Settings for full DDR4 SPD (ASUS)

Discussion created by jup_kozlowski on Aug 20, 2017

Hi folks,


I´ll found some usefull settings (THX to flusher1 from reddit)  for people, who uses a MB´s from Asus. I´ll test this settings with my friends on my rig and the rig of my friends. A, B350-A, B350 - Plus, X370 and the ROG Crosshair VI Hero, with diffrent DDR4 Boundel (32GB - 64GB / Dual Channel). Dosen´t matter wich RAM we tested, they run with those settings on full SPD.


RAM we tested:


- Corsair Vegeance LPX 3000 (4x8GB / On B350-A)

- Corsair Vegeance LPX 3200 (4x8GB / On B350 Plus)

- G. Skill  Trident Z RGB 3000 (4x8GB / On X370 Pro)

- ADATA XPG Dazzle LED Series (4x16GB / On ROG Crossair VI Hero).


Don´t use D.O.C.P and follow those settings. And be sure to use the latest Bios Version.


! Cave !


Your rig and CPU got 15° +/- more Tempreture on full load, with this settings. Dosen´t matter on air or liquid cooling.


AT Tweaker:

Ai Overclock Tuner [Auto]

Memory Frequency [DDR4- xxxxmhz] (it depends on your RAM SPD)

Custom CPU Core Ratio [Auto]

> CPU Core Ratio [38.25]   (you can keep it auto, when you use a boxed cooler, CPU goes hot with 38,25)

EPU Power Saving Mode [Disabled / enabled / dosen´t matter]

OC Tuner [Keep Current Settings]

Performance Bias [Auto]

VDDCR CPU Voltage [Offset mode]

VDDCR CPU Offset Mode Sign [+]

VDDCR CPU Offset Voltage [0.07500]

VDDCR SOC Voltage [Offset mode]

VDDCR SOC Offset Mode Sign [+]

VDDCR SOC Offset Voltage [0.20000]

DRAM Voltage [1.35000]

1.05V SB Voltage [Auto]

2.5V SB Voltage [Auto]

CPU 1.80V Voltage [Auto]

VTTDDR Voltage [Auto]

VPP_MEM Voltage [Auto]

VDDCR CPU Load Line Calibration [High]

VDDCR SOC Load Line Calibration [Regular]

VDDCR CPU Power Phase Control [Optimized]

VDDCR CPU Switching Frequency [200]

Target TDP [Auto] (If you don´t have this option, just ignore it)



DRAM CAS# Latency [15]

Trcdrd [17]

Trcdwr [17]

DRAM RAS# PRE Time [17]

DRAM RAS# ACT Time [35]

ProcODT [40 Ohms]


I hope this will help some, until you get a final Bios with propers SPD Supoort, without edditing.