ASROCK Z390M-ITX/ac User Manual page 55

GT Current Limit
Configure the current limit of the GT slice. A lower limit can protect the CPU and
save power, while a higher limit may improve performance.
GT Frequency
Configure the frequency of the integrated GPU.
DRAM Configuration
DRAM Tweaker
Fine tune the DRAM settings by leaving marks in checkboxes. Click OK to confirm and
apply your new settings.
DRAM Timing Configuration
Load XMP Setting
Load XMP settings to overclock the memory and perform beyond standard specifications.
BCLK Frequency
The CPU speed is determined by the CPU Ratio multiplied with the BCLK. Increasing the
BCLK will increase the internal CPU clock speed but also affect the clock speed of other
components.
DRAM Frequency
If [Auto] is selected, the motherboard will detect the memory module(s) inserted
and assign the appropriate frequency automatically.
DRAM Clock
Choose a frequency to override to clock delay for memory training. DRAM Clock
controls memory training only if ASRock Timing Optimization is disabled.
Primary Timing
CAS# Latency (tCL)
The time between sending a column address to the memory and the beginning of the data
in response.
RAS# to CAS# Delay and Row Precharge (tRCDtRP)
RAS# to CAS# Delay : The number of clock cycles required between the opening of a row
of memory and accessing columns within it.
Row Precharge: The number of clock cycles required between the issuing of the precharge
48