User's Manual

ASUS PRIME X399-A
3-13
Chapter 3
FID
This item allows you to set the core frequency multiplier. Use the <+> or <-> to adjust
the value.
DID
This item allows you to set the core frequency divisor. Use the <+> or <-> to adjust the
value.
Memory Frequency
This item allows you to set the memory operating frequency. The congurable options vary
with the BCLK (base clock) frequency setting. Select the auto mode to apply the optimized
setting. Conguration options: [Auto] [DDR4-1333MHz] - [DDR4-4000MHz]
3.6 Advanced menu
The Advanced menu items allow you to change the settings for the CPU and other system
devices.
Be cautious when changing the settings of the Advanced menu items. Incorrect eld values
can cause the system to malfunction.
3.6.1 Trusted Computing
Security Device Support [Enable]
Allows you to enable or disable BIOS support for security devices. Conguration options:
[Disable] [Enable]
3.6.2 AMD fTPM Conguration
The items in this menu allow you to congure the TPM settings.
3.6.3 SATA Conguration
While entering Setup, the BIOS automatically detects the presence of SATA devices. The
SATA Port items show Not Present if no SATA device is installed to the corresponding SATA
port.
SATA Port Enable
This item allows you to enable or disable the SATA Device. Conguration options: [Disabled]
[Enabled]
SATA Mode
This item allows you to set the SATA conguration.
[AHCI] Set to [AHCI] when you want the SATA hard disk drives to use the
AHCI (Advanced Host Controller Interface). The AHCI allows the
onboard storage driver to enable advanced Serial ATA features that
increases storage performance on random workloads by allowing
the drive to internally optimize the order of commands.
[RAID] Set to [RAID] when you want to create a RAID conguration from
the SATA hard disk drives.