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Seasonic X750 With a GTX 460 SLI build

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July 29, 2010 8:28:36 PM

Hello;

I have been working on a new build and I have a question to ask about the power supply. Is the Seasonic X750 powerful enough to support my proposed rig? Below is the parts list for the proposed rig.

PSU: Seasonic X750
Motherboard: GIGABYTE UD5
CPU: I7 930
Memory Crucial 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333
GPUs[proposed]: GTX 460 X 2

Things you should be aware of:

I have read this forum thread: GTX 460 1 Gb SLI on 700w??. However, I noticed that the answer to that thread reads like: "That should work". What I would like to know in particular - and this is a question that I feel the related thread fails to answer to my satisfaction - is why this power supply will or will not work with my proposed build(i.e. my power supply simply does not have enough amperage/wattage/pwnage/etc... to drive these components).


Any help you all can provide would be very much appreciated.

TIA
a c 274 ) Power supply
July 29, 2010 8:32:53 PM

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Yes a 750w is more then enough power for two 460's.
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a b ) Power supply
July 29, 2010 8:37:54 PM

Absolutely, that Seasonic is a good quality PSU like Corsair. There are some 750w PSU's that would be suspect but that Seasonic is not one of them, let it rip and happy gaming!
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July 29, 2010 8:41:50 PM

Thanks for the quick replies guys!

Just stopped in here to double check what I was already pretty sure I knew. If it wasn't good enough I would have likely just swapped it out for a corsair 850W PSU like what I have in my current rig - the only reason I need a new PSU is I have other plans for the old rig after I build the new one.
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Best solution

a c 139 ) Power supply
July 29, 2010 8:43:33 PM

You can't always compare apples and oranges.
Or a $60 46amp +12v 700W PSU to a $150 62amp +12v 750W PSU.
He already owned that PSU. You get to pick the PSU of your choice.

Your Seasonic choice will get the job done easily.
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July 29, 2010 8:53:34 PM

WR2 said:
You can't always compare apples and oranges.
Or a $60 46amp +12v 700W PSU to a $150 62amp +12v 750W PSU.
He already owned that PSU. You get to pick the PSU of your choice.

Your Seasonic choice will get the job done easily.



Thanks for taking the time to reply.
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a c 248 ) Power supply
July 29, 2010 9:09:55 PM

I was going to post the link to the technical review of the X-750 over at jonnyguru.com but WR2 beat me to it. I just read that review yesterday evening.
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a b ) Power supply
July 29, 2010 9:11:27 PM

You really cant get a better 650-850W PSU than the X-750. In fact, it might be the best PSU out there, maybe only seconded by the AX-1200.
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July 29, 2010 9:22:44 PM

WR2 said:
A 2nd opinion on that PSU: Seasonic X-750 Gold 750W review @ JonnyGuru


JohnnyLucky said:
I was going to post the link to the technical review of the X-750 over at jonnyguru.com but WR2 beat me to it. I just read that review yesterday evening.


Timop said:
You really cant get a better 650-850W PSU than the X-750. In fact, it might be the best PSU out there, maybe only seconded by the AX-1200.


Yeah I knew the X-750 was a great power supply. Was planning on using it ever since I read the Anandtech Review a while back. At the time I was planning on a build centering on two 5770s. When I decided to up the game to two GTX 460s - a significant jump in required system power(My rough estimates put the whole system at a little over 600W or so under full load) - I decided I should seek a second opinion as to whether the power supply would be able to take that. Especially considering I have yet to see power numbers for a fully stressed system running 2 GTX 460s - the recent article here appears to only stress test the GPUs and forgoes the usual prime+furmark total system stress test.

BTW does anybody know of a GTX 460 SLI review/forum thread that has numbers depicting a fully stressed system?

Thanks for all the help guys
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a b ) Power supply
July 29, 2010 9:36:23 PM

Esyphelon said:
Yeah I knew the X-750 was a great power supply. Was planning on using it ever since I read the Anandtech Review a while back. At the time I was planning on a build centering on two 5770s. When I decided to up the game to two GTX 460s - a significant jump in required system power(My rough estimates put the whole system at a little over 600W or so under full load) - I decided I should seek a second opinion as to whether the power supply would be able to take that. Especially considering I have yet to see power numbers for a fully stressed system running 2 GTX 460s - the recent article here appears to only stress test the GPUs and forgoes the usual prime+furmark total system stress test.

BTW does anybody know of a GTX 460 SLI review/forum thread that has numbers depicting a fully stressed system?

Thanks for all the help guys

With a 4Ghz 980X: http://www.tomshardware.com/reviews/geforce-gtx-460-sli...
3.75Ghz 965: http://www.guru3d.com/article/geforce-gtx-460-sli-revie...
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July 29, 2010 9:38:54 PM

x-750 has single rail 62a will run your system no problem. the thread you refer to the guys psu has two rails with max 25a on any rail and total 12v of 46a, thats why his psu may be no good for 460 sli.
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July 30, 2010 12:59:29 AM

Best answer selected by Esyphelon.
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