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2x4870, i7: Recommend me a PSU?

Forum CPU & Components : Power Supplies, PC Cases & Case Mods - 2x4870, i7: Recommend me a PSU?

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cdnchemist   06-03-2009 at 04:17:04 AM

Hey guys,

I'm building a new core i7 system with one 4870, and plan to crossfire in the future. Any recommendations on a solid PSU? The build is looking like:

Intel i7 920 D0
2x Radeon HD4870 (Xfire)
Asus P6T
6GB OCZ Platinum 1600
Antec 900
WD 500GB 7200RPM HD
Xigmatech Dark Knight
Random Optical Drive

I've been looking at the PCP&C 750W, but I've been wondering if I should go with Corsair's 850W instead. Other recommendations are welcome as well. Thanks in advance!

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r_manic   06-03-2009 at 05:02:20 AM
- 0 +

You might need that much power. Go with a 650W PSU instead. Have you tried playing around with the PSU calculator?

------------------------------ Desktop | E7300 | P5KPL-AM | 2GB DDR2 667MHz | NVIDIA 9500 GT | ST3320613AS | w2228h
XPS M1330 | T8300 | Dell 0U8042 | 2GB DDR2 800MHz | NVIDIA 8400M GS | WD2500BEVS-75US | 1280 x 800
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theAnimal   06-05-2009 at 12:08:52 AM
- 0 +

I'd go with the Corsair.

------------------------------ *How To Ask For New Build Advice*
HAF 922 | HX750
Rampage2Gene | i7 920 D0 | 6GB Gold 1600 | Hyper 212+
Caviar Black 640GB | HD3870
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bildo123   06-05-2009 at 06:03:57 PM
- 0 +

This would fit the bill.

4x 6+2 Pin PCI-E power connectors. Technically for under $100 after the rebate, instant off rebate, and free shipping.

Just found thisas well. 80+ Certified as well. Still under $100 with promo.


Message edited by bildo123 on 06-05-2009 at 06:39:56 PM
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shiftstealth   06-06-2009 at 07:35:16 AM
- 0 +

Hmph, im running sli gtx 280's with the 650W corsair, you could try that but you dont wanna skimp if you plan on getting a 3rd 4870.

------------------------------ http://valid.canardpc.com/cache/banner/588938.png
http://www.speedtest.net/result/468703490.png

 

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Bronze CPUs badge cjl   06-06-2009 at 07:36:20 AM
- 0 +

The Corsair 750 would be a great choice, as would the 850.

------------------------------ Asus P6T deluxe
i7 965 @ 4.2GHz (200*21), 1.384V
12GB Corsair Dominator DDR3-1600 CAS 7
 Reply to cjl
strike-eagle   06-19-2009 at 09:59:04 PM
- 0 +

Hi!

Will this http://www.antec.com/Believe_it/product.php?id=NjU 500W PSU be enough, If I bought only one hd4870. I am planning to buy a very similar pc set like cdnchemist but I am not sure of the PSU.

Antec Sonata III case comes with that PSU and it's quite cost effective. Of course I could buy that Sonata case with no PSU and buy more powerful PSU but it would not be so cost effective.

Thank you, I hope you will reply!

Message quoted 1 times
Reply to strike-eagle
The_Blood_Raven   06-19-2009 at 10:08:28 PM
- 0 +

cdnchemist wrote :

Hey guys,

I'm building a new core i7 system with one 4870, and plan to crossfire in the future. Any recommendations on a solid PSU? The build is looking like:

Intel i7 920 D0
2x Radeon HD4870 (Xfire)
Asus P6T
6GB OCZ Platinum 1600
Antec 900
WD 500GB 7200RPM HD
Xigmatech Dark Knight
Random Optical Drive

I've been looking at the PCP&C 750W, but I've been wondering if I should go with Corsair's 850W instead. Other recommendations are welcome as well. Thanks in advance!



The PC P&C 750w will ravage that system and more. It is slightly higher quality than the Corsair 750TX and every single one has been stress tested before being put on the shelf so a DOA is almost impossible.

Reply to The_Blood_Raven
The_Blood_Raven   06-19-2009 at 10:09:18 PM
- 0 +

strike-eagle wrote :

Hi!

Will this http://www.antec.com/Believe_it/product.php?id=NjU 500W PSU be enough, If I bought only one hd4870. I am planning to buy a very similar pc set like cdnchemist but I am not sure of the PSU.

Antec Sonata III case comes with that PSU and it's quite cost effective. Of course I could buy that Sonata case with no PSU and buy more powerful PSU but it would not be so cost effective.

Thank you, I hope you will reply!



That power supply will do fine with a single 4870.

Reply to The_Blood_Raven
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