power supply which is better

mattheman

mattheman

mattheman

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power 1 +3.3=26a +5vbc +28a -5 = .3a +12 30a -12 vdc= .8a +5vsb 2.0a


power 2 +3.3=32a +5 = 30A +12v2=12A +12v2=16a -12v=1.0a
 
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First is really ancient design, second stinks as some old weak 12V junk.
What are brands/models?
 
You can't tell from the ratings only.

Many cheap power units report numbers which it can deliver for about 10 seconds before going up in smoke.

The first is an older design but 30A on the 12v rail is a decent amount and my old enermax with a similar output is still going strong 5 years on.

The second is a more modern design but with the split being 12/16 you couuld easily overload one of the rails depending on how it's distributed. Many early split rail units don't share current very well across the 12v outputs

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Give brand and model and maybe we can help you better.

As decto said it is hard to tell from ratings alone (as manufacturers ratings are NOT equal).
 
psu 1 looks abit better. but tbh if u want a good cheap psu search for "hi-power".. i know people say buy an well known brand psu but some not so well known brands are really good...

also ANY psu can go bang even the well know brands. i had a Corsair TX 650W in my other system and it went pop and took 2 hdds, dvd drive.
 
i know people say buy an well known brand psu but some not so well known brands are really good...
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Doesn't really matter if the PSU is well-known or not, what you need is decent build-quality. There are plenty of well-known PSU brands that fit turd-cheap components who I wouldn't touch with a bargepole.

also ANY psu can go bang even the well know brands. i had a Corsair TX 650W in my other system and it went pop and took 2 hdds, dvd drive.
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Yup and there are cheaper PSUs that would have taken the rest of your rig with it.
 
this Hi-Power 900W Modular that im using in my main rig i've had for about 5-6 months+ now without problems and the quality is very good. also the air that comes out of it is cold, not even warm.. for £69 it was well worth it.
 
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psu 2 would be no good because it only as 16a on +12v..

i wouldn't use psu 1 too. but it should work for awhile.

tbh u should buy a better psu.
 
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I used to have this argument with many a customer when I worked at OcUK.

TBH I find these debates absolutely infuriating.

Let me put it simply...

If you bought a £200,000 sports car, would you run it on cheap tyres, with budget oil and substandard fuel?

The point is, if you want to spend a small fortune on top quality, high performance parts, then don't be a skin flint on speccing the PSU to run it all on.

This:

http://www.overclockers.co.uk/showp...X2.2 Modular SLI Compliant PSU (CMPSU-520HXUK)

Will run your kit fine.
 
 
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AndyOcUK said:
?:confused: Why does he need the 650W? Then you posted the 450W? :confused:



Thats rich , you're posting the more expensive one?:confused:
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650W is cheaper than the one u said.

TX 650W ATX2.2 SLi Compliant PSU £64.61 inc VAT,
HX 520W ATX2.2 Modular SLI Compliant PSU £70.49 inc VAT

AndyOcUK said:
Thats rich , you're posting the more expensive one?:confused:
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nope look above.
 
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psu 2 would be no good because it only as 16a on +12v
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Actually I think it has 2 rails and the OP listed it wrong, more like +12v1 16A and +12v2 12A, giving a grand (in theory) total of approx 300 Watt +12v power (no combined figure given or whether they are only peak).

The first PSU (EZCool) with a single rail appears to be more powerful (approx 350) but from what I know of EZCool they are over-rated (on +12v) and tend to struggle with high-end rigs.

The Corsair 450 would power it fine though and either of those PSUs have a chance. I'd say the rig will consume 250 max and around 200 regular maybe, feasible if the Trust/EZCool ratings are accurate but I wouldn't want to guarantee either PSUs lifespan long-term.
 
AndyOcUK said:
its on the this week only page, thats why.

Recommending a 450W psu isn't good for a system running a flagship graphics card and a multicore CPU. We still don't know what else he's running in the system as he's not posted full specs yet.
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450w is easyly enough. my rig in sig only gets to 325w load..
AndyOcUK said:
its on the this week only page, thats why.
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so? if its cheaper than the 520w untill thursday it'll better to get the 650w
 
With that kind of system, I would say that you wouldn't need to buy anything more than a VX450. That will be plenty, and has space for upgrades in the future.
 
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