i'm well aware of the pci-e power limitation, i've read a lot about it in the forum, but, since the power connector on the motherboard is the regular ATX connector i'd said "screw the case, i'll make one later" and decided to use a ATX power supply (650w) and it worked really well with the mobo as it is, the problems start when I tried to add a GPU, and NVIDIA GTX 660 on the PCI-e x16 port, the mobo doesn't detect it at all (it does starts using the iGPU but neither windows nor the bios detect the card in the pci-e)
later, for science, i tried the next port (wired PCI-e x4 said the manual) and the mobo detected the GPU and worked really well for days with any game i tried to run.
at first I thought it was a bios limitation, like "you can only put this, this and that gpu models on this PC" as i tried a low profile nvidia GT 8400, nv gt 6200, ati x300 and ati x1500, and non of them worked on the PCI-e x16, but if i connected any of them on the PCI-e x4 they all work flawlessly
this was the same with the 3 optiplex 790 sff i'm testing, so, either that or is a weird "the 3 have faulty PCI-e x16 ports" or i'm doing something wrong, any ideas??
later, for science, i tried the next port (wired PCI-e x4 said the manual) and the mobo detected the GPU and worked really well for days with any game i tried to run.
at first I thought it was a bios limitation, like "you can only put this, this and that gpu models on this PC" as i tried a low profile nvidia GT 8400, nv gt 6200, ati x300 and ati x1500, and non of them worked on the PCI-e x16, but if i connected any of them on the PCI-e x4 they all work flawlessly
this was the same with the 3 optiplex 790 sff i'm testing, so, either that or is a weird "the 3 have faulty PCI-e x16 ports" or i'm doing something wrong, any ideas??