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Which PSU? 18 HDD's

post #1 of 33
Thread Starter 
I'm setting up a new ESXi server, and I need a recommendation for a power supply. Here are the specs:

80w LGA1366 Xeon
6x4GB DDR3 1333 RAM
GeForce GTS 450 or GTX 275
2 Dell PERC5/I RAID controllers
18 3.5" Hard drives
7 80mm Fans
3 120mm fans

So, what power supply would you guys recommend? I've never set up a build with so many hard drives so I'm unsure, but I was thinking around 650W? I'd also prefer the best efficiency/price ratio I can get. My budget is around 125-140. Take note that I'm in Canada, Newegg.ca or NCIX.com is preferred.

Thanks!
Edited by zouk52 - 6/18/11 at 3:29pm
     
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post #2 of 33
I'm not extremely pro with PSU's but I would think a 650-750W at most would do you fine. HDDs don't really require a lot of power. They have those molex to 2 sata power adapters on the interwebs for cheap. Really wouldn't take a lot.
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Verktøy Cu
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post #3 of 33
Hmm... This is a toughie because HDDs don't consume that much power, but 16 of them? :O

I'd really assume that 650 is more than enough, so I'll recommend you a couple that fit your bill. If someone confirms that you don't need 650W, I'll come back and recommend some others. :3

TX 650 v2 (80+ Bronze)

Seasonic X650 (80+ Gold)

The latter obviously being the better one, but it comes as a premium. It's a brilliant PSU though.
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post #4 of 33
650W at the most for that, almost closer to a 550W
    
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post #5 of 33
I think 500W ought to be more than enough. Does the PERC 5/i support staggered spin-up? You're going to need it with that many drives.
post #6 of 33
Thread Starter 
Thanks for your replies, guys. I was looking at that X650 before, and it looks real nice! But I just found this, which I know is a bit overkill, but I may end up putting my GTX 275 in the rig, and at this price point I think it's a great deal. Has anyone used this PSU before? Should I stay away from it?
     
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post #7 of 33
Quote:
Originally Posted by zouk52 View Post
Thanks for your replies, guys. I was looking at that X650 before, and it looks real nice! But I just found this, which I know is a bit overkill, but I may end up putting my GTX 275 in the rig, and at this price point I think it's a great deal. Has anyone used this PSU before? Should I stay away from it?
It's basically the same insides as the XFX 850W Black Edition, which means it's an outstanding unit. This is obviously the plain gray non-modular OEM version that comes without a power cable or any frills really.
post #8 of 33
Thread Starter 
Quote:
Originally Posted by Shub View Post
It's basically the same insides as the XFX 850W Black Edition, which means it's an outstanding unit. This is obviously the plain gray non-modular OEM version that comes without a power cable or any frills really.
I don't mind the ugly exterior as it's going in my server, and I've got plenty of screws and power cables. So should I just grab that and be done with it?
     
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post #9 of 33
It is a great unit but I don't quite see why pay $140 for a PSU when you'll never top 50% of its capacity. Ok, assume you add your GTX 275 to the equation, you'll still be way below its capabilities. Is this going to be a folding rig (in addition to ESXi) though?
post #10 of 33
Quote:
Originally Posted by derickwm View Post
HDDs don't really require a lot of power. They have those molex to 2 sata power adapters on the interwebs for cheap. Really wouldn't take a lot.
During spin-up, HDDs can use 20-30w. That would be 320-480w for a few seconds just for the HDDs. Once spun up, HDDs use less than 5-10w on average. It is the spin up that he needs to worry about.
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