**Gigabyte GA-X58A-UD7 OC-Tips-Bios-Discussion Thread**

[Ice009]

No I have just the two GF7800s.
Did you try moving the cards around to different slots?
W7 is supposed to be more tolerant of using multiple video cards.

Alright I moved the card a couple of days ago. I left the ATI card in the primary slot and moved the GTX 260+ card into the 3rd x16 slot and the Nvidia card now works and is detected. The cards are right next to each other now, which I didn't want as I was trying to keep them cooler by having them further away. I wonder if there is an issue with the bottom slot as I want to go Crossfire again at some point.

btw Can anyone tell me the speed of each x16 slot? When I look at GPU-Z the Nvidia card is only running at x8, but I am pretty sure that 3rd slot is x16. The second x16 slot you can't use because it's always blocked if you have a dual slot cooler on your vid card, which 95% of high end cards do these days, so I assume that second slot is x8?

Not yet. I have the 5870 in the first x16 slot, nothing in the second x16 slot and the Nvidia card in the bottom x8 slot.

The thing is I want to get a couple more ATI cards later on and Crossfire so I need the Nvidia card to work in the slot that it is currently in. That's why I didn't want to move it because eventually I want to use it in this slot. I will try it in the other slot though tomorrow when I have time to see if it works.

So it wouldn't be a BIOS setting or anything that needs to be changed? Even if I don't have drivers installed for the card should it still show up in GPU-Z or not? It seems to be running, but not showing up in GPU-Z, MSI Afterburner or any of those programs.

Just wanted to add to my previous post about the BIOS. Could this still be a BIOS issue with the Nvidia card not working in the 4th x16 (x8) slot? I did some googling and someone else had the problem with his Nvidia card not being detected (different brand MB though) when used with an ATI card as the primary video card and a BIOS update on his MB fixed the issue.