Why wont my GeForce 9800 GT work

[gddivel]

installed GeForce 9800 Gt and it will not work. monitor does not come on. place monitor on the computer and monitor works.

 

[gary1]

This is so vague. Did you plug in the PCIe power connector? Do you have enough power on the PSU? System specs will help.

 

[scout_03]

give more specs of your system

 

[4745454b]

You might need to disable your onboard IGP as well.

 

[Gman450]

place monitor on the computer and monitor works.

Didn't understand that part. Did you disable IGP via BIOS? Did you properly attach the VGA cable to the VGA port of both monitor and GPU?