I read some other posts that had been solved on this topic and tried to apply all the advice to my situation with no success. I have an AMD FX-6100 that I have OC'd to 4.6ghz. I disabled C1E in BIOS and still have issues with CPU-Z showing a fluctuation in core speed and multiplier. When not in full load it will jump from 1400mhz x 7 to 4612mhz x 22.5. So I run prime95 to get a full load and it jumps from 3074mhz x 15 to 4612mhz x 22.5. Is this normal or troublesome? Also, I've noticed in prime95 some cores fall behind a test or two, is this a cause for concern as well?