Do I have enough POWER? ASUS GTX 760 + EVGA NEX750B

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sleepingarrow

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Feb 19, 2014
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I am currently using this power supply

EVGA NEX750B
http://www.evga.com/Products/Product.aspx?pn=120-PB-0750-KR

if you bother to click the "details" tab you will find:
it has 4 rails and each rail has a max output of 20 amps

the vga power cable that goes to the card comes from rail 2 and is strictly being used for the card alone. Which means (I believe) that the graphic card is getting the full 20 amps from that rail which should be a max of 240 watts.

so I am wondering if I have enough power to run my ASUS GTX 760 on a full load.

PLEASE HELP ME and thank you so much for your time everyone

ps: i forgot to mention I have spent about 3 days trying to find an answer to this question using various sources including existing similar questions here...I am not satisfied with the answers I saw.
 
Solution
ModernWarfare
evga is a good powersupply 80+bronze is good enough all full 4 12 volt rails are 20amps maximum the gtx 760 draws 15amps max with 170w max power it will power the whole system with no problem.
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sleepingarrow

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Feb 19, 2014
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just in case anyone has a similar question/problem in the future I also happened to find this quote

"To clarify, the 225W is under total power consumption; meaning your card will draw a MAX of 225W (150W from 8pin and 75w from pcie on your motherboard)."

this applies to the card I have which is the

GTX760-DC2OC-2GD5

http://www.asus.com/Graphics_Cards/GTX760DC2OC2GD5/

(overclocked version from factory)

so technically if I understand this exact card will only draw 150 watts (12.5 amps) from the 8 pin connector and 75 watts (6.25 amps) through the motherboard

the power supply I am using has 4 rails at 20 amps each

http://www.evga.com/support/manuals/files/120-PB-0750.pdf

on page 6 of the manual it shows how each cable comes from which rail

this means that the vga plug from psu is supplying 20 amps solely to the card alone which is more than the 12.5 (the max the card draws, and assuming that you are only running this card alone)

the remaining 75 watts from the motherboards pci is also coming from the 24 pin cable that is solely supplying 20 amps (again more than enough for the mobo and pci slot combined)






long story short, this psu should run a single card system with no problem...maybe sli...but that may be pushing it


in the end I wish I got a single rail psu rated at 650 watts but too late now...tight budget....

this was made incase someone makes my mistake and is curious if they are still capable of running a system


my specs

CPU = i7 4770k
MOBO = Asus z87-a
GPU = Asus GTX 760 OC
SSD = Adata sx900 256 GB
RAM = G.Skill ripjaws x series 8gb 1600mhz
PSU = EVGA NEX750B
ASUS DVD Drive
And about 7 random Cougar fans
 
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