33 PCM-9563 User ManualChapter 3 BIOS Settings3.1.3.4.7Miscellaneous Configuration High Precision TimerEnable or Disable the High Precision Timer. Restore AC Power LossSpecify what state to go to when power is re-applied after a power failure (G3state). BIOS LockEnable/Disable the BIOS Lock Enable feature. RTC LockEnable or disable bytes 38h-3Fh in the upper and lower 128-byte bank of RTCRAM lockdown. Flash Protection Range RegistersEnable/Disable the SC BIOS Lock Enable feature. TCO SMI LockEnable TCO and Lock Down TCO.