DELL PE 860 the same IRQ on 2 NICs

Hi,

We have PE860 with 3 NICs onboard:

2 integrated broadcom (5721J), and one intel.

The problem is, that both broadcom NICs uses different IRQ, but intel uses the same IRQ with one of integrated NIC.

We tried to change them in bios, and assign different IRQ to all 3 NICs, but whatever we do, intel NIC shares IRQ with another one.

F.i., If we change IRQ for Intel NIC to 5, Br NIC became the same automatically.

Is it possible, to have different IRQs assigned to all 3 NICs ?

Thanks.