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Help me with choosing the right PSU for my system!

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NZXT Phantom 410
Intel Core i5 3570K
Asus 7950 CUII
ASRock Z77 Extreme4
HyperX Kingston 8Gb
------------>AX850<------------
COOLER MASTER Hyper 212 EVO
Acer S231HLbid 23''
Samsung 840 120Gb

Same as tittle, I'm looking for a PSU can not handle this system but would be long lasting as well. I've read ton of reviews about ton of PSUs which make me lean to corsair AX, SeaSonic X gold prefer the other brands.
I have had good experience with HX1050 in the past and I quite like it. That's why I'm very considering HX650 for this new system; but some reviews say this model "chirping" while the system reach 50% PSU's power. Besides, SeaSonic X750 seems good to me. But they are 50$ different (Corsair discount atm, ends 2/11/2013)
Seasonic x750 http://www.newegg.com/Product/Product.aspx?Item=N82E168...
Hx650 http://www.newegg.com/Product/Product.aspx?Item=N82E168...

If HX650 isn't good enough and I must go for SeaSonic X750 (139.99$ US), should I just pay 10$ more for getting AX850 which is really good IMO (AX850 is another PSU I've owned the in past).

I know 700~800W should be wasting money and overkill with this system, still does with 650W. But just assume that I will overclock and crossfire in the future. I want get the best that I could; in the other hand, I would save some extra $ for upgrading Dell ultrasharp. So please consider your advice limits in performance/price (value) quantum.

P/S: I prefer Modular or Semi-modular!

More about : choosing psu system

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Power supply Master

Sugarfree152 said:
NZXT Phantom 410
Intel Core i5 3570K
Asus 7950 CUII
ASRock Z77 Extreme4
HyperX Kingston 8Gb
------------>AX850<------------
COOLER MASTER Hyper 212 EVO
Acer S231HLbid 23''
Samsung 840 120Gb

Same as tittle, I'm looking for a PSU can not handle this system but would be long lasting as well. I've read ton of reviews about ton of PSUs which make me lean to corsair AX, SeaSonic X gold prefer the other brands.
I have had good experience with HX1050 in the past and I quite like it. That's why I'm very considering HX650 for this new system; but some reviews say this model "chirping" while the system reach 50% PSU's power. Besides, SeaSonic X750 seems good to me. But they are 50$ different (Corsair discount atm, ends 2/11/2013)
Seasonic x750 http://www.newegg.com/Product/Product.aspx?Item=N82E168...
Hx650 http://www.newegg.com/Product/Product.aspx?Item=N82E168...

If HX650 isn't good enough and I must go for SeaSonic X750 (139.99$ US), should I just pay 10$ more for getting AX850 which is really good IMO (AX850 is another PSU I've owned the in past).

I know 700~800W should be wasting money and overkill with this system, still does with 650W. But just assume that I will overclock and crossfire in the future. I want get the best that I could; in the other hand, I would save some extra $ for upgrading Dell ultrasharp. So please consider your advice limits in performance/price (value) quantum.

P/S: I prefer Modular or Semi-modular!


Hi - So, is it safe to assume you are looking at $100-$150 for this PSU.
BTW, a quality 500w unit will run that sys, but there's a lot of prom deals
on 650's right now, making them excellent price/value items.

Tom

http://www.newegg.com/Product/Product.aspx?Item=N82E168... Good deal on top shelf psu - 660w platinum, nets to $120

http://www.newegg.com/Product/Product.aspx?Item=N82E168... hx760 modular nets to $70

I really like the 660 platinum, but don't know if I'd pay $50 more
Power supply Master

Sugarfree152 said:
Tom,
Yup i know, but please give me some specifically item should I buy, any other PS should I check out?


listed 2 above, was just waiting on your $$ budget range. I looked at quality 550's,
but the 650's are less right now.

another to check out: http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Ah - if there's a reasonable chance you will CF, then go with the Seasonic or the Capstone.
The HX has only 2 pci-e connectors (even tho the descr lists 4 it is only 2)

http://www.newegg.com/Product/Product.aspx?Item=N82E168... also ex deal if you think you will CF 2 7950's (nets about $120)

http://www.newegg.com/Product/Product.aspx?Item=N82E168... ex unit " " " " "
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Hmmm, Rosewill Capstone doesn't sound familiar with me. Maybe I'm not digging in enough to see more Rosewill PSU solution.
The AX750 you recommended above seems good to me. My current PSU in shopping cart is AX850. SO downgrade to AX750 at this moment will save me 22$. I might for for it. Let's see how it was reviewed.

Best solution

Power supply Master

Sugarfree152 said:
Hmmm, Rosewill Capstone doesn't sound familiar with me. Maybe I'm not digging in enough to see more Rosewill PSU solution.
The AX750 you recommended above seems good to me. My current PSU in shopping cart is AX850. SO downgrade to AX750 at this moment will save me 22$. I might for for it. Let's see how it was reviewed.


The AX750 is a fine unit, is more than you need, even if you CF.
On Rosewill, their Capstone Gold series, and Tachyion Platinum series,
are excellent quality PSU's, all made by Superflower(except the 1200w),
an OEM that isn't involved in the low end stuff, and are really good quality.

The AX 750 is Seasonic built, and is attractively priced.

You can't go wrong.

I think the AX750 @ <$120 is too good to pass up if you are thinking
of CF with two 7950's.
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