Power problem

Hi

First time posting here. I'm a Mac guy but I'm trying to fix a problem
with the wife's PC.

When starting her computer today, there was an error message about the
Radeon 9800Pro video card not connected to the power supply.

I knew the card had been connected ever since we had that PC built, 46
months ago but I nevertheless opened the case and checked carefully and
indeed the connector leading to the power supply, was tightly inserted
into the proper slot.

I replaced the video card with an old Radeon 8500 and voila, my wife
can use her PC again.

Now, my question ! Since the whole PC has power, I know it's not the
power supply. How do I determine if the problem lies with the connector
that goes into the card or if the video card is toasted ?

thanks

The only real way to check is with a multimeter to measure the voltages at the video connector. Some power supplies use the same leads as to the drives and some have seperate power lines for the graphics, if your is the later then it could be the PSU is faulty. If it uses the same power as the drive connectors then it could be one of the connectors. If there is correct voltage on all pins then your card is faulty.