Asus PRIME Z270-P - DRAM Frequency [Auto]; DRAM Odd Ratio Mode [Enabled]; EPU and Performance Mode; OC Tuner

2.5.4 DRAM Odd Ratio Mode [Enabled]
Allows you to enable or disable the DRAM Odd Ratio Mode, which provides better
granularity. Conguration options: [Disabled] [Enabled]
2.5.5 DRAM Frequency [Auto]
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] [DDR4-800MHz] [DDR4-933MHz] [DDR4-1066MHz]
[DDR4-1200MHz] [DDR4-1333MHz] [DDR4-1466MHz] ~ [DDR4-4133MHz] [DDR4-
4266MHz]
Selecting a very high memory frequency may cause the system to become unstable! If this
happens, revert to the default setting.
2.5.6 OC Tuner [Keep Current Settings]*
This item allows you to automatically overclock the CPU and DRAM frequencies and voltage
for an enhanced system performance. It also accelerates the CPU graphics performance to
the extreme depending on the CPU graphics loading. Conguration options: [Keep Current
Settings] [OC Tuner I] [OC Tuner II]
Ensure that you installed an efcient CPU fan for CPU and graphics loading before
selecting either [OC Tuner I] or [OC Tuner II]. To keep the current overclocking tuner
status, select [Keep Current Settings].
2.5.7 EPU and Performance Mode [Auto]
[Auto] Automatically adjusts the power usage based on the system load.
[Max Power-Saving Mode] Enables all power-saving settings for maximum energy-saving
condition.
[EPU Mode] Lowers the CPU core/cache voltage for the best energy-saving
condition.
[Performance Mode] Automatically overclocks the CPU and DRAM frequencies and
voltages for an enhanced system performance.
2.5.8 CPU SVID Support [Auto]
Disabling SVID Support stops the processor from communicating with the external voltage
regulator. Conguration options: [Auto] [Disabled] [Enabled]
2.5.9 DRAM Timing Control
The subitems in this menu allow you to set the DRAM timing control features. Use the
<+> and <-> keys to adjust the value. To restore the default setting, type [auto] using the
keyboard and press the <Enter> key.
Changing the values in this menu may cause the system to become unstable! If this
happens, revert to the default settings.
2-22 Chapter 2: Getting started