I have a Dell Vostro 410 (Foxconn DG33A01 motherboard) which has three PCIe slots - one 16x and two 1x. I'm trying to add a second 16x GPU (Radeon 5670) to the 1x slot.
I've Dremeled off the end of the 1x so that a 16x can fit. The card fits perfectly but the OS doesn't recognize the card. I've tried shorting pins A1 to B17 as outline in http://blog.zorinaq.com/?e=42
An odd thing is that whenever I have a video card in the 1x slot, the integrated LAN doesn't work. I've also tried disabling the integrated LAN.
So basically I'm stuck. I tried an old Radeon 2400 in the 1x (with and without the A1-B17 short) and it doesn't recognize, so it's the GPU card. For some reason the DG33A01 motherboard refuses to recognize a 16x card in the 1x slot. Unfortunately there doesn't seem to be a DG33A01 motherboard manual anywhere. The Dell BIOS is pretty lame and doesn't expose any PCIe setting.
Thanks for any help. I've love to get some extra Mhash going with my spare card.