User manual
Page 27
...system performance. ■ Normally the OC function is disabled. At this moment the debug led will not use any software. The debug led code "0.1" means the CPU clock is enabled by 1 MHz per step, and the debug led code will turn on. 2 CAUTION OC Switch Button: OC_SW1/2/3 You could press the three buttons... to adjust the CPU clock directly, without to enter BIOS setup or any system resource, so there is no effect to enter the OC mode and the led lights will increase 0.1...
...system performance. ■ Normally the OC function is disabled. At this moment the debug led will not use any software. The debug led code "0.1" means the CPU clock is enabled by 1 MHz per step, and the debug led code will turn on. 2 CAUTION OC Switch Button: OC_SW1/2/3 You could press the three buttons... to adjust the CPU clock directly, without to enter BIOS setup or any system resource, so there is no effect to enter the OC mode and the led lights will increase 0.1...