Hi i just bought the Asus Prime Z370-P motherboard + 2 x 8GB Adata Spectrix D41 3200mhz + I7 8700K, i have one problem, because my ram doesn't show full speed by default, so that i went to bios and just turn on the XMP profile, and i get the ram running full speed, but i realized the system is unstable the screen just turn off itself, when running benchmark tools, and won't turn on again.

May i know what is the best and stable setting to turn on the XMP profile, turn on XMP profile seem meaning to overclock the CPU and memory.

Question 1
When turn on XMP profile 3200mhz, "CPU Ratio" value will change from "Auto" to "Per Core", and also auto assigned the Ram Timing and CL value.
RAM voltage set to "1.35v"

*if i leave the setting above unchanged, my system will auto black screen after 1 or 2 hour when i run some intensive application (Cinebench or Prime95) . so what is the best and stable setting to set the ram speed at 3200mhz? currently i tried reset bios to default and enable the XMP, then i just change the CPU Ratio from "per Core" to "Auto". Not sure correct or not. any idea?

Question 2
I tried the Auto Ez Tuning, follow by the wizard, i can easily overclock cpu to 4.9Ghz, but ram speed OC at 27++mhz Cinebench R15 score 1650. which is good, but i realized the Vcore is running at 1.5v. which i think is out & 3dmark benchmark my temperature is about 65-70c, i am using noctua cooler and my casing is big and with 2 x 120mm noctua fan and 2x 210mm big case fan.

*can i just reduce the vcore, after Auto Ez tuning?

This post has been edited by hotwebs: Oct 3 2018, 03:55 PM

Hi, ya thanks, I have updated my bios, and i found out the root cause already, it is my power supply problem, there was burn smell, while i run stress test prime95, but the PC still able to run that time. so i just change my PSU to "Thermaltake Toughpower RGB 750w", running fine now.