U1 psu replacement for evga Hadron air

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theDoItYourselfAmeture

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Jul 28, 2013
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So I want to build a high end system in an itx case and saw the Hadron air from evga, and wile the 500W psu with 40amps is a monster and a great deal I don't trust Evga's statement that it will run a 780 ti and a titan, and the online psu calculators say that my build will exceed 500 watts (everything at %100 load) Is there a replacement for their u1 psu that is 550 or 600 watts and if not what other cases are of similar dimensions. (looked at the silver stone Sugo Series SG09B but was kinda off by its width of 8 inches, kinda picky I know but I want it to be as small as possible.

planned specks

i7 4770k overclocked to 4.2
gtx 780ti overclocked to 1200Mhz
8gb 1866 ram
120gb ssd
1tb hdd
blu ray drive (got lots of movies)
msi itx gaming motherboard

 
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ko888

ko888

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Feb 18, 2009
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theDoItYourselfAmeture

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Jul 28, 2013
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thanks for the help, I just dont want to run a 500 watt, even if its from evga and has a gold rating, I going to get the 600w
 
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LePhuronn

LePhuronn

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The PSU in the Hadron is more than sufficient to run a top-end graphics card. I'm using the Silverstone modular SFX 450W Gold to power my GTX Titan with zero issues.

Do that maths - 75W from the PIC-E slot, 75W from the 6-pin PCI-E cable, 150W from the 8-pin PCI-E cable. That's an absolute maximum of 300W draw from the card. that leaves you 200W free for the rest of the system. Plus, the graphics card will never draw full power under normal use, even overclocked. Same an be said for the other components.
 
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ko888

ko888

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Feb 18, 2009
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There are some non-reference design GeForce GTX 780 Ti cards that use two 8-pin PCI Express supplementary power connectors.

Examples:
ASUS GTX 780 Ti DirectCU II OC 3 GB [GTX780TI-DC2OC-3GD5]
Palit GTX 780 Ti JetStream 3 GB
EVGA GTX 780 Ti Classified 3 GB [03G-P4-2888-KR]

The ASUS and EVGA models, in the examples above, definitely can draw more than 300 Watts when overclocked above their factory overclocks. GPGPU usage also has a higher power draw than gaming.
 
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