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2xGTS570s +gt220, Overclocked to the max, can i dual PSU? - Page 2

post #11 of 14
Quote:
Originally Posted by Sin0822 View Post
there is no time to sell my PSU i already have I am going to go with dual PSU, i have a server case built for it, unles syou have some reason I shouldn't. i need the power by tuesday.
the reason you shouldn't is that it will be hell on your vregs on your mobo, graphics cards, and the PSUs themselves.

you will have two different PSUs fighting each other to regulate the 12v rail to slightly different specs which will cause dangerous spikes and drops for your main components to deal with and it will cause your Vregs to overwork and possibly burn out and it can also cause instability in your graphics and CPU overclocks before the Vregs actually do give up.
post #12 of 14
Thread Starter 
yes i understand voltage regulation, but the power from the motherboard that goes to the PCi-E slots I want to know if that is regulated by the motherboard or directly by athe PSU. if its regulated by the PSU then yes they woudl conflict, if not then they wouldn't.

i also wonder if using two exact same PSUs would make them still fight over teh 12v rail as they regulate 12v voltage the same, but the load on each PSu woudl differ so idk if htat woudl be true.

i knwo you can safly use two PSUs one for mobo and cpu the other for drives and pheripherals, my qeustion specifically is if a video card's 12v power would be considered like the peripheral power. Looks liek i have to dig into some data sheets.
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post #13 of 14
you wouldnt need the 220 for benching, unless you are trying to comparisons on games that benefit from physx.

i cant imagine the new chip drawing as much power as the older i7's, although i'm not sure. I don't like the idea of 2 psu, although it can work. i would really try to pick something up around 850w if not more.
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post #14 of 14
Thread Starter 
i asked over at jonnyguru forums, i was told it is ok to do, and that i do not need same PSU, just that i have to load the 5v and 3.3v rails, so i am going to use some 10watt resistors and make a heater(for myself) for when i take the system into the cold.

If anyone has proof or wants to advise against it please do so like kevin did, and i might reconsider, i am still debating. I budget myself very tightly, and I have $400 to spend. This was I can get another c300, some 2000mhz dual channel kit, and a xfx 650xxx just to be safe I will usze same PSU, plus thy have a lot of connectors.
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Intel 5960X Extreme Edition @ 4.5GHz Always Changing VisonTek R9 290 G.Skill Ripjaws 4 16GB (4x4GB) DDR4 @ 3200MHz 
Hard DriveHard DriveHard DriveCooling
Samsung 128GB M.2 PCI-E 4x SSD Apotop 256GB SSD 1.82TB NAS Noctua NH-D15 with both fans 
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Win7 Pro Enermax 1000W 
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