Comment 37 for bug 379873

Just want to chime in here. I have this problem as well. I have had it on several motherboards, several CPUs, and every version of Ubuntu and Debian I have had. I am currently on Lubuntu 16.04 with kernel 4.4.0-78 and this issue persists.

My CPU has a stock speed of 3166MHz on a 1333MHz bus. If I set my bus to 1600MHz, which runs the CPU at 3800MHz, everything reports CPU speed correctly. However, if I run my bus speed anywhere in between 1333MHz and 1600MHz, the CPU speed is *not* correctly reported.