IRQ problem on ATI Radeon 7000

Hello

I'm having problems with an ATI Radeon 7000 card and found that the
BIOS is not assigning an IRQ. The option Assign IRQ to VGA is enabled,
also tried this card in other PCs with the same problem. Using a PCI
scanning program I noticed its PCI configuration register, offset 3D is
where the card informs what physical interrupt pins is connected reads
00, which means it does not use any interrupt, however interrupt pin A
on AGP slot is connected to the chip, obviously that configuration data
is wrong.

So my question is, where is this data stored? I have a dump of the ROM
on the card but am not sure if that data is there and how to look for
it.

Thank you.