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Are 720W enough for HD6950 Crossfire?

post #1 of 46
6/26/12 at 10:27am
Thread Starter 
Hi, I'm making a gaming PC, these are all the components:

Vengeance 1x4 1600Mhz

CD/DVD Reader

SD reader

Intel i5 2500k

NZXT Tempest EVO (six fans, 4 leds I think)

Cooler Master 612S

Asrock z68 Extreme4 Gen3

Samsung 830 64GB

HD 7200 rpm

Sapphire HD 6950 Dual Fan x2


ENERMAX Pro80+ 720W (I pay it 87$)

Has this PSU enough power? Or I shold buy some other? I can pay it 100$.
I live in Italy, and prices are higher than in USA...
Edited by Piereligio - 6/26/12 at 10:30am
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post #2 of 46
6/26/12 at 10:33am
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It should be enough considering I am running 2 295's off of a 750w and 6950's are much more power efficient.
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post #3 of 46
6/26/12 at 10:41am
Yea. I run them off a DA750 that is over 4 years old.
Along with my 970 @ 4.2GHz.
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post #4 of 46
6/26/12 at 10:46am
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Oh, yeah, I forgot to say that I will OC the 2500k, to 4.5 or 5 ghz... Can I be sure that I won't break something? I made a test with the Extreme Outervision calculator, it says 650W minimum, reccomended 700W. Is it a good calculator?
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post #5 of 46
6/26/12 at 1:08pm
Your planned system would be fine on a good 650 watt PSU, so yes, you're fine.
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post #6 of 46
6/27/12 at 11:31am
Thread Starter 
Erm... sold out... I've to choose an other one. I seen the Aerocool VP 750w, that isn't 80plus but has more watts...


These are the specs:

Model VP - 750

Power 750W

Standard ATX 2.3, EPS 12V - 2.92

Fan 120x120x25mm

PFC Active

Protections: Overcurrent Protection (OCP), Overvoltage Protection (UVP), Short Circuit Protection (SCP), (OPP)

Connections
1 x ATX 20+4pin
1 x 4+4pin
5 x 4pin ATX
2 x PCI-Express 6+2pin
1 x FDD
6 x SATA

Ampere
24A on +3.3V
24A on +5V
25A on +12V1
25A on +12V2
0.5A on -12V
2.5A on +5VSB

Combined Power
150W on +3,3V / +5V
600W on +12V1 / +12V2
6W on -12V
12.5W on +5Vsb
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post #7 of 46
6/28/12 at 2:14am
Thread Starter 
Please, answer me. I need an answer because the Enermax cost much more on other sites, something like 130$.
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post #8 of 46
6/28/12 at 2:43am
Nope, the VP750 is an overrated Andyson unit with horrid cabling/connectivity... don't buy that.

Link the shop/s you're buying from and give us your budget in the local currency.
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post #9 of 46
6/28/12 at 2:51am
Thread Starter 
I'm buying from eBay.it, e-key.it and overclockers-store.com . My budget is 70€.

EDIT: I can also buy from amazon.it .
Edited by Piereligio - 6/28/12 at 3:06am
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post #10 of 46
6/28/12 at 3:20am
You'll have to stretch your budget a little but it can't be helped... this is the cheapest quality unit I could find close to your budget, that also comes with sufficient PCIe connectors for the CFX setup... on the bright side, it's better than your initial Enermax pick. wink.gif
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