DDRVPP Voltage / Dram Termination

[nukemdukem]

Hi All,

Would anyone be able to describe / explain what DDRVPP Voltage and Dram termination do?

I have gigabyte aorus pro wifi x570 with ryzen 3700x and cosair vengeance rgb pro 16gb 3200mhz (2x8gb).

At the moment i have manually set my DDR4 to 3200mhz as XMP profile 1 kept causing BSOD.

To do this i simply changed the memory multiplier from 21.3 to 32 and increased Dram voltage to 1.36v.

It all works fine and stable with timings 16-18-18-18-36

But DDRVPP Voltage and Dram terminaiton are currently auto and i noticed on the BIOS system overview page it shows my memory voltage as being 1.395v (not the 1.36v i set).

Before i try and go faster with tighter timings i wanted to understand if DDRVPP Voltage and Dram termination should also be auto or if i need to set values for these.

I did push my ram a bit hard on the timings at 3200mhz to 15-16-16-16-36 and it then failed to boot, i needed to reset the BIOS.

many thanks

 

[nukemdukem]

ok cool thanks - so i will keep DDRVPP Voltage to auto and Dram termination to half the dram voltage.

I wasnt aware of the ryzen dram calculator - will check it out now.