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80 plus Gold / Platinum low-power PSU - Page 2

post #11 of 15
Quote:
Originally Posted by mikeaj View Post

It depends on the hard drive model, but maybe 20-40W on startup per disk is typical. That can add up fast with several drives, if they're spinning up simultaneously.
That's too much.. I'd say 20W at most for SATA drives, and a third of that is 5v power so I wouldn't say HDDs are an issue until you have so many that you start adding SATA controllers(8 or more drives for most consumer motherboards) wink.gif
Quote:
Originally Posted by mikeaj View Post

Given current pricing, on newegg the FSP Aurum 400W looks like the thing to get at $65. If only Rosewill Capstone 450W were available for $60 or even the $70 it was at, that would probably be a better investment, but oh well.
He's in Europe wink.gif
post #12 of 15
Quote:
Originally Posted by mikeaj View Post

Power draw from CPU and GPU may be a bit higher than you expect on startup. Check the graphs here carefully for an idea. On some plots you can see the idle draw before the 3DMark / Furmark / prime95 or whatever load is being tested, kicks in.
http://www.xbitlabs.com/articles/cases/display/system-wattage_7.html#sect0
But even a Celeron G530 (IGP included I guess) fully loaded doesn't take much.
It depends on the hard drive model, but maybe 20-40W on startup per disk is typical. That can add up fast with several drives, if they're spinning up simultaneously.
Given current pricing, on newegg the FSP Aurum 400W looks like the thing to get at $65. If only Rosewill Capstone 450W were available for $60 or even the $70 it was at, that would probably be a better investment, but oh well.

gives me a 404

kk now its working, odd
Edited by Vuashke - 3/2/12 at 5:26pm
post #13 of 15
Quote:
Originally Posted by Unoriginal Sin View Post

That's too much.. I'd say 20W at most for SATA drives, and a third of that is 5v power so I wouldn't say HDDs are an issue until you have so many that you start adding SATA controllers(8 or more drives for most consumer motherboards) wink.gif
He's in Europe wink.gif

Whoops, that seems to be a really pessimistic estimate for drives these days. Range should be more like 15-25W for most 5400rpm and 7200rpm drives? I could've sworn a lot of stuff was well above 2A on +12V alone though, so eight drives on like a Huntkey Jumper 300G is concerning, if not really a problem.

http://www.storagereview.com/hitachi_deskstar_5k4000_review
http://www.storagereview.com/hitachi_deskstar_7k3000_3tb_review_hds723030ala640

Argh, Europe yes. redface.gif
post #14 of 15
Quote:
Originally Posted by mikeaj View Post

Whoops, that seems to be a really pessimistic estimate for drives these days. Range should be more like 15-25W for most 5400rpm and 7200rpm drives? I could've sworn a lot of stuff was well above 2A on +12V alone though, so eight drives on like a Huntkey Jumper 300G is concerning, if not really a problem.
http://www.storagereview.com/hitachi_deskstar_5k4000_review
http://www.storagereview.com/hitachi_deskstar_7k3000_3tb_review_hds723030ala640
Argh, Europe yes. redface.gif

Most drives are indeed rated at 2A/12v but you're not gonna see that at start-up.. I mean, 15-20W/drive at start-up is a good average for a typical file server.. you're not gonna have 8/10/etc 10K RPM drives, most likely a couple 10K or 7.2K and a lot more 5.4K drives... the problem these days with such setups isn't the 12v rail/s, but the 5v, which on most units(independent of combined rating) doesn't like to continuously output more than ~15A; that's why units like the Antec Signature(1% 5v regulation at 20A) remain top choices many years after they were launched, you can literally do anything with them... multi-VGA setup? brilliant performance... or maybe a 20HDD/X0TB file server? not an issue either. smile.gif
Edited by Original Sin - 3/2/12 at 7:49pm
post #15 of 15
Thread Starter 
Quote:
Originally Posted by Schmuckley View Post

Whatcha doing with those dominators? What's the timings on 'um @ say..1600?

Their stock settings are: 8-8-8-24 @ 1.65V @ 1600Mhz. When Im putting everything together I might pop them in my main rig and see what they can do but I'm not expecting much. They used to be my brother's so no idea how well they clock

But I'll probably run them @1066 so I can turn down the voltage.


EDIT:
Well, it's not like it's going to have 10 drives.
I was thinking along the lines of 1 2TB disk for my stuff, 4 1 TB disks in 2x RAID1 for my parents and brother's business stuff. That should last us a while. I hope.

6*25 (let's take a worst-case scenario here) = 150 W. So 300 W should definitely cover it.

Thanks for the suggestions so far. Wouldn't have found those myself thumb.gif
Edited by Bloitz - 3/3/12 at 1:23am
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