Hey, I have MSI GT70 with GTX 675MX and there is a problem with its core clock. My problem is kind of similar to one in this thread http://forum.techinferno.com/msi/3792-675mx-clock-stuck-stock-msi-afterburner-enabled.html is but there is more stuff that's unexplainable. I have stock 10U BIOS, vBIOS is also stock http://gpuz.techpowerup.com/14/06/25/bkw.png As most of you know MSI GTX 675MX standart core clock is 666 Mhz. The problem is that pc boots with 675MX clock as 653 for no apparent reason or explanation. I now have 2 OSes in my pc, and while with my old OS in old HDD the chance to boot with 666 was about 20%, with my new OS in new SSD that chance is absoliutely gone, and it never boots into 666. If it boots with core clock as 653, there is no way to overclock it. MSI afterburner doesn't work, Nvidia Inspector doesn't work, targeting different pstates doesn't work above 653, while down-clocking works as it should. I can turn my pc with new OS, see 675MX clock as 653, restart with old OS, core clock magically is 666, overclocking works to vBIOS limited +135 without problems, then I restart pc to new OS and its back to 653 which doesn't let me OC VGA in any way I tried. I had most drivers from OEM 306 to 340 but none of them had any effect on this behavior. I wonder what are the chances that modified vBIOS would fix this problem, and/or is there anything else that might change these anomalies.