Reference Guide

Table 19. System Profile Settings details
Option Description
System Profile
Sets the system profile. If you set the System Profile option to a mode other than Custom,
the BIOS automatically sets the rest of the options. You can only change the rest of the
options if the mode is set to Custom. This option is set to Performance by default. Other
options include Performance Per Watt (OS) and Custom.
NOTE: All the parameters on the system profile setting screen are available only when
the System Profile option is set to Custom.
CPU Power Management Sets the CPU power management. This option is set to OS DBPM by default. Other option
includes Maximum Performance.
Memory Frequency Sets the speed of the system memory. You can select Maximum Performance or a specific
speed. This option is set to Maximum Performance by default.
Turbo Boost Enables or disables the processor to operate in the turbo boost mode. This option is set to
Enabled by default.
C States Enables or disables the processor to operate in all available power states. C States allow the
processor to enter lower power states when idle. When set to Enabled (OS controlled) or
when set to Autonomous (if hardware controlled is supported), the processor can operate
in all available Power States to save power, but may increase memory latency and frequency
jitter. This option is set to Enabled by default.
Write Data CRC When set to Enabled, DDR4 data bus issues are detected and corrected during 'write'
operations. Two extra cycles are required for CRC bit generation which impacts the
performance. Read-only unless System Profile is set to Custom. This option is set to
Disabled by default.
Memory Patrol Scrub Sets the memory patrol scrub mode. This option is set to Standard by default.
Memory Refresh Rate Sets the memory refresh rate to either 1x or 2x. This option is set to 1x by default.
PCI ASPM L1 Link Power
Management
Enables or disables the PCI ASPM L1 Link Power Management. This option is set to Enabled
by default.
Determinism Slider Set the system determinism by Power Determinism or Performance Determinism. This
option is set to Power Determinism by default.
Efficiency Optimized Mode Efficiency Optimized Mode maximizes Performance-per-Watt by opportunistically reducing
frequency/power. Enables or disables the Efficiency Optimized Mode.
Algorithm Performance
Boost Disable (ApbDis)
Enables or disables the Algorithm Performance Boost Disable (ApbDis). This option is set to
Disabled by default.
XGMI Max Speed This field specifies the processor's maximum XGMI speed.
Dynamic Link Width
Management (DLWM)
Reduces the xGMI link width between sockets from x16 to x8 (default), when no traffic is
detected on the link. This option is set to Unforced by default.
System Security
To view the System Security screen, power on the system, press F2, and click System Setup Main Menu > System BIOS >
System Security.
Table 20. System Security details
Option Description
CPU AES-NI Improves the speed of applications by performing encryption and decryption by using
the Advanced Encryption Standard Instruction Set (AES-NI). This option is set to
Enabled by default.
System Password Sets the system password. This option is set to Enabled by default and is read-only if
the password jumper is not installed in the system.
Pre-operating system management applications 15