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March 18, 2010 5:43:36 PM

i need help knowing if a 750w psu is going to be enough....

http://www.newegg.com/Product/Product.aspx?Item=N82E168... that power supply with the E5200 cpu o/c to 3.9 with 1.5v and 6led fans (antec 902) corsare H50 and 2 http://www.newegg.com/Product/Product.aspx?Item=N82E168...

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a c 87 ) Power supply
March 18, 2010 5:51:15 PM

Yes it will be enough.
March 18, 2010 6:15:36 PM

Silvune said:
Yes it will be enough.

i kno that grafix card dosnt say how much it will need but i was thinking cuz i read somewhere add it all up so 2 grafix cards at 400w u would need a min of 800w psu
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a c 87 ) Power supply
March 18, 2010 6:41:05 PM

Well, if this is your CPU ( http://processorfinder.intel.com/details.aspx?sSpec=SLA... ), it's TDP is 65W, so overclocking it, so say about 100W for that. The TDP of the 5870 is ~190W, but 400 isn't too far away. 10Ws for fans, harddrives and the Corsair H50. So unless you have 10 harddrives, I will say 100W for everything.
100W + 400W + 100W = 600W And that Antec PSU can definitely provide 600W reliably.
March 18, 2010 6:45:35 PM

For 1 5870 for sure, for 2 i would be more comfortable with Corsair 850
a b à CPUs
March 18, 2010 6:46:54 PM

You'll be fine. 750W can even handle the 5870 in Crossfire.
a c 87 ) Power supply
March 18, 2010 7:51:25 PM

Remember that 600W is under absolute maximum load, which it is hardly ever likely to reach.
March 18, 2010 8:17:33 PM

MadAdmiral said:
You'll be fine. 750W can even handle the 5870 in Crossfire.


what is the best grafix card?? i like this 1 cuz its liquid cooled is there a better one on air?
a b à CPUs
March 18, 2010 8:21:58 PM

Frankly, I would get the HD 5970 over two 5870s. The 5970 is two 5870s on one card. It usually costs $700 (air cooled) vs. $800ish (air cooled) for the two separate cards.

I don't particularly think water cooled is worth the extra $150 per card.
March 18, 2010 9:00:24 PM

MadAdmiral said:
Frankly, I would get the HD 5970 over two 5870s. The 5970 is two 5870s on one card. It usually costs $700 (air cooled) vs. $800ish (air cooled) for the two separate cards.

I don't particularly think water cooled is worth the extra $150 per card.

http://www.newegg.com/Product/ProductList.aspx?Submit=E....

now witch of thoes is better and do u kno a place i would be able to actually get it?
March 18, 2010 9:08:03 PM

coldsleep said:
The one that's in stock is the best one. ;) 

And people are having trouble finding a consistent supply of 5970s all over.

lmao none r in stock
March 18, 2010 9:08:39 PM

so witch of thoes 4 (brans) is the best or most reliable
a b à CPUs
March 18, 2010 10:46:31 PM

Brand doesn't matter. Get whatever is in stock whenever you see it. There is no reason to wait if you ever see one available.
March 19, 2010 6:10:43 AM

Wouldn't it be better to balance your build a bit?

An E5200 with 2x5870/5970? I mean, you are pairing a low end-cpu with high-end GFX cards. You're gonna have some serious bottlenecking there. Why not just get one 5870 and spend some of that cash on a quad core?
a c 80 ) Power supply
a b à CPUs
March 19, 2010 7:22:10 AM

Thank you cobot! I was saying, WTF? $1000+ for two video cards? A water cooling loop? And all powered by a 5200? A dual core chip with 2MBs L2 cache? I'm almost tempted to be an @ss and ask if he's still using his 17" CRT monitor. (THAT would be funny. two 58i70s in CF so that he can play games on his 17" monitor at 1024x768....) If you can find a 5970 for $700, use the saved $300 for a new quad core CPU. I'd also seriously consider buying only one 5870 and a quad as well.

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a c 124 ) Power supply
a c 180 à CPUs
March 19, 2010 2:40:28 PM
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You only need 600 watts for your twin cards....and that's a conservative rating since it comes from the guys offering the warranty :) 

http://www.amd.com/us/products/desktop/graphics/ati-rad...

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)

If you are sticking w/ water cooling, use a PSU calculator to figure in the load from the WC system

http://www.antec.outervision.com/

Note the 5970's clock (725-735) is way lower than your original selection's 875 .... an air cooled 5870 is usually 850 ....before you OC it :) 

The 5970 requires a 650 watter....if ya think ya might want to XFire it, an 850 would be in order:

For comparison purposes , the list of 850 watters below contains performance ratings (10 scale) at jonnyguru.com / prices as per newegg on 02/21/2010 and ones w/ double asterisks (**) made it onto silentpcreview.com's Editor's Choice List meaning they excelled at both electronic and acoustic performance:


Antec SG-850 - 10.0 ($220) **
Antec CP-850 - 10.0 ($110) ** (only fits in Antec 1200, P183, P193 and DF series cases)
XFX 850W Black Edition 10.0 ($185)
Corsair HX850 850W - 10.0 ($180)

Antec TruePower Quattro (TPQ-850) - 9.5 ($150)
Corsair TX850 - 9.5 ($140)
Seasonic M12D 850W - 9.5 (NLA) **
NorthQ Giant Connector 850W - 9.5 (NFS)
Etasis ET850 - 9.5 (NLA)
Silverstone Zeus ST85ZF - 9.5 (NLA)

Enermax Revolution 85+ 850W - 9.0 ($250)

Thrmaltake Toughpower XT 850W - 8.5 ($216)
OCZ Z Series 850W - 8.5 ($200)

NorthQ Black Magic Flex 850W - 8.0 (NFS)
Coolmax CTG-850 - 8.0 (NFS)

SilverStone Decathlon DA850 - 7.5 ($230)
Enermax Galaxy DXX 850W EGX850EWL - 7.5 (NFS)

SilverStone Strider ST85F - 7.0

Silverstone Element ST85EF 850W - 6.0


NFS - Not For Sale / NLA = No Longer Available




Here's the list for the 650 watters:


Antec Signature 650W (10.0) OOS **
Seasonic X-650 650W (10.0) $160 **
Silverstone Olympia OP650 (10.0) NFS

Thermaltake Toughpower QFan 650W (9.5) NLA

Antec Earthwatts EA650 650W (9.0) $75

Antec True Power Trio 650W (7.5) NLA

XFX XPS 650W XXX Edition Power Supply (7.0) NFS

Antec NeoPower Blue 650W (6.5) NLA

BFG BFGR650PSU 650W (6.0) NLA

NorthQ Black Magic Flex 650W PSU (5.0) NFS

NFS - Not For Sale / NLA = No Longer Available / OOS - Out of Stock
March 29, 2010 11:39:11 PM

Best answer selected by shawnlove.
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