Administrator Guide

15 Configuring Remote Wake-Up Using Dell Client Command Suite
In some cases, the OS (or software in the OS) also sets an RTC timer:
 If graceful shutdown happens, the OS-configured RTC wake time has precedent over the BIOS ‘Auto
Power On’ time as the OS RTC timer value gets retained and wakes up the system and the BIOS
Auto Power On time should be ignored.
 During ungraceful shutdown events such as AC removal on desktops, or forced shutdown due to
power button override, and so on, the BIOS Auto Power On timer can take precedent, as it is
expected that the OS timer value would be lost during the reset.