New ASRock Motherboards

[KT819GM]

At the GPU end you have to cut one side of extender to fit GPU. And yes, plugung 1x will be ok. Besides, this wire modification goes better on GPU side socket, because it easier to solder it there. About stability, can't say much, have one system running for two years now without a single glitch, just constant *cat updates and some benchmark + some litecoin mining. Hope to buy two 290x soon.