Looks like I was mistaken about the frequency range of my CPU. I double checked it at: https://www.notebookcheck.net/HP-Spe....289806.0.html and found that it's CPU is rated between 3100 and 4100 MHz. So the frequencies in /proc/cpuinfo from the recovery mode are correct and only change to the wrong values in the 800MHz range after a normal reboot.
Looks like I was mistaken about the frequency range of my CPU. I double checked it at: https:/ /www.notebookch eck.net/ HP-Spe. ...289806. 0.html and found that it's CPU is rated between 3100 and 4100 MHz. So the frequencies in /proc/cpuinfo from the recovery mode are correct and only change to the wrong values in the 800MHz range after a normal reboot.