Replacing AGP card prevents boot

[mike420]

I have a very odd problem with my Dell Workstation (Precision 620).
Everything points to the fact that the video card broke down:
the screen is scrambled, etc. The AGP bus on this machine is
"AGP Pro: 66.6 MHz (4x-capable)"

But when I replace the video card with a different one:
ATI Rage 128 Pro (AGP 2x/4x), the machine does not even
try to boot.

Is it possible that the ATI card may be incompatible
with the dual-CPU motherboard?

 

[Vanguard]

I have a very odd problem with my Dell Workstation (Precision 620).
Everything points to the fact that the video card broke down:
the screen is scrambled, etc. The AGP bus on this machine is
"AGP Pro: 66.6 MHz (4x-capable)"

But when I replace the video card with a different one:
ATI Rage 128 Pro (AGP 2x/4x), the machine does not even
try to boot.

Is it possible that the ATI card may be incompatible
with the dual-CPU motherboard?

More likely that you did not fully seat the AGP card into the slot. The
AGP slot takes more pressure to push in a card than do the PCI slots.
Could also be the ATI card is defective.