 or just 1?

I have OCZ 750W Fatal1ty Series Modular - would this not work with ONE card?
It can handle one (maybe) OCZ is a bad psu brand so don't get 2 of em. you need a 800w psu for quad CFX with them.
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post #14 of 25
Quote:
Originally Posted by nbmjhk6 View Post
Your kidding right?

@OP you could do with a 750w Corsair AX series or a Antec truepower or high current gamer series.
750w? Yea if you want your computer to shutdown due to lack of power.

850w at the absolute minimum.
post #15 of 25
Thread Starter 
Quote:
Originally Posted by scatteh316 View Post
750w? Yea if you want your computer to shutdown due to lack of power.

850w at the absolute minimum.
ATI website said 650w >.<
post #16 of 25
These draw ~130w per GPU. You've got 4 so you're looking at 520w just for the GPUs.

A quality continuous 750w at least for an overclocked CPU, ram, hdds, fans etc. Still, 850 would give you a little more headroom.
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post #17 of 25
Thread Starter 
Other than the PSU, my CPU and MOBO is fine for this beast? Like I said I might go all out and buy these for a full SB Upgrade!

http://www.newegg.com/Product/Produc...82E16813157240

http://www.newegg.com/Product/Produc...82E16819115072

Any other recommendations?


Quote:
Originally Posted by justarealguy View Post
These draw ~130w per GPU. You've got 4 so you're looking at 520w just for the GPUs.

A quality continuous 750w at least for an overclocked CPU, ram, hdds, fans etc. Still, 850 would give you a little more headroom.
I'm talking about just ONE for now in my current rig. Cross Fire in SB rig ;p
post #18 of 25
Quote:
Originally Posted by LOL_Wut_Axel View Post
Yes. Most people seem to be kinda overstating the power requirements of a 4870X2. It only requires a quality 550W for single and a quality 750W for dual. This card doesn't draw too much power.
Thanks, looks like I can go 4870 x2 quadfire and rule!
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post #19 of 25
Guys take it from me 850w or more for Quad-fire.

And atleast a 3.8Ghz CPU.
post #20 of 25
Thread Starter 
Quote:
Originally Posted by scatteh316 View Post
Guys take it from me 850w or more for Quad-fire.

And atleast a 3.8Ghz CPU.
How about SINGLE 4870x2?

Also according to your sig you upgraded from a 6950?
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