My Guide to buying or choosing power supplies
Written by: bloodman92 - 18:14 Sep-01-2015

1.Buy high-efficient power supplies that are really outputting the amperage it says it does.

These manufacturers include EVGA Enermax,Thermaltake,Superflower,Corsair and avoid the non-famous ones.

2.In case you buy a power supply from unfamous and not that popular manufacturer just make sure you add extra 50-100Watts more than you need just in case the effiency is not good enough for modern gaming machines.

For example if your GPU requires 500Watts add extra 50-60 and buy 600 Watts.

3.Do not trust what you see on the label but look at reviews of other users and actual peromance.For high-end machine its important that you have high-end power supply.The risks of buying not good and powerful enough power supply is to burn the others parts if its protection fails or in the best case scenario to shut down the system.

4.Look at the overall quality of product(perfomance,capacitors,etc) Thanks for the idea/point to @tzzsmk.

You might already know that but just in case as a reminder ;].I wanted to share my non-expert opinion for power supplies and raise the problem of how important one power supply is in a modern high-end gaming machine.Don't underestimate that otherwise you will end up buying a new cpu,gpu,motherboard and whole computer.Also overclocking really shortens your power supply and cpu,gpu lifespan.
Your buddy,bloodman92

Hope you find this useful.Thanks for reading!
Table of nominal and real output of power supplies in Ampers:
200 Watts – 17 Ampers @ 12V
300 Watts – 25 Ampers @ 12V
400 Watts – 33 Ampers @ 12V
500 Watts - 42 Ampers @12V
600 Watts – 50 Ampers @ 12V
700 Watts – 58 Ampers @ 12V
800 Watts – 67 Ampers @ 12V
900 Watts – 75 Ampers @ 12V
1000 Watts – 83 Ampers @ 12V
1100 Watts – 92Ampers @ 12 V
1200 Watts – 100 Ampers @ 12V
1300 Watts – 108 Ampers @ 12V
1400 Watts – 117 Ampers @ 12V
1500 Watts – 125 Ampers @ 12V
1600 Watts – 133 Ampers @ 12V
1700 Watts – 142 Ampers @ 12V
2000 Watts – 167 Ampers @ 12V

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20:46 Sep-09-2015

Very nice article

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01:39 Sep-09-2015

Dont forget Antec as a reputable company

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15:17 Sep-08-2015

what about coolermasters? aren't they high end?

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16:51 Sep-08-2015

Depends on the specific model, mainly the older/cheaper ones are relativly bad. But the newer mid-range and up series are fine. Just remember CM doesn't make the PSU themselfs, so you have to look up the OEM of your specific model

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20:02 Sep-03-2015

I bet this review is gonna halp lots of people!

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10:26 Sep-02-2015

A good PSU review website, or the best, is jonnyguru.

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12:35 Sep-02-2015

I like to use RealHardTechX for looking up what platform is used and which sites have reviews on what power supplies. Even sketchy power supplies are listed there.

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19:14 Sep-02-2015

nope, best one is hardware secrets

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12:27 Sep-03-2015

Unfortunately they don't review any new PSU's anymore.


In my opinion Hardware secrets, Techpowerup, HARDOCP and jhonnyguru all make excellent reviews. Note thar jhonnyguru works(or worked) for Corsair, not saying he might be biased but just to keep that in mind.

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08:19 Sep-02-2015

I think you should have mentioned quality of individual psu components, I know it's more technical hardcore stuff for many people, but it matters most ;)

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10:24 Sep-02-2015

yesss

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17:11 Sep-02-2015

You mean capacitors and etc? I will include it in point 4 tzzsmk ;]]

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18:50 Sep-02-2015

yup exactly, capacitors, coils, and stuff like that,
ya know when you read some good quality PSU reviews on the internet the specs they take look into ;))

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07:43 Sep-03-2015

Just make sure the capacitors are Japanese :D

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07:59 Sep-03-2015

doesn't automatically mean quality anymore..

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19:39 Sep-03-2015

@Tzzsmk Could you elaborate? I've yet to see an japanese cap with a bad reputation.

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20:00 Sep-03-2015

google those up yourself, there exist some :)

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06:19 Sep-02-2015

EVGA power supplies for me. Never had a problem and work amazing.

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08:18 Sep-02-2015

same here :D

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13:34 Sep-02-2015

I usually preffer Corsair PSUs but Cooler Master PSUs also work

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21:32 Sep-01-2015

Cooler Master G series PSUs are really fine also have it in my build no problems so far

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21:22 Sep-01-2015

point one is as false as possible, brand doesn't matter.


Also the "Table of nominal and real output of power supplies in Ampers" is not the best, it's better to get a 600 Watt 42AMP PSU for example over a 500 Watt 42AMP PSU as it will cost less than that 500 Watt PSU and do the same job.

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21:35 Sep-01-2015

That makes no sense. A 12v rail with 42 amps would be able to deliver 504 watt. So you won't be able to pull 600w out of this unit for your main power consuming components like your processor and graphics cards. And that'd mean that the 3.3v and 5v rails have to fill in the rest of the 96w.

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21:39 Sep-01-2015

but it will cost a lot less, price is a factor as well.

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21:42 Sep-01-2015

I am aware of it, but when you're comparing a 500w vs a 600w version of a power supply the price difference is quite insignificant. For example the GS650 from EVGA is 10$ cheaper than it's 550w equivelant. The Corsair CX500M is the same price as CX600M (prices from PCP).

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22:02 Sep-01-2015

However the prices directly from the retailers show how much it will cost with tax added along with Mail In Rebate

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18:33 Sep-01-2015

Any source on point 4?


Most Platinum PSU's from respected brands(if not all) do pass the required efficieny levels at 10/20/50 and 100%.


Also look at the OEM instead of the Brand, i believe only Superflower makes their PSUs themselfs out of the ones you listed, the others buy something from Enhance, CWT or Seasonic for example

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00:22 Sep-02-2015

Yeah, and most evga psus are superflower.

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18:26 Sep-01-2015

Seasonic, SuperFlower and some others are OEM's as well, which means even less known brands (like OCZ, XFX and Rosewill) can be great as the internals are similar to that of Seasonic or SuperFlower. When shopping for power supplies I'd rather research for it's actual performance rather than a brand.


When referring to performance I'm talking about efficiency, ripple suppression, voltage regulation, component / soldering quality as well as max operating temperature.

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18:41 Sep-01-2015

yes i agree quality is the most important of all factors not brand ;]]

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18:16 Sep-01-2015

I'd include SeaSonic in the good PSU makers,really good PSU's with the amperage and efficiency as advertised ;)

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