I've got Gail DDR3 2 * 2 GB 1600 MHz latency CL11. Motherboard asus m4a88tdv-evo. That mobo supports 1333 MHz RAM and up to 2000 Mhz O.C. At least once a day my computer freezes with the message memory_management error (blue screen). It's happening on windows 8.1. I tested the memory in memtest86+ (3 pass) and in the windows memory test, without errors. All in bios was at default (auto settings). Memory was working at 1600MHz with voltage 1.5V. After that I change frequency to 1333, but still have same problems. Freezes one to two times a day. Any help and advice would be welcome!