My motherboard goes to x8 mode if i put two graphics cards that run at x16. if i put one gpu that runs at x16 and one ssd that runs at x4 will it slows down my performance? I do not have any x4 slot except a x16 slot that downthrottles with x16 sli/crossfire. I will get the ssd for the 9 hundred and something transfer rate! But if it slows down gpu performance i will not, so will it slow down the gpu and ssd performance.