C1E and C3/C6/C7 - enable - very bad speed (4K Read)C1E enable or C3/C6/c7 - enable - middle speed (4K Read)When i disble it - very good (or normal) speed in 4K ReadI have Gigabyte P55A-UD6
I have the same problem,Solution for me is: C1E;C3/C6/C7 parametre in my BIOS. They have to be disable, Parametre CPU EIST can be enable.(Sorry for my bad english)