Chapter 4: BIOS
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Write Data Early Enable
Use this feature to enable or disable Write Early Data. The options are Disabled and
Enabled.
Select Refresh Rate
Use this feature to select the memory refresh rate. The options are 1x/2x and 1x/2x/4x.
CKE Power Down
Clock enable (CKE) Power Down controls the low power down for the memory. The options
are Disabled, Active Power Down, and Precharge Power Down.
Memory Thermal Throttling
Memory thermal throttling is a power management feature that monitors read and write
activities to control power consumption. The options are Auto and Disabled.
*If the feature above is set to Auto, the next two features are available for conguration:
CLTT Mode
Use this feature to select the Closed Loop Thermal Throttling mode. The options are Normal
and Passthru.
MEMTRIP
Use this feature to enable or disable memtrip. The options are Disabled and Enabled.
Scrambler
This feature scrambles data in the memory and makes it inaccessible. The options are
Disabled and Enabled.
Slow Power Down Exit
Use this feature to enable or disable the slow exit after the precharge power down. The
options are Disable dand Enabled.
South Bridge Conguration
The following South Bridge information will display:
• USB Module Version
• USB Controllers
• USB Devices
Legacy USB Support
Select Enabled to support onboard legacy USB devices. Select Auto to disable legacy support
if there are no legacy USB devices present. Select Disable to have all USB devices available
for EFI applications only. The options are Enabled, Disabled, and Auto.
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