1) do all motherboards allow gpus in the x1 slots?
2) If I get x1 -> x16 risers and power via the 6pin atx plugs I should not need a molex model should I. ?
3) I have seen people just using x1 -> x1 risers for a x16 cards with a mention of cutting the socket, is there any benefit to this? Also is there a page which shows which part to cut
1) yes
2) it depends how much gpus are you using, how much power you need to supply thru mothrboard, power goes thru first pins of pci-e slot
3) I am not sure about this
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