ASRock B650M PG Riptide Software/BIOS Setup Guide - Page 38

Infinity Fabric Frequency and Dividers, Processor ODT impedance

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Page 38 highlights

[RZQ/6 (60)] [RZQ/5 (48)] [RZQ/6 (40)] [RZQ/7 (34)] Dram DQ drive strengths Allows you to select the Dram Pull-up and Pull-Down Driver Impedance for all DQ and DMI IOs. [Auto] Select this item to apply the default setting. Processor ODT impedance Allows you to specify the Processor ODT impedance. [Auto] Select this item to apply the default setting. Processor DQ drive strengths Allows you to specify the Processor DQ drive strengths. [Auto] Select this item to apply the default setting. Processor CA drive strengths Allows you to specify the Processor CA drive strengths. [Auto] Select this item to apply the default setting. Infinity Fabric Frequency and Dividers AMD Overclocking Setup Set Infinity Fabric frequency (FCLK). [Auto] FCLK = MCLK. [Manual] FCLK must be less than or equal to MCLK for the best performance in most cases. Latency penalties are incurred if FCLK and MCLK are mismatched, but sufficiently high MCLK can negate or overcome this penalty. UCLK DIV1 MODE Allows you to set UCLK DIV mode. VDDG CCD Voltage VDDG CCD represents voltage for the data portion of the Infinity Fabric. It is derived from the CPU SoC/Uncore Voltage (VDD_SOC). VDDG can approach but not exceed VDD_SOC. VDDG IOD Voltage VDDG IOD represents voltage for the data portion of the Infinity Fabric. It is derived from the CPU SoC/Uncore Voltage (VDD_SOC). VDDG can approach but not exceed VDD_ SOC. 34

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34
[RZQ/6 (60)] [RZQ/5 (48)] [RZQ/6 (40)] [RZQ/7 (34)]
Dram DQ drive strengths
Allows you to select the Dram Pull-up and Pull-Down Driver Impedance for all DQ and
DMI IOs.
[Auto]
Select this item to apply the default setting.
Processor ODT impedance
Allows you to specify the Processor ODT impedance.
[Auto]
Select this item to apply the default setting.
Processor DQ drive strengths
Allows you to specify the Processor DQ drive strengths.
[Auto]
Select this item to apply the default setting.
Processor CA drive strengths
Allows you to specify the Processor CA drive strengths.
[Auto]
Select this item to apply the default setting.
Infinity Fabric Frequency and Dividers
AMD Overclocking Setup Set Infinity Fabric frequency (FCLK).
[Auto] FCLK = MCLK.
[Manual] FCLK must be less than or equal to MCLK for the best performance in most cases.
Latency penalties are incurred if FCLK and MCLK are mismatched, but sufficiently high
MCLK can negate or overcome this penalty.
UCLK DIV1 MODE
Allows you to
set UCLK DIV mode.
VDDG CCD Voltage
VDDG CCD represents voltage for the data portion of the Infinity Fabric. It is derived
from the CPU SoC/Uncore Voltage (VDD_SOC). VDDG can approach but not exceed
VDD_SOC.
VDDG IOD Voltage
VDDG IOD represents voltage for the data portion of the Infinity Fabric. It is derived from
the CPU SoC/Uncore Voltage (VDD_SOC). VDDG can approach but not exceed VDD_
SOC.