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Old 01-02-2015, 10:56 PM   #1
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Default Which Power supply should I use?

(I'm in the UK BTW)
If I were to have an i5-3570k and an ASUS R9 290 OC 4Gb what power supply should I use? (Whats the lowest wattage I should be able to go at) as I'm not good at figuring out the min and max wattage.
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Old 01-03-2015, 04:04 AM   #2
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Default Re: Which Power supply should I use?

For such a high-end video card, I recommend no less than 600 Watts.
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Old 01-03-2015, 10:52 AM   #3
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Default Re: Which Power supply should I use?

What about this one?
Corsair CSM 750W 80+ Gold Certified Semi-Modular ATX Power Supply (CS750M) - PCPartPicker United Kingdom

It's gold validated, 750W, modular and from a respected brand.
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Old 01-03-2015, 11:41 AM   #4
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Default Re: Which Power supply should I use?

That PSU is made by Great Wall which is not very good. Get a Seasonic made or a Super Flower made.
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Old 01-03-2015, 11:58 AM   #5
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Default Re: Which Power supply should I use?

Wait what? The one i linked to?
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Old 01-03-2015, 12:25 PM   #6
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Default Re: Which Power supply should I use?

Yeah, Corsair uses a few makers for their line and this one has the maker with poor reviews.
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Old 01-03-2015, 03:32 PM   #7
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Default Re: Which Power supply should I use?

Hmm. Haven't seen any reviews with it. I just saw a gold validated modular 750W PSU from corsair to a good price. If it has gotten bad reviews than maybe this one is more up the ally: Corsair RM 750W 80+ Gold Certified Fully-Modular ATX Power Supply (RM750) - PCPartPicker United Kingdom

I know for a fact that this one is a good one. It's 12 pounds more. But that's properly worth it if the other one have bad reviews.
It has as similar specs. This one is fully modular though.
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Old 01-03-2015, 03:41 PM   #8
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Default Re: Which Power supply should I use?

Sigh, another poor choice. This one is made by Chicony Power and also questionable as to their components, especially their caps.

Get a Seasonic and be done with. They use Japanese caps which are high quality.
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Old 01-03-2015, 03:49 PM   #9
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Default Re: Which Power supply should I use?

here's the Corsair models that's made by Seasonic:

400CX
450VX
650TX
650XV2
750TXV2
850TXV2
450HX
520HX
620HX
650HX
HX650
650AX
750AX
AX760
850AX
AX860
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Old 01-03-2015, 05:21 PM   #10
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Default Re: Which Power supply should I use?

I simply don't agree in your opinion. It's definitely not a poor choice.
That PSU have gotten good reviews and it come at a fair price, Why does it HAVE to be Seasonic.
Seasonic is a fantastic brand, no doubt about it, but they are not the only company in the world who knows how to make PSU's.
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Old 01-03-2015, 05:41 PM   #11
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Default Re: Which Power supply should I use?

That's fine. There are 5 tiers of PSUs and yours are tier 3 (1 being the best) and they'll do but a few dollars more gets you to tier 2.

Also the cheaper ones uses caps made in Taiwan which are questionable while the Japanese caps are better.

Also tier 2 and 1 have better circuitry which makes them more capable of protection against blackouts and brownouts.

Also higher amperage on 12V rail(s).
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Old 01-03-2015, 05:53 PM   #12
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Default Re: Which Power supply should I use?

I suppose you are talking about 80+ Certification.
The one i linked to is gold validated.

The cheapest seasonic PSU in the list i filtered is almost 20 Pounds (30 US dollars. So more than just a few dollars) more expensive than the one i linked to. They are both from respected companies, both are 80+ Gold, Both 750W and lastly both are modular.
Here is the seasonic: SeaSonic G-750 750W 80+ Gold Certified Semi-Modular ATX Power Supply (SSR-750RM) - PCPartPicker United Kingdom

Great PSU. But there is a fractal design PSU for sale right now at the same price that are platinum validated and have 50W more.
Fractal Design Newton R3 800W 80+ Platinum Certified Semi-Modular ATX Power Supply (FD-PSU-NT3B-800W) - PCPartPicker United Kingdom
techpowerup gave it 9/10 points.
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Old 01-03-2015, 06:12 PM   #13
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Default Re: Which Power supply should I use?

The ratings (Bronze, Platinum, Gold) are efficiency ratings in relation to the draw from the wall. That has nothing to do with the build quality.

That Fractal Design is made by ATNG which I know nothing about.

By the way, 4 of the Fractal Design models (ED1B) are made by Seasonic.
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Old 01-03-2015, 06:24 PM   #14
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Default Re: Which Power supply should I use?

I'm not trying to put you down BE but when it comes to your investments in the PCs the PSU is the most important part of the system. If the PSU goes out it can take the system with it.

Now the OP has a quad core CPU and a high end video card which runs into serious dollars I wouldn't want him to settle for tier 3 PSUs. Tier 2 is better without spending big bucks for tier 1.
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Old 01-03-2015, 06:54 PM   #15
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Default Re: Which Power supply should I use?

I am a huge fan of the 80+ rating. To me that's what is the most important other than a respect brand and the right among of Watt.
Before buying I check some review sites for the score, pros and cons.

I have actually never heard of the tier rating on PSU's. Reviews don't included them often, do they?
Maybe i have to start including that into my consideration when buying PSU's.
I have some reading to do it seams.
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Old 01-03-2015, 07:34 PM   #16
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Default Re: Which Power supply should I use?

Newegg has the tier ratings but so far it hasn't been updated (since 2008) so I found this dated 7-14.

***Please Read*** Power Supply Tiers ***Quoted From EggXpert*** - Cases and Power Supplies - Linus Tech Tips

As I said before the 80+ stuff doesn't show the build quality.
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Old 01-03-2015, 08:33 PM   #17
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Default Re: Which Power supply should I use?

i never stated that they did. It's a performance rating.

That just links to a forum post.
Sure that tier rating is a proper accepted rating system?
I haven't yet come across the term, and i have been interested in hardware for 7 years.
I'm i alone here? anyone?
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Old 01-03-2015, 08:47 PM   #18
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Default Re: Which Power supply should I use?



This computer has been running almost non stop for a year. Note what it is...
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Old 01-03-2015, 09:39 PM   #19
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Default Re: Which Power supply should I use?

Yeah it's a corsair AX850. It's a fantastic PSU.

Why the docktape (or whatever it is)?
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Old 01-03-2015, 11:10 PM   #20
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Default Re: Which Power supply should I use?

Yep, that's a Seasonic.
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