Intel MEBx Settings

Intel® MEBx Settings
Version 2 – November 2008
Refer to the following charts for descriptions and options for the MEBx settings.
Intel® ME Configuration
MEBx Menu Setting Options Description / Purpose
Intel® ME
Configuration
Intel® ME State
Control
• Disabled
• Enabled
The Intel Management Engine State Control (enable/disable)
option provides a detach capability during field malfunction
debug. You can use this option to disable the Intel
Management Engine in order to isolate the Intel Management
Engine subsystem from the main platform until the debugging
process is complete.
Intel Management Engine is not actually disabled via the
Disable option. It is paused at a very early stage of the Intel
Management Engine boot process so that the system has no
traffic originating from the Intel Management Engine on any
bus. This ensures that you can debug a system problem
without interference from the Intel Management Engine.
Intel® ME
Configuration
Intel® ME Firmware
Local Update
Qualifier
• Always Open
• Never Open
• Restricted
Always Open - Intel® Management Engine FW local update
channel is always enabled. Boot cycle will not change
“enabled” to “disabled”. Intel Management Engine FW Local
Update option can be ignored.
Never - Intel Management Engine FW local update is
controlled by Intel ME FW Local Update Option
(Enabled/Disabled). Boot cycle will change “enabled” to
“disabled”.
Restricted - Intel Management Engine FW local update
channel is always enabled only if Intel® AMT is in un-provision
state. Boot cycle will not change “enabled” to “disabled”.
Intel® ME
Configuration >
Intel® ME Feature
Control
Manageability
Feature Selection
• None
• Intel® AMT
• Intel® Standard Manageability
• ASF
The options available for this setting depend on your system
configuration.
Intel® ME
Configuration >
Intel® ME Feature
Control
Intel® Quiet System
Technology
• Disabled
• Enabled
Enables or disables Intel® Quiet System Technology (IQST).
IQST is intelligent system fan speed control algorithms that use
operating temperature ranges more efficiently to reduce
perceived system noise by minimizing fan speed changes.
Intel® ME
Configuration >
Intel® ME Power
Control
Intel® ME ON in
Host Sleep States
• Desktop: ON in S0
• Desktop: On in S0, S3
• Desktop: ON in S0, S3, S4-5
• Desktop: ON in S0, ME Wake in S3
• Desktop: ON in S0, ME Wake in S3, S4-5
• Desktop: ON in S0, S3, S4-5, OFF After
Power Loss
• Desktop: ON in S0, ME Wake in S3, S4-5,
OFF After Power Loss
The power package selected will determine when the Intel®
Management Engine is turned ON. The default power package
turns off the Intel Management Engine in all Sx (S3/S4/S5)
states when the system is on AC power.