Dram Configuration; Dram Timing Configuration; Bclk Frequency; Dram Frequency - ASROCK Z270M-STX MXM User Manual

Z270M-STX MXM / B250M-STX MXM

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 Reference Clock
Select Auto for optimized settings.

DRAM Frequency

If [Auto] is selected, the motherboard will detect the memory module(s) inserted
and assign the appropriate frequency automatically.
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
command and opening the next row.
RAS# Active Time (tRAS)
The number of clock cycles required between a bank active command and issuing the
precharge command.
Command Rate (CR)
The delay between when a memory chip is selected and when the first active command can
be issued.
51