Hi all,

I've got a Dell Optiplex desktop (DT) 755 at home which I'm in the process of converting into a PFSense router and firewall. I've got gigabit fibre coming in, and I'm noticing throttling at around 700mbit speeds, which I believe is down to the PCI bus.

Question is - can I use the PCI-E x16 in PCI-E x4 mode for a network adapter instead of a video card? Would an Intel EXPI9402PTG2L20 Intel Dual Port Gigabit PCI-e Network Card SFF fit the bill and what can I expect in terms of speed? Even PCI-E x1 would suit my purpose.

Any experience doing this would be helpful, I'm on latest bios version A21