Hello,
Some examples (for Matisse/Rome/CastlePeak)
1. Enable Manual Overclock
Change command to 0x5A and hit Apply. Status should say "OK" and the CPU should be forced to base frequency.
2. Disable Manual Overclock
Change command to 0x5B and hit Apply. Status should say "OK" and the CPU should be back to default.
3. Set Overclock Frequency for all cores
Manual OC should be enabled first (step 1). Change command to 0x5C and Argument 0 to 4000 (or your frequency of choice). Hit Apply. Status should be OK and a dialog with the response should be the frequency in HEX.