Biostar H77MU3 Bios Manual - Page 8

ACPI Settings

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H77MU3 UEFI BIOS Manual ASPM This item sets the ASPM (Active State Power Management Settings) Level: Force L0 - Force all links to LO State; Auto - BIOS auto configures; Disabled - Disables ASPM. Options: Disabled (Default) / Auto / Force L0s Extend Synch If enabled allows generation of extended synchronization patterns. Options: Disabled (Default) / Enabled Link Training Retry Defines number of retry attempts software will take to retrain the link if previous training attempt was unsuccessful. Options: 5 (Default) / Disabled / 2 / 3 Link Training Timeout(uS) Defines number of microseconds software will wait before polling 'Link Training' bit in link status register. Value range from 10 to 1000 uS. Options: 100 (Default) Unpopulated Links In order to save power, software will disable unpopulated PCI Express links, if this option set to 'Disable Link'. Options: Keep Link ON (Default) / Disable Link ACPI Settings 7

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H77MU3 UEFI BIOS Manual
7
ASPM
This item sets the ASPM (Active State Power Management Settings) Level: Force
L0 – Force all links to LO State; Auto – BIOS auto configures; Disabled – Disables
ASPM.
Options:
Disabled (Default) / Auto / Force L0s
Extend Synch
If enabled allows generation of extended synchronization patterns.
Options:
Disabled (Default) / Enabled
Link Training Retry
Defines number of retry attempts software will take to retrain the link if previous
training attempt was unsuccessful.
Options: 5 (Default) / Disabled / 2 / 3
Link Training Timeout(uS)
Defines number of microseconds software will wait before polling ‘Link Training’
bit in link status register. Value range from 10 to 1000 uS.
Options: 100 (Default)
Unpopulated Links
In order to save power, software will disable unpopulated PCI Express links, if this
option set to ‘Disable Link’.
Options: Keep Link ON (Default) / Disable Link
ACPI Settings