help on choosing 1 of these PSU...

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Ash007

Ash007

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hi
i have yet another question im looking into as it is my budget line up.
& the last time i didnt end up buying a PSU...

my setup is
i5-4460
8gig gskill trident X (4gig x 2)
gigabyte H81S2PH Mboard
Watercooled EVGA GTX 480
1 dvd writer
120gig SSD
1TB internal
usb wifi
usb keyboard & mouse
few fans...

few online power calculators says i need a 575w PSU
The card needs a minimum 42A on the 12v rail....

I have listed few options, & see 2 options reviewed on http://www.johnnylucky.org/power-supplies/psu-recommendations.html
but still not sure which is the best from these PSU. i prefer getting the 80+ gold Antec,


options:

Antec TruePower Classic, 750w, 80 PLUS Gold (TP-750C) (35A x 4)

EVGA GQ 650w 210-GQ-0650-V1, Modular (210-GQ-0650-V1) (54A)

Cooler Master MasterWatt Lite MPX-7001-ACABW - 700w (MPX-7001-ACABW) (22A x2)

Cooler Master GM, 650w, 80 PLUS Bronze, Modular (RS-650-AMAAB1), (52A)

Antec High Current Gamer, (ANT-HCG-620M) 620w, 80 PLUS Bronze, Modular (48A)

Corsair CXM CP-9020103, (CP-9020103-EU) 650w (54A)

Corsair CX CP-9020122 - (CP-9020122) 650w (54A)

Antec NeoECO (NE650M) NE650M, 650w, Modular, 80 PLUS Bronze (50A)

Antec VP700P, 700w (ANT-VP700PC) (35A x 2)



any help would be highly appreciated.
thanks
 
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raisonjohn

raisonjohn

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Yes, among the options you listed, the Antec TruePower Classic (which is based on Seasonic's G Series) is a good choice. Only gripe are the cables are non-modular and the PSU is rated at 40C. http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=382 Note that you can also choose the 650W version (if it's available in your location to save on costs), as that would be more than enough for your GTX 480-rig.

The Antec HCG is also a good quality PSU (rated at 50C oper. temps) and has semi-modular cabling. This is also made by Seasonic.

You can also consider the EVGA GQ 650 (made by FSP) which has great built-quality and performance (http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=454). It is also rated at 50C temps and has semi-modular cabling.

I would eliminate the rest in the list as they are relatively mediocre PSUs compared to the three aforementioned PSUs.
 
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Ash007

Ash007

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Thanks guys for the fast replies.
Although I'm more interested in the Antec I just noticed something that confuses me...
My GPU says it needs 42A min on its 12v rail...
The Antec has dual 12v, 35A each but 1 goes to the CPU & the other to the GPU.
So it's only giving my GPU 35A Correct?
Is that not being underpowered?

The EVGA has a single 54A 12v GPU rail.
What would the rest of the CPU rails get?

I don't mind either of the cables setup.
Thats the only PSU in my region and Its price range.
The Antec HCG is much cheaper than the other 2.
Then the Antec classic
And the EVGA not that far off.

I am planning to build a water cooler for my CPU and and in some RGB lights in too. Might put in my 360gig hdd as an internal as things around the pc is looking messy...
 
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n0ns3ns3

n0ns3ns3

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Corsair CX650M (silver one) is the best among those you've listed.
Antec's HCG is a decent option too. then comes true power.
the rest is basically crap.
and no, you don't need 575w PSU. a good 520w PSU will do the job. of course a good 600-750w PSU would be better for efficiency and noise
 
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Vic 40

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I'm with these two as well.I would look at the GQ as well since nice efficiency on low load since that system of yours doesn't have very high power usage. Looking at that would 550watt already be more than enough for a system like yours.
 
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Vic 40

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To explain a little more,

the Antec Truepower has indeed two rails that can each supply 35A,but the total together supplied is 62A way above what it says for your gpu.
What they mean when asking for more than 42A on the +12V rail is the total what a psu can deliver for the whole system,not the gpu alone.

I think we're almost all on the same page about the EVGA GQ.
 
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raisonjohn

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The GTX 480 has a TDP of 250W (i.e., at 12V, equal 20.833A) and requires 1x 6-pin and 1x 8-pin supplementary PCIE power connectors. Theoretically speaking, the GPU can, but not necessarily will, pull a total of 25A at 12V (or 300W) based on such pins (i.e., ~75W from the 6-pin + ~150W from the 8-pin + ~75W from the PCIe x16 slot).

That is way less than the "42A minimum" you mentioned that the GPU "needs".

As mentioned by Vic 40, such "42A min." pertains to the "minimum PSU +12V rating" for the entire system -- not the GPU alone. 42A x 12V = 504W.

The Antec TP-750C is rated at 744W max. load at combined +12V rails, which is equivalent to 62A (which is 20A more than the minimum for the entire system). It is distributed into 2 rails, each rail having a rated amperage of 35A. In the original ATX12V specs for dual-rails, one rail goes to the CPU, while the other rail goes to the rest. The purpose of such rails being split is for overcurrent protection (OCP), wherein the PSU would shut down if current draw from rail would hit the rail's OCP point, somewhere in that 35A vicinity. Problem with dual-rail is, especially on extremely high-powered components, you have a greater chance to overload one rail before the other. But, in your case, at 35A, the 2nd rail can still provide some ~420W+ of power (more than enough) for the GTX 480 GPU, some HDDs, Fans, etc.

The EVGA GQ 650 is rated at ~648W at +12V, which is equivalent to 54A on its single rail. This means that PSU uses all its ~648W for the entire system (CPU, GPU, HDDs, etc.) with an OCP point somewhere in that vicinity.
 
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lakimens

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35A * 12V = 420W
Unless your GTX480 uses more than that, it's not being underpowered.
I think the EVGA GQ and Antec HCG are the best units here.
 
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Ash007

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Ok so I see what you guys mean...
I also read on another article that some said EVGA is partnered up with super flower PSU makers,
And found this
Super Flower SF-650F14MT Leadex 650W 80 Plus Silver Certified
On special going way below the 3 main PSU we focusing on.

From what I look at it the Antec TPC would work if I do go sli.
Meaning a dedicated PSU for both GPUs..
Not sure if I should wait till we have the black Friday sale then buy it.
But it doesn't hurt to do aso much research beforehand
 
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lakimens

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That's also a good PSU. Review.
 
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turkey3_scratch

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Yeah but probably most multirail PSUs don't follow this because it's just not logical most of the time. We can't just assume what cables go with what rails, really we have to see from either the website or a review.



I've never heard of that website and am hesitant to click "coolenjoy.net". As far as I'm concerned this is not a known PSU review site, unless I be deceived.
 
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lakimens

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It's chinese, I found it on the JonnyGuru forums, so it's most likely good.
 
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turkey3_scratch

turkey3_scratch

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Oh. Alright :)
 
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Ash007

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The review on jonnyguru was for the SF-650F14MG.
Maybe it's a regional thing where the last few letters changes.
What's worse is I don't think I can make it 2month till black Fridays sale. I just gave my current psu away
 
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Ash007

Ash007

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Well I've been looking around my area found few more shops online with the following PSU's...

Corsair CP-9020060 CX600M 600W 80 Plus Bronze certified

Coolermaster RS700-ACABB1 B700 V2 700W 80 Plus Certified

CoolerMaster RS650-ACAAB3 GX 650W 80 Plus Bronze Certified (whole range of Rs from 550 to 700w that's like 6 variants)

Super Flower SF-650F14EG(BK) Leadex II 650W 80 Plus Gold Certified Fully Modular

Corsair CP-9020015 CX750 750W 80 Plus Bronze Certified
These are more expensive by about 15$ from the EVGA...

Also I did a power calculator on the EVGA site it recommended the EVGA 550 b1 PSU. So if they recommend that psu,
The Antec TPC 750 by seasonic
EVGA GQ 650 by FSP
Or Antec HCG 620 by Delta
Should be more than capable...
So I'm basically stuck with making a decision.
 
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Ash007

Ash007

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I know i mistakenly chose the answer.
But seeing as everyone said the evga over the antec...
A lil while ago 1 of the shops had a sale and I bought the evga 750 at the same price as the antec unit. So I guess I don't need to worry about a PSU anytime soon.
Thanks everyone for the help much appreciated ✌
 
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