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Power Supply Choice Help

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March 21, 2012 11:40:53 AM

Hey Guys,

I know this is a question that's probably asked a million times on here, but I was hoping to get some help. My power supply started to make a pretty goofy whining noise finally after 3 years of use (Raidmax Aurora) so I can only assume it's on its last legs and needs to be replaced. I wasn't looking at anything too expensive and I happened across what I thought was a steal of a deal:

APEVIA ATX-AQ700W-BK 700W ATX12V / EPS12V SLI Ready CrossFire Ready Power Supply

It comes out to be about $33 shipped which just seems like a steal for something that's fairly well rated. Right now my current system is this:

2 x 2GB)DDR2 SDRAM DDR2 800
500GB 7200 RPM SATA 3.0Gb/s HDD
AMD Phenom II X4 940 Black Edition Deneb 3.0GHz Socket AM2+ 125W
HIS H485QT512P Radeon HD 4850 512MB 256-bit GDDR3
BIOSTAR TA790GXB A2+ AM2+/AM2 AMD 790GX ATX AMD Motherboard
With a CD and DVD drive and all the periphals.

Now I plan on upgrading to a 6850 in the near future (By May 15th ;)  bonus points if you know why) and was curious if this PSU was okay. Based on hwcompare.com and comparing to your list of cards and their specs this card needs 125w so it should need less amps per rail than a 5850 which 36 is recommended. Based on your thread it states multi rail setups need to be combined so the one listed above is technically 58amps on the 12v rail correct? That should be more than enough to run my current setup with the 6850 inserted shouldn't it?

I know apevia isn't touted as being a great PSU brand like corsair but for that price it seems like a steal to me. If you think I'm crazy feel free to poke me with a sharp stick!

More about : power supply choice

a c 243 ) Power supply
March 21, 2012 11:55:39 AM

godfree51586 said:
Hey Guys,

I know this is a question that's probably asked a million times on here, but I was hoping to get some help. My power supply started to make a pretty goofy whining noise finally after 3 years of use (Raidmax Aurora) so I can only assume it's on its last legs and needs to be replaced. I wasn't looking at anything too expensive and I happened across what I thought was a steal of a deal:

APEVIA ATX-AQ700W-BK 700W ATX12V / EPS12V SLI Ready CrossFire Ready Power Supply

It comes out to be about $33 shipped which just seems like a steal for something that's fairly well rated. Right now my current system is this:

2 x 2GB)DDR2 SDRAM DDR2 800
500GB 7200 RPM SATA 3.0Gb/s HDD
AMD Phenom II X4 940 Black Edition Deneb 3.0GHz Socket AM2+ 125W
HIS H485QT512P Radeon HD 4850 512MB 256-bit GDDR3
BIOSTAR TA790GXB A2+ AM2+/AM2 AMD 790GX ATX AMD Motherboard
With a CD and DVD drive and all the periphals.

Now I plan on upgrading to a 6850 in the near future (By May 15th ;)  bonus points if you know why) and was curious if this PSU was okay. Based on hwcompare.com and comparing to your list of cards and their specs this card needs 125w so it should need less amps per rail than a 5850 which 36 is recommended. Based on your thread it states multi rail setups need to be combined so the one listed above is technically 58amps on the 12v rail correct? That should be more than enough to run my current setup with the 6850 inserted shouldn't it?

I know apevia isn't touted as being a great PSU brand like corsair but for that price it seems like a steal to me. If you think I'm crazy feel free to poke me with a sharp stick!

1. It's very rare that the rail ratings are additive, and the chances of an Apevia being able to provide all of it's rated power to the 12v are mythical.
2. Apevia is crap, no such thing as a good deal on crap, unless you're a farmer
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a c 287 ) Power supply
March 21, 2012 1:23:29 PM

http://www.apevia.com/ProductsInfo.asp?KEY=ATX-AQ700W-B...
Apevia site shows the max combined rating of its 12 V rails to be 528 W(44A), not the 58 A the label would have you believe so its actually really crappily rated and made. Its an old horribly inefficient design that still has a voltage selector switch on it.


If you really want to buy that just stick those $33 in a hole in the ground for later and get a good PSU from the start because that one is either going to die peacefully on you, or die suddenly risking your other components.


You should never consider a PSU with a red voltage selector switch and no 80+ certifications these days, it indicates that it is a design from many years ago.
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March 22, 2012 5:28:15 AM

Hmm, I guess I'll hold off on that apevia and look for a better single rail setup (they're just easier to understand :p )

Anyone happen to know a good ~$50 shipped PSU that would run my rig (with the 6850) Was looking at an OCZ from tiger direct for $45 http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=927369&CatId=5431 Its 80 PLUS Bronze certified with 38amps on a single rail but the $70 cost before rebate is killing me. Would love something with a smaller rebate but a lower up front cost. And I hate prepaid cards but that one is hard to avoid :\ just can hardly ever find something small for $10 to buy on those damn things lol
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a c 158 ) Power supply
March 22, 2012 10:53:30 AM

Rosewill Hive 550W: 38A on the 12V rail and fully modular for $56 after instant discount: http://www.newegg.com/Product/Product.aspx?Item=N82E168...
Discount ends 3/25...
Review: http://www.anandtech.com/show/5674/rosewill-hive-550w

Rosewill Capstone 450W is out of stock, but with 37A on the 12V rail it would be sufficient, too: http://www.newegg.com/Product/Product.aspx?Item=N82E168...
The OEM is Superflower - great series of PSUs that are 80+ Gold.
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March 22, 2012 7:40:11 PM

Yeah I was looking at both of those and was going to get the HIVE last night when they had $20 instant discounts before but when I went to apply it in cart it said my email wasn't eligible. NOW the discount seems to have been totally pulled and isn't listed on the site at all. So much for 3/25 eh? Back to being listed at $70. Darn you newegg lol.
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March 23, 2012 6:07:17 AM

Thanks for the heads up to that one, I actually found it cheaper on newegg incase anyone is interested:

OCZ ZS 550w With 15% off, $25 rebate, $20 gift card (will be using for my 6850 i mentioned earlier ;)  ) I'm getting this bad boy for 22.99... can't beat that!
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March 25, 2012 4:27:48 PM

Best answer selected by godfree51586.
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