You have 2 x16 slots and 3 x1 slots. You will need x1 risers for the x1 slots. It should hold 5.
Thanks for your reply and help!
So, those connectors labeled
PCIEX1_1,
PCIEX1_2 and
PCIEX1_3 are meant to be connected to a GPU, right?
If I had 5 of these:
....
Together with a power supply unit, cpu, ram, hdd. Do you think this can work? Or, perhaps, some software problems may arise in using 5 gpu's?
Sorry for sounding like an idiot, but I've never done this before and the most manuals on mining are all like: "oh yeah, just connect some cables, download some shit and press some buttons dude..."
Check out this video on youtube of some guy building a litecoin rig with similar motherboard... if you haven't assembled a PC before then you could pick up a few tips.