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Will a HD 6950 or 6970 work with this PSU?

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a c 1192 ) Power supply
December 18, 2011 5:49:31 PM

Since the Radeon HD 6970 consumes more power than the Radeon HD 6950 and you want the power supply to be able to handle either one ...

For a system using a single Radeon HD 6970 graphics card AMD specifies a minimum of a 550 Watt or greater power supply. The power supply should also have a combined +12 Volt continuous current rating of 38 Amps or greater and have at least one 6-pin and one 8-pin PCI Express supplementary power connectors.

The Antec NEO ECO 520C, with its +12 Volt continuous current rating of 40 Amps and having one 6 pin and one 6+2 pin PCI Express supplementary power connectors, just meets the requirements.
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December 18, 2011 6:04:11 PM

ko888 said:
Since the Radeon HD 6970 consumes more power than the Radeon HD 6950 and you want the power supply to be able to handle either one ...

For a system using a single Radeon HD 6970 graphics card AMD specifies a minimum of a 550 Watt or greater power supply. The power supply should also have a combined +12 Volt continuous current rating of 38 Amps or greater and have at least one 6-pin and one 8-pin PCI Express supplementary power connectors.

The Antec NEO ECO 520C, with its +12 Volt continuous current rating of 40 Amps and having one 6 pin and one 6+2 pin PCI Express supplementary power connectors, just meets the requirements.


Would it give me any problems at all? Or, how about if I get a 6950 and bios switch it to a 6970. Will it still use the same power as the 6970 or will it keep the power consumption properties of the 6950?

And if it does keep the 6950 consumption, will my power supply give me any problems? ;/ I don't want blue screens and crashes.

And thanks for the great reply @ above :) 
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a c 1192 ) Power supply
December 18, 2011 6:27:56 PM

kandon said:
Would it give me any problems at all? Or, how about if I get a 6950 and bios switch it to a 6970. Will it still use the same power as the 6970 or will it keep the power consumption properties of the 6950?

And if it does keep the 6950 consumption, will my power supply give me any problems? ;/ I don't want blue screens and crashes.

And thanks for the great reply @ above :) 

My specification of 38 Amps is to handle the scenario where if you were to run FurMark or OCCT GPU stress testing the power supply would still be able to provide enough power to the rest of the system.

Under typical gaming load a reference clocked Radeon HD 6970 itself will only be drawing 15.4 Amps from the +12 Volt rail.

If you were to run FurMark the current draw from the +12 Volt rail will jump up to 23.9 Amps just for the Radeon HD 6970 graphics card itself.

If you don't intend on running FurMark or OCCT GPU stress testing you will be fine.

For a system using a single Radeon HD 6950 graphics card AMD specifies a minimum of a 500 Watt or greater power supply. The power supply should also have a combined +12 Volt continuous current rating of 30 Amps or greater and have at least two 6-pin PCI Express supplementary power connectors.
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December 18, 2011 6:36:11 PM

ko888 said:
My specification of 38 Amps is to handle the scenario where if you were to run FurMark or OCCT GPU stress testing the power supply would still be able to provide enough power to the rest of the system.

Under typical gaming load a reference clocked Radeon HD 6970 itself will only be drawing 15.4 Amps from the +12 Volt rail.

If you were to run FurMark the current draw from the +12 Volt rail will jump up to 23.9 Amps just for the Radeon HD 6970 graphics card itself.

If you don't intend on running FurMark or OCCT GPU stress testing you will be fine.

For a system using a single Radeon HD 6950 graphics card AMD specifies a minimum of a 500 Watt or greater power supply. The power supply should also have a combined +12 Volt continuous current rating of 30 Amps or greater and have at least two 6-pin PCI Express supplementary power connectors.


Okay so if I get the 6950 it shouldn't have any problems even running Furmark right?

What if I bios switch it to a 6970? Will it use the 6970 power consumption or the 6950?
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a c 1192 ) Power supply
December 18, 2011 6:51:03 PM

kandon said:
Okay so if I get the 6950 it shouldn't have any problems even running Furmark right?

What if I bios switch it to a 6970? Will it use the 6970 power consumption or the 6950?

An unmodded Radeon HD 6950 is well within the Antec NEO ECO 520C's capability.

If you can still find a Radeon HD 6950 that you can unlock and overclock I can see the modded card itself drawing up to 21 Amps from the +12 Volt rail when running FurMark which is still safely within the Antec NEO ECO 520C's capability
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December 18, 2011 7:07:24 PM

why not grab the Antec NEO ECO 620C 620W Continuous Power ATX12V v2.3 / EPS12V 80 PLUS Certified Active PFC Power Supply - only $7 bucks more, $64.99 + $2 more shipping.

Has 48amps on the 12v rail
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a c 1192 ) Power supply
December 18, 2011 7:12:56 PM

My assumption was that the OP already has the Antec NEO ECO 520C, as that was the way the original post came across.
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December 18, 2011 7:26:04 PM

ko888 said:
My assumption was that the OP already has the Antec NEO ECO 520C, as that was the way the original post came across.


I do already have it, but I can still RMA it and get the 620w neo eco, but I don't know if I really need to. It's a hassle, and if I don't have to I don't want to, but I'm still not 100% sure:

will I experience any problems with it? Even if I do run furmark, I don't want to have problems lol. I'm talking about the 6950 unlocked to 6970 specs.
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a c 1192 ) Power supply
December 18, 2011 7:34:37 PM

kandon said:
I do already have it, but I can still RMA it and get the 620w neo eco, but I don't know if I really need to. It's a hassle, and if I don't have to I don't want to, but I'm still not 100% sure:

will I experience any problems with it? Even if I do run furmark, I don't want to have problems lol. I'm talking about the 6950 unlocked to 6970 specs.

The Antec NEO ECO 520C is the exact same design as the Seasonic S12II Bronze 520W (SS-520GB) which received excellent reviews from Hardware Secrets and jonnyGURU.com. Seasonic is the OEM for the Antec NEO ECO 520C.

It should have no problem running your system with a single modded and overclocked Radeon HD 6950 running FurMark.
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December 18, 2011 7:39:57 PM

Best answer selected by kandon.
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December 18, 2011 7:40:12 PM

Thanks a bunch. Now I don't have to go through more trouble RMAing my current PSU. :) 
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December 18, 2011 7:53:13 PM

Oh sorry, i didnt realize you already had the psu haha
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