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Old 12-06-2007, 01:55 AM   #1 (permalink)
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Default which Corsair PSU should i pick?

ok so im almost done in choosing all my parts to purchase 2 weeks from now. My plan is to get an HD 3870 x2 when it comes out, n another later. I recently decided on getting the 520w no doubt, but after looking at pics of the HD 3870 x2 again from this thread a while back, i noticed that it requires a 6pin n 8pin connector to run one card, which neither the 520w, 620w, nor 650w carries, only the 750w!

3870xt and 3870x2 Pictures

so for me to save money i found a 4pin to 8pin converter about $3.50 w/o. If i get the 520w or 620w, then i can just get the converter for one card, n another when another with a second HD 3870 x2. I personally want to go with a 620w to be on the safe side, but if u guys really think the 520w can handle 2 HD 3870 x2s, then so be it.

here r the differ PSUs n converter i found:

CORSAIR CMPSU-750TX ATX12V / EPS12V 750W Power Supply 100 - 240 V UL, CE, CB, TUV, FCC, CCC - Retail
Newegg.com - CORSAIR CMPSU-750TX ATX12V / EPS12V 750W Power Supply 100 - 240 V UL, CE, CB, TUV, FCC, CCC - Retail

CORSAIR CMPSU-620HX ATX12V v2.2 and EPS12V 2.91 620W Power Supply 100 - 240 V UL, CUL, CE, CB, FCC Class B, TUV, CCC, C-tick - Retail
Newegg.com - CORSAIR CMPSU-620HX ATX12V v2.2 and EPS12V 2.91 620W Power Supply 100 - 240 V UL, CUL, CE, CB, FCC Class B, TUV, CCC, C-tick - Retail

CORSAIR CMPSU-520HX ATX12V v2.2 and EPS12V 2.91 520W Power Supply 100 - 240 V UL, CUL, CE, CB, FCC Class B, TUV, CCC, C-tick - Retail
Newegg.com - CORSAIR CMPSU-520HX ATX12V v2.2 and EPS12V 2.91 520W Power Supply 100 - 240 V UL, CUL, CE, CB, FCC Class B, TUV, CCC, C-tick - Retail

APEVIA 9.5" 4 Pin P4 /12V to 8 Pin P8 /12V Power Supply Converter Cable Model CVT48 - Retail
Newegg.com - APEVIA 9.5" 4 Pin P4 /12V to 8 Pin P8 /12V Power Supply Converter Cable Model CVT48 - Retail
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Old 12-06-2007, 03:59 AM   #2 (permalink)
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Default Re: which Corsair PSU should i pick?

go for the 620hx. I believe u will need the power especially if you want to overclock your system. ati cards usually have a high energy consumption. once the official specs are released you will see anyway.
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Old 12-06-2007, 12:02 PM   #3 (permalink)
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Default Re: which Corsair PSU should i pick?

Yeah the 620watt one would be more suitable the the 520hx, but if you want to be on the safe side the 750tx is the same price as the 620 after rebates.
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Old 12-06-2007, 12:02 PM   #4 (permalink)
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Default Re: which Corsair PSU should i pick?

Quote:
Originally Posted by baron5 View Post
go for the 620hx. I believe u will need the power especially if you want to overclock your system. ati cards usually have a high energy consumption. once the official specs are released you will see anyway.
the 650w is there too but didnt post it. U say i should get the 620w along with my other parts for Christmas, n then get the 4pin to 8pin converter when the HD 3870 x2 comes out?

if so then ill do it. I just need to make sure which PSU to choose from when the HD 3870 x2 comes out is all, n im rebuilding my whole system this Christmas.

EDIT:

here is the 650w PSU from Corsair:

Newegg.com - CORSAIR CMPSU-650TX ATX12V / EPS12V 650W Power Supply 100 - 240 V UL, CE, CB, TUV, FCC, CCC - Retail

i could get this one, but a lot of ppl say the watts dont matter, only the amps on the 12v rails do, but then is having a single worse then having 3? Only the 520w has 3 12v rails.

EDIT 2:

the 650w PSU has 2 x 6pin+2, thus having 2 8pin options. I would still have to get the 4 to 8pin converter if i get a second HD 3870 x2, so i would have to say the 650w is gonna be most likely my best choice.
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