I just installed them on the SATA 6GB ports on my Maximus V Gene Z77 and am only getting the normal 400-500MB/s r/w speeds. What do I need to do to get them to operate at proper Raid 0 speeds of 800+? Thanks.

Silverstone Fortress FT03BASUS Maximus V Gene Z77Intel i7 2600K @ 4.2 GHzCorsair Hydro Series H60EVGA GTX 680 2GBG. Skill Ripjaws X Series 4x4GB (16GB) 1600MHz DDR3Crucial M4 256GB | WD Black 2TBx2Corsair AX850 Power Supply

Just finished my new build runing an i7 2600K and I am having an issue with my USB 2.0 ports. Any mouse I plug into it causes the mouse to constantly crash every few seconds so it'll freeze up, DPI lights turn off, then it connects back and lights tu...