Hello every one, I try the core speed of my cpu won't exceed 0.78 Ghz. I've updated the bios to A25 check that's not the issue. Power options in the windows settings are high performance so that's not the issue either. The core speed is the same when the PC is idle, and when I send it through stress test. My PC specs Intec cor i5 4310u 8Go Ram 256 SSD windows 10 Thank you for helping CPU-Z Idle Under Stress