400Watts PSU Enough to run GTX750??

gavi7566 · May 17, 2015

Hello I am now willling to upgrade my GT630 to a GTX 750. My question is about the PSU whether it is cool with the GTX 750?? And another question is about the compatibility with my processor bottlenecking and all...

my specs

Intel Core i5-3450
8 GB DDR3 1333Mhz
NVIDIA GT630 2GB DDR3
400 watts PSU

i7Baby · May 17, 2015

20A and 400W minimum - from a good quality power supply. What make and model?

Archaic59 · May 17, 2015

I'd save a bit more and get GTX 960. You'll be happier in the long run and have less bottleneck.

wbj707 · May 17, 2015

Yes that is enough juice for your setup.

If you plan on running SLI or feel like upgrading. Go with the Corsair CX750 only $80.
http://www.amazon.com/gp/product/B00ALK3KEM/ref=as_li_qf_sp_asin_il_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=B00ALK3KEM&linkCode=as2&tag=besgamgea-20&linkId=EDR6WRWXXCL3K2LK

gavi7566 · May 17, 2015

i7Baby :

I dont know. It was bundled with my cabinet of cooler master.

i7Baby · May 17, 2015

Good PSUs - http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html#xtor=EPR-8886

JackNaylorPE · May 17, 2015

Power requirements for all nVidia GPUs are here:

(300 watts) http://www.geforce.com/hardware/desktop-gpus/geforce-gtx-750/specifications

http://www.guru3d.com/articles_pages/nvidia_geforce_gtx_750_and_750_ti_review,5.html

Here is Guru3D's power supply recommendation:

GeForce GTX 750 - On your average system the card requires you to have a 450 Watt power supply unit.
GeForce GTX 750 Ti - On your average system the card requires you to have a 450 Watt power supply unit.

If you are going to overclock GPU or processor, then we do recommend you purchase something with a bit more stamina.

endeavour37a · May 17, 2015

Your good to go with 400W, the 750Ti is about $30 more than the 750, would be worth it to spend a bit more for it if you could.

i7Baby · May 17, 2015

gavi7566 :

Then its most likely a very poor quality power supply.

nukemaster · May 17, 2015

20 amps(240 watts @ 12 volts) on a 400 watt power supply is rather low(my 300 watt has 22 or 264 watts @ 12 volts). It is either an older design or poorly made.

The 750 is a VERY power friendly card. In fact, I think it take LESS than a 630, but numbers on paper do not always line up and a newer revision cut the cards power quite a bit..

Please ensure it is not a multi rail unit as those have a combined rating.

Example of a multirail setup. Some show combined watts some show combined amps.

watts / volts = watts
amps x volts = watts

It is easy to go back and forth.

LookItsRain · May 17, 2015

Just buy a new power supply, you have a crap psu i would not trust to power my toaster.

nukemaster · May 17, 2015

Your toaster needs more than 400 watts

LookItsRain · May 17, 2015

nukemaster :

My toaster computer only used 95 when it wasent toasted.

gavi7566 · May 17, 2015

My PSU model is - Cooler Master Elite Power RS400. Can it run GTX 750???
Update - sorry its +12V1@16A, +12V2@16A
nd combined would have 16+16= 32A which is great i gress.
i assumed my psu would have 20 amps

clfz · May 17, 2015

Check if you have a X6 pin connector, then you can run a decent GTX750, I would recommend a 450W psu, I have a TT 600W with my Strix GTX750ti

nukemaster · May 17, 2015

gavi7566 :

You can not always add the rail on a power supply, for that reason alone they have a combined rating.

Is this your unit? I did the math for you

clfz, That is some good overkill for a 750ti, but you will NEVER stress it. I have the GTX 650ti on the power supply in my first image(still never saw over 180 at the wall[ if i trust APC ] with prime 95+ video stress)

clfz · May 17, 2015

Right, 600W is more than enough for a 750 haha, I'm still updating my rig (C2Q+4ram at the moment), need enough power for 2-3 years more

400Watts PSU Enough to run GTX750??

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