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GTX 660 in a 300W PSU possible?

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  • Graphics Cards
  • Gtx
  • Power Consumption
  • Graphics
Last response: in Graphics & Displays
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September 17, 2012 12:08:31 PM

Hello everyone,

I have this PSU: http://www.shuttle.eu/products/xpc-accessories/pc61j/
It says:
- Total combined output is 300W max.
- DC voltage output, max. output current:
- +12V1: 16A
- +12V2: 16A

Can the PSU run a GTX 660?

I run the PSU calculator in the Shuttle website. It said my system can run a GTX 460 which has a higher power consumption than a GTX 660.
Here's the photo:


Can my setup really run a 660? Maybe a 650? Will my PSU explode? :ouch:  I want a Geforce card for PhysX in Borderlands 2.

Thanks!

More about : gtx 660 300w psu

September 17, 2012 12:14:31 PM

it all depends on what the power draw of the other components in your computer draw, in that picture it shows you using an i3, so you figure around 65w for the cpu, the 660 has a max power draw at 140w so maxing out both components at once will lead you to around 205w, that is not counting your hard drive, fans, RAM, motherboard power and other things like usb drives. id say it could run it, but i wouldn't recommend trying it. if you have some spare cash upgrade to something around 500w, you can find them pretty cheep ~$50 for a decent brand.
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a b U Graphics card
September 17, 2012 12:18:01 PM

You can try it and see what happens, but I not advise you doing this. The minimum system power requirement for a GTX 660 is 450W.
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a b U Graphics card
September 17, 2012 12:18:44 PM

i definitely won't try, it will surely be on the verge of starving for power, if it even powers on

always get at least 20% more than needed - the inrush current when powered on is not factored in either
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September 17, 2012 12:36:06 PM

Thanks for the quick replies.

I was confused because I've read in the product feedback for the same Shuttle XPC (had the same 300W PSU) in Newegg that other people were able to run a HD 5850, HD 6850, or a GTX 460.

But I'll go for your advices and just go for the GTX 650 just to be in the safe side. :) 

Thanks guys!
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a b U Graphics card
September 17, 2012 12:43:23 PM

It may work, but I wouldn't risk it with a PSU that came with your case..

Also PSU's are usually at their most efficient at around 50% load so its not a good idea to run them on the verge.
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September 17, 2012 3:14:13 PM

Please don't even try this, not worth the risk at all.
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September 17, 2012 3:20:02 PM

I have a 300w PSU and using 7750 with no problems. Could be another alternative that's similar in performace to the 650 and I know it works especially since it doesn't even need a 6 pin whereas a 650 does.
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a c 133 U Graphics card
September 17, 2012 3:26:59 PM

yialanliu said:
I have a 300w PSU and using 7750 with no problems.


Because the 7750 sips power, doesn't even need its own power connectors. So that a max possible draw of 75W (much likely less than that).

I'm of the opinion that you shouldn't try it. A generic PSU of that low wattage isnt to be trusted with anything, let alone a graphics card that's worth its cost 5x over.

Also as a single 12v rail will only provide 16A, that means you only have 192W to work with on GPU draw.
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a b U Graphics card
September 17, 2012 3:53:33 PM

gardoversoza said:
Hello everyone,

I have this PSU: http://www.shuttle.eu/products/xpc-accessories/pc61j/
It says:
- Total combined output is 300W max.
- DC voltage output, max. output current:
- +12V1: 16A
- +12V2: 16A

Can the PSU run a GTX 660?

I run the PSU calculator in the Shuttle website. It said my system can run a GTX 460 which has a higher power consumption than a GTX 660.
Here's the photo:
http://i1244.photobucket.com/albums/gg574/gardoversoza/e6f7fcc9.jpg

Can my setup really run a 660? Maybe a 650? Will my PSU explode? :ouch:  I want a Geforce card for PhysX in Borderlands 2.

Thanks!

1. Yes
2. Yes
3. Would put less of strain on the psu
4. Doubt it, Shuttle has been around for a while

660 is actually rated at 10 watts less than an oem 460

Running the Heaven bench ( simulates a game like load ) with a stock I5-2500K, an I3 will use a bit less under the same work load
http://www.bit-tech.net/hardware/2012/09/13/nvidia-gefo...

202 watts using a psu that's roughly 83% efficient, that's about a 168 watt DC load or about 56% of the power supplies capacity

If you plan on trying to overclock the snot out of it and run Furmark 24/7 to check the stability it's not enough
If you intend to use it for gaming for a few hours a day it's fine


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a b U Graphics card
September 17, 2012 7:28:56 PM

I'd skip the 650. It is too weak for the price it goes for. What is your budget btw?
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September 18, 2012 2:53:30 AM

delluser1 said:
1. Yes
2. Yes
3. Would put less of strain on the psu
4. Doubt it, Shuttle has been around for a while

660 is actually rated at 10 watts less than an oem 460

Running the Heaven bench ( simulates a game like load ) with a stock I5-2500K, an I3 will use a bit less under the same work load
http://www.bit-tech.net/hardware/2012/09/13/nvidia-gefo...

202 watts using a psu that's roughly 83% efficient, that's about a 168 watt DC load or about 56% of the power supplies capacity

If you plan on trying to overclock the snot out of it and run Furmark 24/7 to check the stability it's not enough
If you intend to use it for gaming for a few hours a day it's fine



This is exactly what I plan on doing. A buddy of mine wants to play Borderlands 2. He said my Shuttle XPC was godsend for LAN parties. I want a video card that will play all the modern games within reasonable settings without upgrading my PSU.

Also, I found this NCIX Tech Tips video on Youtube about Shuttle XPCs: http://www.youtube.com/watch?v=toPSItZ7MII

The same 300W PSU was able to power a GTX 560 (non ti) running the CPU and GPU benchmark -- power consumption was 285-290 watts (in about the 8:15 minute mark in the video).
However, that was running Prime95 and Furmark.
So maybe with normal use and some moderate gaming I'm good to go with the 660. :D 

Thanks delluser1 and all of you guys. Thanks!
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September 18, 2012 2:54:54 AM

Best answer selected by gardoversoza.
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