Intel S552SC (Dual MotherBoard) - Problems

Hello.



I'm having troubles with S5520SC motherboards. We are working with 5 computers with this motherboard and we have these troubles:



1.- Is not possible to put a PCIe card with firewire ports that works in the PCIe ports except the 16x port. Is this normal ????. We have tried with four different cards (and chipset... Texas Instruments, Via) and different computers. Works in other machines but doesn't works in any S5520SC.(Win XP and Vista 64 bits)



2.- Graphic cards.

--> Works with:

GeForce 7300

GeForce 8400 GS

GeForce 9600



--> Doesn't work with

GeForce 9400

GeForce 9800



We install the drivers but in the Device manager appears the error code 12 that says that the graphics card need more free resources.

Any idea???.



We have tried with different drivers and Operations Systems, XP, VIsta and Linux.



We have tried with the new BIOS and the oldest. Doesn't works. :-(



Our Machines:

12 GB RAM non ECC Kingston.

2 Intel Xeon processors

Different configurations of Hard Disks.