Hello peeps, As title suggests, trying to install some GPUs to the eponymous Asus motherboard, but not having much luck. I'm trying to put two 980 Tis into slots 1 and 3 as the motherboard suggests, but nothing shows up in 3. Nothing else is attached to the motherboard, slots 1 and 4 work, as do 2 and 4, but 1 and 3 refuse. Bizarrely, slot 3 with a single card also works. Oddly, I did have a little poke at it when this issue happened before - think it might have been with two 670s - and I managed to get it to recognise them both. When I replaced them with the 980s, no dice. The internet is awash with people saying similar things, but they all seem to have added other cards etc. and apparently activated the NF200 switching chip, which appears to be the root cause. I have nothing else attached though. So I suppose the questions are: - what's causing this and what's the solution? - failing a solution, does it matter really if I use x8 via Intel chipset on slot 1 coupled with x16 (supposedly) via NF200 on slot 4? - or, is there any benefit to using x16/x16 via NF200 on slots 2 and 4? This is driving me potty and as usual, the manual/Asus' website are underflowing with information, as far as I can make out. Grateful for any (constructive) input!