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Can anyone recommend PSU?

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January 7, 2012 3:53:07 PM

I will be using the i5 2500k possibly oc'd and the evga gtx 570 superclocked to 797 Mhz. What wattage will be required? Are there other components im not listing that influence the psu like hard drive mobo fans etc etc..?

More about : recommend psu

January 7, 2012 3:59:05 PM

An XFX 550w should work.

Not any PSU with 550w, I mean specifically that one.
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January 7, 2012 4:21:45 PM

Lennon95 said:

Are there other components im not listing that influence the psu like hard drive mobo fans etc etc..?

Not really. Fans represent an almost negligible load - 3 or 4 per 12 volt amp. Two hard drives and an optical will consume about 50 watts.
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January 7, 2012 4:31:43 PM

nVidia can :) 

http://www.geforce.com/Hardware/GPUs/geforce-gtx-570/sp...

Thermal and Power Specs:
97 C - Maximum GPU Temperature
219 W - Maximum Graphics Card Power
550 W - Minimum System Power Requirement
Two 6-pin - Supplementary Power Connectors

So 550 for one and 769 for two ....non overclocked


http://www.overclockersclub.com/reviews/asus_gtx570_rev...

In the above, system load for one 570 stock was 409, the factory overclocked Asus 570 was 552 watts for the system

552 - 409 = 143 watts added for the OC.


Given the draw of 552 watts in the reviewers testing, I would not use a 550 watter for this system. Then again, I'd never buy a 550 watter as ya only save like $5 versus a quality 650 watter.

Figure ya whole system here .....

http://extreme.outervision.com/psucalculatorlite.jsp
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January 7, 2012 4:33:35 PM

Use the PSU calculator here: http://www.extreme.outervision.com/psucalculatorlite.js... and then choose a quality PSU, not just something cheap. A quality modern PSU has full range active PFC (no little voltage switch) and some level of 80+ certification for efficiency. Seasonic, Antec, Corsair, XFX, and Enermax/LEPA are among the better brands.
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January 7, 2012 6:42:27 PM

The webpage EVGA made specifically for the 570 superclocked card says 550w for a full system and that is talking any old 550w not necessarily a Seasonic one.

The OP said they would OC the processor, not that they would OC the video card. The way I read it, anyway.

The XFX 550w should be more than capable of handling such things.

If we are talking about some different set of things, though, then maybe not.

A 650w would not be a bad idea if the video card will be massively OCd.

Either way, both the XFX 550w and 650w can reach much higher than stated wattage for those times when it is necessary to do so.

BTW, are things going to be played regularly in 8xAA or is this less of a benchmarking system and more of a regular gaming system?

If torture testing the GPU will be commonplace, opt for a Seasonic with 100w or 200w more than the one I suggested.
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January 7, 2012 6:54:10 PM

Raiddinn said:
The webpage EVGA made specifically for the 570 superclocked card says 550w for a full system and that is talking any old 550w not necessarily a Seasonic one.

The OP said they would OC the processor, not that they would OC the video card. The way I read it, anyway.

The XFX 550w should be more than capable of handling such things.

If we are talking about some different set of things, though, then maybe not.

A 650w would not be a bad idea if the video card will be massively OCd.

Either way, both the XFX 550w and 650w can reach much higher than stated wattage for those times when it is necessary to do so.

BTW, are things going to be played regularly in 8xAA or is this less of a benchmarking system and more of a regular gaming system?

If torture testing the GPU will be commonplace, opt for a Seasonic with 100w or 200w more than the one I suggested.


How are these 2?

http://www.newegg.com/Product/Product.aspx?Item=N82E168... --> Cheaper one idk the diff??
http://www.newegg.com/Product/Product.aspx?Item=N82E168... --> more expensive.

i will be attempting to max out most games... can this be done with the evga gtx 570 @ 797 MHz and i5 2500k @ 3.3 GHz?
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Best solution

January 7, 2012 7:01:21 PM

The more expensive one is "modular" which means you can keep the cables you don't need disconnected from the PSU so they aren't cluttering up things inside the case.

Otherwise, the two are mostly the same.

This PSU is also a 750w Seasonic OEM PSU

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

That is not modular, but it does cost significantly less after rebate. I have processed a rebate through XFX for my own XFX 650w and they gave me the rebate credit card quickly and without fuss.

All of them have 62A on the 12V and they all have the same OEM with (pretty much) means they will all power systems the same.
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January 7, 2012 7:38:10 PM

Raiddinn said:
The more expensive one is "modular" which means you can keep the cables you don't need disconnected from the PSU so they aren't cluttering up things inside the case.

Otherwise, the two are mostly the same.

This PSU is also a 750w Seasonic OEM PSU

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

That is not modular, but it does cost significantly less after rebate. I have processed a rebate through XFX for my own XFX 650w and they gave me the rebate credit card quickly and without fuss.

All of them have 62A on the 12V and they all have the same OEM with (pretty much) means they will all power systems the same.


is the one you suggested better than the ones i did? i really want to be sure about my psu because the last one i had i chose the cheapest option and it ended up failing within a few hours of use
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January 7, 2012 8:19:15 PM

The X-750 is modular and more efficient (80+ Gold rather than Bronze), but all of those PSUs are actually made by Seasonic (they make the PSUs for XFX), so any of them would be a good choice for your system.
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January 7, 2012 8:43:24 PM

Best answer selected by lennon95.
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