PC:
Gigabyte GA-P55-UD5
i5 760
Kit dual Corsair 8GB (2x4GB) 1600
500W
Today my pc restarted without BSOD and when come back only 4GB of ram recognized of 8GB, i tried to restore bios defaults, rewrite the bios, memtest the RAM on slot 1 and then swap and no error. I have attached picture of error in BIOS.