Gigabyte Z490 UD AC User Manual page 28

& Rank Interleaving
Enables or disables memory rank interleaving. Enabled allows the system to simultaneously access different
ranks of the memory to increase memory performance and stability. Auto lets the BIOS automatically
configure this setting. (Default: Auto)
& Memory Boot Mode
Provides memory detection and training methods.
Auto Lets the BIOS automatically configure this setting. (Default)
T he BIOS automatically performs memory training. Please note that if the system
Normal
becomes unstable or unbootable, try to clear the CMOS values and reset the board
to default values. (Refer to the introductions of the battery/clear CMOS jumper in
Chapter 1 for how to clear the CMOS values.)
Fast S kip memory detection and training in some specific criteria for faster memory
boot.
Disable Fast Boot Detect and train memory at every single boot.
& Realtime Memory Timing
Allows you to fine-tune memory timings after the BIOS stage. (Default: Auto)
& Memory Enhancement Settings
Provides several memory performance enhancement settings: Auto, Relax OC, Enhanced Stability, Normal,
Enhanced Performance, High Frequency, High Density, and DDR-4500+. (Default: Auto)
& Memory Channel Detection Message
Allows you to determine whether to show an alert message when the memory is not installed in the optimal
memory channel. (Default: Enabled)
ƒ SPD Info
Displays information on the installed memory.
ƒ Memory Channels Timing
d Channels Standard Timing Control, Channels Advanced Timing Control, Channel Misc
Timing Control
These sections provide memory timing settings. Note: Your system may become unstable or fail to boot
after you make changes on the memory timings. If this occurs, please reset the board to default values by
loading optimized defaults or clearing the CMOS values.
& Vcore Voltage Mode/SVID offset/BCLK Adaptive Voltage/CPU Graphics Voltage
(VAXG)/DRAM Voltage (CH A/B)/CPU VCCIO/CPU VCCIO2/CPU System Agent Voltage/
VCC Substained/VCCPLL/VCCPLL OC/VCCVTT/PCH Core
These items allow you to adjust the CPU Vcore and memory voltages.
ƒ Advanced Voltage Settings
This submenu allows you to configure Load-Line Calibration level, over-voltage protection level, and over-
current protection level.
- 28 -