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What PSU for my spec?

Last response: in Components
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December 10, 2012 11:44:05 PM

Hi guys, could you recommend me a PSU for this spec:


OS Version: Microsoft Windows 7 Ultimate, Service Pack 1, 64 bit
Processor: Intel(R) Core(TM) i3-2100 CPU @ 3.10GHz, Intel64 Family 6 Model 42 Stepping 7
Processor Count: 4
RAM: 8173 Mb
Graphics Card: AMD Radeon HD 7850, -2048 Mb
Hard Drives: C: Total - 476836 MB, Free - 304862 MB;
Motherboard: ASUSTeK Computer INC., P8Z68-V LX


My power supply is the Cooler Master Xtreme Power 500 watts which I have been told on several occasions on this forum is garbage. I intend on overclocking the 7850 a good bit but don't intend on overclocking anything else. I am also going to upgrade to an i5-3570K next year and I will be overclocking that probably.

Modular would be preferrable but not if it is too expensive (over £60)

Any recommendations?

More about : psu spec

a c 110 ) Power supply
December 11, 2012 12:12:59 AM

A Corsair CX500V2.
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December 11, 2012 12:26:56 AM

Hmm, it only has 34 amps on the +12 volt rail, I think that is absolute minimum for a 7850. Would it matter?

Thanks for your reply
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a b ) Power supply
December 11, 2012 12:40:09 AM

I believe the 7850 requires at least 24 amps for a single card on a combined 12v rail....

Anyways if you want more wattage (you don't really need to) or just want alternatives consider these:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...
^675 watts with almost 50% discount
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Think I'll go post the Thermaltake power supply in the deals sections right now...and then get back to studying :lol: 
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December 11, 2012 12:49:14 AM

Damn, I would of bought that if I lived in America lol Unfortunately I'm in the UK and you get all of your components cheaper than us. I done a lot of comparing and it is a lot cheaper for you.

Oh, well if it only needs 24 amps then I'll definitely go for that one. It is Corsair after all so it has to be reliable.

I can get it for £48.50 from Amazon or $78 in your cheap-as-hell money lol
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a b ) Power supply
December 11, 2012 12:52:02 AM

mmccreesh1 said:
Damn, I would of bought that if I lived in America lol Unfortunately I'm in the UK and you get all of your components cheaper than us. I done a lot of comparing and it is a lot cheaper for you.

Oh, well if it only needs 24 amps then I'll definitely go for that one. It is Corsair after all so it has to be reliable.

I can get it for £48.50 from Amazon or $78 in your cheap-as-hell money lol


How about this power supply? :D 
http://www.amazon.co.uk/Ocz-Fatal1ty-Series-550w-Psu/dp...

Well priced :lol: 

Edit: Now to be serious
http://www.amazon.co.uk/Seasonic-S12II-520-ATX12V-Stand...

or

http://www.amazon.co.uk/XFX-P1-550S-XXB9-PRO550W-Editio...

They are both great power supplies. amuffin's power supply is also a great one. Go for whatever strikes your fancy.
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Best solution

a b ) Power supply
December 11, 2012 1:29:18 AM

The XFX 550 is probably the best value right now, you can get it for £50 from Ebuyer with free delivery.
All the PSUs suggested are pretty good, could throw in the Antec High Current Gamer series too.
To be honest, you likely don't even need that much power. Even overclocked a 3570k isn't' going to be using much more than 100W. Your graphics card is rated at 130W and can't physically draw more than 150W due to only having one power cable. Pretty much everything else is trivial.
Any of the 500W+ PSUs listed will give you a lot of scope for any potential future upgrades.
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December 11, 2012 2:32:11 PM

Thanks for the suggestions guys. I think I will go with the XFX 550 watt since as Rammy says, its the best value now and it offers a lot of headroom for any future upgrades (maybe another 7850 :D ).

Thanks for the help!

Edit: I'm new to this, how do I pick a best answer like you see in the other threads? :) 
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a b ) Power supply
December 11, 2012 2:58:00 PM

mmccreesh1 said:
Thanks for the suggestions guys. I think I will go with the XFX 550 watt since as Rammy says, its the best value now and it offers a lot of headroom for any future upgrades (maybe another 7850 :D ).

Thanks for the help!

Edit: I'm new to this, how do I pick a best answer like you see in the other threads? :) 

Try it now. ;) 
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December 11, 2012 3:43:14 PM

Best answer selected by mmccreesh1.
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December 11, 2012 3:44:36 PM

Thanks! Does a moderator have to do that every time so I can pick a best answer?
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a b ) Power supply
December 11, 2012 3:53:39 PM

mmccreesh1 said:
Thanks! Does a moderator have to do that every time so I can pick a best answer?

No you need to choose the question option when starting a thread, the default setting by the way.
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