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PSU for my Current and Future Build

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November 9, 2011 6:19:35 AM

I have current choices between Corsair GS800,GS700, TX750V2, Coolermaster GX-750
My current build is
AMD Phenom II X4 955 (A plan to clock it till 4Ghz)
M4A78LT-M LE (A plan for a AM3+ Crossfire/SLi Ready Board)
Sapphire Raedon 5670HD (A plan for GTX660/GTX760 in 2014)


I've currently got a branded 500W dual rail psu, which gives combined 33A on the 12V rail
I was previously using a 500W single rail psu with 28A on the 12V rail

Apart from this I will be purchasing Corsair Carbide 400R in feburary, so I'll be using 120/140mm fans maxxed out (the maximum the chassis allows)
I am currently using 6x80mm fans in my current chassis
Cable management isn't a problem so I'm not going into modular
a b ) Power supply
November 9, 2011 6:40:46 AM

If you have a SLI and CF in mind then best is to get a 1000W PSU and be done with it for the next 4-5 years. Otherwise the TX750W from Corsair or something from Seasonic should be the option. Well 750W can hold many of today's SLI/CF setup as well.
November 9, 2011 8:08:02 AM

consider an antec new truepower 750w. its made by seasonic, and is a considerably better psu in disguise, more or less. doesnt cut any corners.

its also only 100 bucks.
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November 9, 2011 10:38:52 AM

The only thing in the market is what I've written, I'm thinking about GS800 as its got 65a on the 12V rail, and the TX750 has got 62a
or is it hands down to TX750 for quality performance and life?

The SLI/CF won't be a problem, I'll be using a 28a on 12V rail PSU which I'm not going to use for this setup if I ever do that, besides the 1000W is beyond my budget, my current amperage is less than 33a on the 12V rail so I am concerned for the moment
a b ) Power supply
November 9, 2011 10:44:51 AM

The TX750W is an old tried and tested design. Works great! Dont trust the new GS series from Corsair. The 3A wont do much since you say your current usage is hardly 33A.

Hardware Secrets gave the GS800 a thumbs up! And i trust that website! So you can go for it! It can deliver 85% efficiency! That is cool!
a c 273 ) Power supply
November 9, 2011 11:35:57 AM

The Corsair units are fine,stay well clear of the GX-750 = not the best psu.
November 9, 2011 12:15:41 PM

hell_storm2004 said:
The TX750W is an old tried and tested design. Works great! Dont trust the new GS series from Corsair. The 3A wont do much since you say your current usage is hardly 33A.

Hardware Secrets gave the GS800 a thumbs up! And i trust that website! So you can go for it! It can deliver 85% efficiency! That is cool!



I am considered about the 3A for future builds, and overclocking, GTX760/660 in SLi, and TX750V2 is the around the same price as GS800, infact GS700 was cheaper than TX650V2
a b ) Power supply
November 9, 2011 1:27:41 PM

The TX series is always more expensive than the GS series! Don't know about the 760 specs. So cant say if it would hold an SLI for that. But if its about GTX560 then it should!
November 10, 2011 4:06:47 AM

Alright, I used a PSU calculator and saw that my processor to 4000mhz is around 198W TDP on the processor, and I have 4200mhz in mind, also with a single GTX560ti, and 6x140mm fans, the recommended wattage was 714~730W

I am assuming that the GTX660/760 will have more or less 10/30W difference in TDP so with a single GPU setup I should be okay for a while, not clocking to 4000mhz then dual GTX560ti was also around 710W,
so I am finally going for the TX750V2
a b ) Power supply
November 10, 2011 6:22:37 AM

Good choice! Look for discounts at newegg. They have some daily.
!