Have you tried unparking your cores? It didn't help me but it may help you.
Contacted MSI support, all I had to do was cycle my slow mode switch. The tech support said the one fault on all boards with an integrated slow mode switch is that they eventually fail, and the motherboard runs in slow mode eternally, until it is fixed. I would check to see if: Running the computer in slow mode, then switching back to normal fixes it, and if not, then try reinstalling windows. If you still have the problem then RMA your board, because the slow mode switch is busted.