Dell OptiPlex 990 (Early 2011) - Manual (Page 14)

This setting is used to set time out value as to define the Intel ME idle timeout in M3 state. The value should be entered in
minutes. The value indicates the amount of time that the Intel ME is allowed remain idle in M3 before transitioning to the M-
off state.
NOTE: If the Intel ME is in M0, it will NOT transition to M-off.
Previous Menu
Under the Intel ME Platform Configuration menu select Previous Menu and press .
The Intel ME Platform Configuration page appears.
Previous Menu
Under the Intel ME Platform Configuration menu select Previous Menu and press .
The Main Menu appears.
* Information on this page provided by Intel .