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New graphics card doesn't show up in device manager

I have just installed a ASUS geforce gt630 2gb gddr3 pci express graphics card but it doesnt show up in my device manager. I have insured its installed correctly. My computers model number is s5623w. Any help please? I spent 9.5 hours trying to get it to work and nothing has worked. Any advice will help.
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  1. Did you turn-off the integrated graphics option ?

    Try the GPU on another system, see if it gets detected there !

    What is the wattage of your PSU ?
  2. lonewolf7 said:
    Did you turn-off the integrated graphics option ?

    Try the GPU on another system, see if it gets detected there !

    What is the wattage of your PSU ?


    I turned of the integrated graphics and it still doesnt work. I dont have another computer to test the gpu on. The wattage is only 220W with 16amps, Now i was told that I need a 300W and 20A to run the graphic card. It says that on the graphic card box also. But im having a hard time finding a psu that has that preformance level and will still fit in my hp slimline
  3. Best answer
    Try to test the GPU on another PC(friends/family/work), if it works there then think of another decent PSU. The wattage of your current PSU is really low by todays standard.

    You can also try by clearing the CMOS settings, you have to remove the CMOS battery for atleast 15 minutes.

    GT630 is a low power card, so it will not consume 300W and 20A. Hardly that card requires 60-65W on max load and 5-6A. Makers always inflate the wattage to stay safe. I think that GPU doesn't require any 6 pin PCI-E connector from PSU. So its a below 75W card.

    So first make sure the GPU is working, then think of a Cabinet and PSU. Or borrow a more powerful PSU from someone to test. Good luck.
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