Computer wont display after new video card

[pokergal]

I installed a new video card 560 gtx 2gb to my dell xps machine and the screen won't display. I replaced the computer with a brand new psu corsair 650 watt and still didn't work. The video card is plugged properly using 2 6pin and the fan is spinning. Also, I uninstall the onboard video card and still didnt work. Please help

 

[refillable]

Are you sure you plug the monitor cable to the card (not the motherboard)? Because if you do that the motherboard should switch to the card automatically.

 

[pokergal]

yes i did. I actually see the beginning of the screen for a quick sec before the screen turns black. I tried to hit f8, f2, and f12 but nothing happen.

 

[wurkfur]

Go into your bios without the card and see if PCI-E is set as the default adapter

AND/OR

Put your old adapter back in and uninstall all previous drivers

AND/OR

Make sure your power supply is up to the task of your new card

 

[amuffin]

Do you have the power cables plugged in? :lol:

 

[pokergal]

i go into my bios under advanced, and I only see cpu config, sys config, power management, and post behavior. I don't see the option to disable my current onboard video card or set the pci e as default. Maybe i am looking at the wrong place?