Can I run GTX650 using my 450watt smps

jayadratha · Mar 30, 2013

I have a local 450watt SMPS in my system.
https://dl.dropbox.com/u/62937817/2013-01-25%2023.14.05.jpg
above link is the power ratings of that SMPS.
I want to buy GTX 650. I saw that it required 400 watt smps.
Is it reliable to run GTX 650 in my SMPS??
SMPS doesn't have 6pin power cable. but zotac provide a dual 4pin power cable to 6pin power cabler converter.
Please help....

Deleted member 217926 · Mar 30, 2013

Your power supply only lists 19 amps on the 12v rail for 228 watts on the 12v rail. If that was a quality power supply it would be listed as a 250w model. Don't try it. You need a power supply that can actually put out its rated voltage. Corsair, Seasonic, PC Power and Cooling, XFX, Silverstone, Enermax, OCZ or Antec for quality.

DComander1x · Mar 30, 2013

jayadratha :

You will need to upgrade that power supply to a 600w to run that graphics card, otherwise it will blow your power supply.

jayadratha · Mar 30, 2013

I can understand that 12volt rail is only 19A so wattage is 228.
That means it is actually a 250watt smps?? 450watt tag is fake??
Is the wattage of SMPS is only depends on 12volt rail?

jayadratha · Mar 30, 2013

DComander1x :

Nvidia said that 400watt is required. May be my 450watt smps is actually a 250watt but GTX 650 can run on a 450watt coolermaster or corsair. My friend running it on cooler master 500watt

ASHISH65 · Mar 30, 2013

I believe you are from india so i suggest get hd 7750@rs 6700 as it performs mostly same as gtx 650 but it is at higher price.

yes +12 is imp.get new psu.i suggest get corsair cxv2 430w

jayadratha · Mar 30, 2013

ASHISH65 :

yup I'm from india.

tell me one thing. in cooler master extreme 600watt there has dual 12v rail. both off are capable of 18A. so apparently it is 12*36=432watt. so why it is 600watt in tag?

ASHISH65 · Mar 30, 2013

forget cm psus

read these properly and understand

- http://www.thinkdigit.com/forum/power-supply-cabinets-mods/104472-basic-guide-right-power-supply.html

- http://www.thinkdigit.com/forum/power-supply-cabinets-mods/147389-power-supply-blacklist-thread-newbies.html

Deleted member 217926 · Mar 30, 2013

Almost all the components in a modern computer run from the 12v rail. Years ago this was not the case and the other rails mattered more. Now the 12v rail is really all you need to worry about. All high quality power supplies very close to the same 12v watts as total watts.

Example: The Corsair TX 650 supplies 54 amps for 648 watts on the 12v rail alone.

Your power supply adds the rails that are not even used much as a large part of the total power.

Deleted member 217926 · Mar 30, 2013

jayadratha :

When a power supply lists dual rails you only add the 2 in a very few cases. Most of the time each rail is listed as the maximum that the rail can supply. Coolermaster power supplies are not very good except the Silent Pro series.

Deleted member 217926 · Mar 30, 2013

ASHISH65 :

^ I like those guides!

jayadratha · Mar 30, 2013

ASHISH65 :

Is corsair cx500 is good?

Deleted member 217926 · Mar 30, 2013

Yes. The CX line is very good for the price.

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Can I run GTX650 using my 450watt smps

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