Quality PSU help

Jedipottsy

Jedipottsy

Jedipottsy

Associate
Joined
27 Aug 2006
Posts
59
Hey,
looking to build 4 workstations running i7 2600k with the MSI p67 GD65 (b3 revision) and we need a quality PSU but i have no idea whats what when it comes to PSU. We plan on running single gtx460's, 8-16gb ram, and either single drive or raid-0 drives. Ive narrowed it down to these 2, although i would rather stay away from 800w+, power consumption will be an issue, and efficiency is prime but these machines will run almost 24/7 at full load for long periods of time.

http://www.overclockers.co.uk/showproduct.php?prodid=CA-116-AN
http://www.overclockers.co.uk/showproduct.php?prodid=CA-149-AN

are the protection features worth it, or is the dc to dc of the truepower better? However if there would be a better more reliable PSU for upto around £110 would i be better spending a little more? I would prefer modular as id like to keep these cases as cool and clean as possible.

Thanks
 
Seraph said:
LOL @ 750w supply for that rig?

try this, much better supply and more than enough power for an SB i7 rig with GTX460 :)
http://www.overclockers.co.uk/showproduct.php?prodid=CA-008-CS&groupid=701&catid=123&subcat=1084
Click to expand...

we will be overclocking the systems as far as we can push them, and for the extra £20 it gives us a little more future proof, should we decide to purchase a high end Quadro card or SLI geforce cards. I would also rather go for more than we need as these system need to be mission critical.

I hadnt seen the 750 XFX, i heard good things about the seasonic PSU's and that black edition is a rebrand right?
 
It is indeed a rebrand, and with some pretty rave reviews aswell.

I intend to purchase an 850w modular in the near future for my next rig.
 
If running 24/7 you might want to look at 80Plus Gold efficiency PSUs or at least Silver. I just installed a 92% efficient supply and the savings are quite a lot over a Bronze unit. If running 24/7 at full load you'd expect to save around a KWh per day. The difference in cost will soon be recouped in lower leccy bills.
 
Tealc said:
If running 24/7 you might want to look at 80Plus Gold efficiency PSUs or at least Silver. I just installed a 92% efficient supply and the savings are quite a lot over a Bronze unit. If running 24/7 at full load you'd expect to save around a KWh per day. The difference in cost will soon be recouped in lower leccy bills.
Click to expand...

is theres much difference between silver and gold? the XFX750W is silver, the only 80plus gold i can see is the corsair for £50 more,
 
There's about 4% between Bronze and Silver and a further 3% between Silver and Gold.

A 7% saving is significant, a 3% one not so much.

There will be 80Plus Gold coming to market soon with a keener pricing point from FSP, they come with a 5 year warranty.
 
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Jedipottsy said:
i would rather stay away from 800w+, power consumption will be an issue, and efficiency is prime but these machines will run almost 24/7 at full load for long periods of time.
Click to expand...

So you're aware that PSU doesn't always draw it's maximum? It's efficiency that you should be interested in (obviously it also needs to be rated above what your components will draw as well).
 
Aretenon said:
The FSP Aurums are actually available already in the UK.
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Yes but only really from a certain French retailer who swaps the Euro lead included for a UK lead. Oh and a few others that I've never heard of and wouldn't buy from. I checked while mine was on it's way from Taiwan.
 
Disco Boy said:
So you're aware that PSU doesn't always draw it's maximum? It's efficiency that you should be interested in (obviously it also needs to be rated above what your components will draw as well).
Click to expand...

Good point. It's also not worth getting higher wattage for 'future proofing'. If these systems are to be running 24/7 as you say, then capacitor aging could reduce the output of these PSUs quite considerably. Some PSU calculators suggest a 20-30% degradation of wattage for a 24/7 system. (Definitely on the extreme end of an estimate but worth considering).
 
think ill go for the Corsair Professional Series Gold AX750, "Over-voltage and over-current protection, under-voltage protection, and short circuit protection" aswell as the " and the completely modular cables is a good bonus. Id rather get a better PSU and make sure nothing goes wrong along with a surge protector
 
Seraph said:
LOL @ 750w supply for that rig?

try this, much better supply and more than enough power for an SB i7 rig with GTX460 :)
http://www.overclockers.co.uk/showproduct.php?prodid=CA-008-CS&groupid=701&catid=123&subcat=1084
Click to expand...

Ehh, no. The Corsair TX650 is a pretty average S12/E Seasonic, pretty old aswell. The Truepower New, HCG-750 and XFX BE 750 are all electrically superior. The XFX has M12D internals, and the TP is a mix of M12D/TP Trio.

Jedipottsy said:
think ill go for the Corsair Professional Series Gold AX750, "Over-voltage and over-current protection, under-voltage protection, and short circuit protection" aswell as the " and the completely modular cables is a good bonus. Id rather get a better PSU and make sure nothing goes wrong along with a surge protector
Click to expand...

All of the PSU's mentioned in this thread (and 99% of all other good ones) have OCP, OVP, and OPP.
 
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