Chapter 4: AMI BIOS
4-15
AHCI Mode
The following items are displayed when the AHCI Mode is selected.
Aggressive Link Power Management
When Enabled, the SATA AHCI controller manages the power usage of
the SATA link. The controller will put the link in a low power mode during
extended periods of I/O inactivity, and will return the link to an active state
when I/O activity resumes. The options are
Enabled
and Disabled.
Port 0~5 Hot Plug
Select Enabled to enable hot-plug support for a particular port, which will
allow the user to change a hardware component or device without shutting
down the system. The options are
Enabled
and Disabled.
Staggered Spin Up
Select Enabled to enable Staggered Spin-up support to prevent excessive
power consumption caused by multiple HDDs spinning-up simultaneously.
The options are Enabled and
Disabled
.
RAID Mode
The following items are displayed when RAID Mode is selected:
Port 0~5 Hot Plug
Select Enabled to enable hot-plug support for the particular port. The options
are
Enabled
and Disabled.
PCIe/PCI/PnP Configuration
Storage Add-on Card OpROM Policy
Use this feature to select the Option ROM to boot the system when there are
multiple Option ROMs available in the system. The options are
Legacy ROM
and
EFI Compatible ROM.
PCI Latency Timer
Use this feature to set the latency Timer of each PCI device installed on a PCI bus.
Select 64 to set the PCI latency to 64 PCI clock cycles. The options are 32,
64
, 96,
128, 160, 192, 224 and 248.
Above 4G Decoding (Available if the system supports 64-bit PCI decoding)
Select Enabled to decode a PCI device that supports 64-bit in the space above 4G
Address. The options are Enabled and
Disabled
.
