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Adding another 480 & more HDDs

post #1 of 22
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This is for the rig in my sig.

I currently have a 750HX but just purchased two MSI 480 Lightnings (not doing 3-way, just the MSIs) and will add two Samsung F4s. If it matters, I've got 8 fans as well.

Keep or do I need to upgrade? If so, 1000HX?
Edited by InvalidUserID - 4/19/11 at 5:37pm
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post #2 of 22
Ermm the 480 uses 250W of power together the 480 will use ~40A of power

So no you will not need another PSU..
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post #3 of 22
Quote:
Originally Posted by InvalidUserID View Post
This is for the rig in my sig.

I currently have a 750HX but just purchased two MSI 480 Lightnings (not doing 3-way, just the MSIs) and will add two Samsung F4s. If it matters, I've got 8 fans as well.

Keep or do I need to upgrade? If so, 1000HX?
It's very close. I never suggest anything lower than 850watts with the 480's. They may use 250, but can pull up to 285-290w TDP at times, not to mension the overclocking on the CPU, which adds 200w full TDP, 150 possibly in games. As you can see, your over 750 all ready, and that PSU will only output 700w at most on the 12v anyway!

May i suggest the SeaSonic M12D 850W, or if you want more headroom, the Corsair AX1200W.

The corsair HX1000 has the same amount of Amps and watts as the seasonic 850 i suggested, that's how good it is! Plus it's full modular.
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post #4 of 22
It'll be fine so long as you don't go running LinX+Furmark together. Normally the sensible recommendation for dual 480s is a 850W unit, but you'll be fine.

Quote:
Originally Posted by BradleyW View Post
that PSU will only output 700w at most on the 12v anyway!
That's incorrect, the HX750 does 62A@12V.
post #5 of 22
Quote:
Originally Posted by Shub View Post
It'll be fine so long as you don't go running LinX+Furmark together. Normally the sensible recommendation for dual 480s is a 850W unit, but you'll be fine.
I would just hate to see the OP go over the PSU limit in next gen games that require parts to kick in more and this is what is going to happen.
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post #6 of 22
I think you would be very close and myself i would look at a new PSU, thats just my opinion though.
Quote:
Originally Posted by BradleyW View Post

The corsair HX1000 has the same amount of Amps and watts as the seasonic 850 i suggested, that's how good it is! Plus it's full modular.
Certainly does! just checking that seasonic out now and it looks pretty damn good over on Jonnyguru
Edited by superj1977 - 4/19/11 at 5:51pm
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post #7 of 22
Quote:
Originally Posted by superj1977 View Post
I think you would be very close and myself i would look at a new PSU, thats just my opinion though.
Yep, it's the sensible thing to do i believe.
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post #8 of 22
new psu, better safe than sorry, headroom is always good
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post #9 of 22
I thnk he knows better then to OC when your that close LOL
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post #10 of 22
I normally just enter these threads to tell people they're fine and to just move along, but the 480s are one of the few cards power monsterish enough to sometimes warrant a new PSU.

I'd say that you're on the borderline here, if you don't mind that you'll be pushing your PSU hard (but that's what it's made for IMHO), hot and maybe even noisy, then you probably won't blow it up. If you are one of those guys who likes "headroom" for whatever reason, you might look into going bigger. The HX1000 would probably be overkill and from what I read it's not that great a PSU anyway for its price (old model).

An 850 is safe and cheapest if you're looking to upgrade, depending on your budget for what model to get.
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