Hey,
I have been having issues with the R4E too and I had the same issue you had yet I had it with the 0901 Bios.
What I did was Reset Cmos and then reset the entire thing up. What I noticed when it happened was I disabled all the other drives in the list and only allowed for first boot option. I dont know if that was the cause but I was able to boot my raid OCZ Vertex 3 Max IOPS once I reset CMOS and did not disable all the other drives. I just left them as they were and put my raid0 set up as my first boot device. Also, I noticed when they were not booting that even though I would set raid0 and then restart. then set my array as the first boot, Upon restart it was resetting Raid back to AHCI for some reason. So it required another restart to make sure everything was what I set it at to get it to boot. And then it did in fact boot.
I tried to set the Normal OC Profile in the Bios and my system would not boot at all. I even purchased New RipjawZ 2133mhz to make sure it was not ram related. None of the profiles work for me. I do have 3 cards so I dont know if that is the reason or not.
Also, I have owned the UD7 and though I was able to hit 5.5ghz the board had major issues. Like as soon as you reach its maximum overclock it wigs out and starts an A6 error loop and does not come out of it. You dont want a UD7 until they get the Bios updated. Right now None of them change anything. They all did the same for me. AND not to mention they come with one of the Dual Bios already non functional on many of the boards. A buddy of mine has purchased 2 of them, I have owned 2 of them and one Assassin2 board and ALL of them came with one of the dual Bios not working. Im still going to get a UD7 again once they update the Bios and get the bugs out.
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