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Can my 300W PSU run GTX 650, HD 7750, or GT 640?

I have a Shuttle XPC which has an old Radeon X800 GTO in it. I can't run modern games on it because it has Shader 2.0.

The package has a 300 watts PSU. However, the PSU specs indicates: +12V1: 16A / +12V2: 16A.
Here is the a link to the PSU: http://www.shuttle.eu/fileadmin/resources/download/docs/spec/accessories/PC61J_e.pdf

Will the new GTX 650 run on the 300W PSU on normal use and some light gaming on a 1280x1024 monitor? Should I pick the GT 640 or the HD 7750 instead because it does not require a 6-pin power connector?

I want to play Borderlands 2 so I'm getting a new video card. Thanks in advance!
9 answers Last reply Best Answer
More about 300w 7750
  1. PSU/wattage expert?
  2. Best answer
    maybe for the 7750/640. I would not recommend using it on the 650, as it requires the 6 power pin which brings it to a new level of power consumption.
  3. Best answer selected by boyabunda.
  4. Okay, I'll just go for the 7750. Thank you very much!
  5. A GeForce GTX 650 would work fine with the Shuttle PC61J 300 Watt power supply since the power supply has a combined +12V continuous current rating of at least 20 Amps and has one 6-pin PCI Express supplementary power connector.
  6. ko888 said:
    A GeForce GTX 650 would work fine with the Shuttle PC61J 300 Watt power supply since the power supply has a combined +12V continuous current rating of at least 20 Amps and has one 6-pin PCI Express supplementary power connector.


    Oh okay, I thought it's only 16 Amps because of the "+12V1: 16A / +12V2: 16A" specs written on the PSU.

    I want the GTX 650 because of the low idle power consumption. I saw it here LINK: http://www.guru3d.com/articles_pages/geforce_gtx_650_msi_power_edition_review,5.html

    Thank you very much for your comment. I will get the GTX 650.
    You should have the best answer. :D
  7. Actually you would be more than able to use a 650 it has a tdp of 64 watt, I use mine that I just bought to replace my 640 and it runs almost everything 75-100% better :)
    With. Out using the extra 6-pin power connection :)
  8. Skyprey said:
    With. Out using the extra 6-pin power connection :)


    GTX 650 can run games without plugging the 6-pin power connector? Okay, thanks! Definitely will buy the 650! :D

    Thanks guys. This site is awesome.
  9. This topic has been closed by Mousemonkey
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