Intel vPro Processor Technology Setup and Configuration for the HP Z1, Z210, Z420, Z620 and Z820 Workstations

Appendix C: Wake-On-ME Explained

Wake-On-ME, also known as ME WoL, is a feature that allows the ME to go into a

low power state when it is not used.

There are three conditions that must be met for Wake-On-ME to function.

• The system is in a sleep state: S3, S4, or S5

• ME On in Host Sleep State setting is set to allow ME WoL.

• If the system is running (S5), then the ME is also running.

The ME On in Host Sleep State setting must be set to ME WoL so the ME can be

put to sleep and awaken if needed when the system is in a sleep state. The ME

counts down from the amount of time set in Idle Timeout before it will go to sleep.

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652388-001, April 2012