Table 51. System Setup options—Virtualization menu(continued)
Virtualization Support
Internal Port DMA Compatibility Mode When enabled, BIOS will notify the operating system if the internal ports are not
DMA capable.
NOTE: This option is not available when the virtualization setting for IOMMU
is disabled (VT-d/AMD Vi).
By default, the Internal Port DMA Compatibility Mode option is disabled.
NOTE: This option is provided only for compatibility purposes, since some
older hardware is not DMA capable.
NOTE: To view this option, enable Advanced Setup mode as described in
View Advanced Setup options.
Table 52. System Setup options—Performance menu
Performance
Intel SpeedStep
Enable Intel SpeedStep Technology Enables the computer to dynamically adjust processor voltage and core
frequency, decreasing average power consumption and heat production.
By default, the Enable Intel SpeedStep Technology option is enabled.
NOTE: To view this option, enable Service options as described in View
Service options.
Table 53. System Setup options—System Logs menu
System Logs
BIOS Event Log
Clear BIOS Event Log Select the option to keep or clear BIOS events logs.
By default, the Keep Log option is selected.
NOTE: To view this option, enable Advanced Setup mode as described in
View Advanced Setup options.
Thermal Event Log
Clear Thermal Event Log Select the option to keep or clear thermal events logs.
By default, the Keep Log option is selected.
NOTE: To view this option, enable Advanced Setup mode as described in
View Advanced Setup options.
Power Event Log
Clear Power Event Log Select the option to keep or clear power events logs.
By default, the Keep Log option is selected.
NOTE: To view this option, enable Advanced Setup mode as described in
View Advanced Setup options.
BIOS Setup 149
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