Okey. So I've done my fair share of X38 board and dual graphic card installs but I've never tried to install a graphics card in the second x16 slot only. So my questions are :
1.) Has anyone tried this?
2.) Does it work?
3.) Is there any good reason why it shouldn't work?
I'm not really sure I would want to run it that way but it might improve cooling of a single graphics card because it's right where a front intake fan blows in most midtowers with a top mounted PSU. I was just curious if it works. I have a P35 board so I can't test myself so I asked if anyone here tried it.
I dont see why everyone is bagging this out. I almost had to put my main GPU in the second slot not long ago to make sure i got all my expansion cards in, although i found another way. I own an Asus P5B-Deluxe with a P965 chipset and it worked ok for me, but with a large exception
Checking out my POST there, i can tell you that my 7900GT worked perfectly well by itself in the PCI-e 1x slot not only did the machine post first go with it but it also ran games OK (although there was a noticable performance loss, for obvious reasons)
You own an ATI chipset from what I see in your configuration (I'm more interested in P35/X38/X48) but it's good to know that other chipsets offer this feature.
Good to know chipsets are not picky about this. I'm not considering installing any graphics cards in PCI-E 1x slots just yet. EDIT : A brave mod indeed. I would have really considered the ZALMAN FB123 before putting the soldering iron to my board. The second thought would be to sell 8800GT and buy a 8800GTS.