Zen 4 IMC voltages help + DRAM power delivery help

[neurotix]

Hey all,

 

First question.

My Asus ROG Strix X670-E Gaming board is giving the CPU memory controller 1.465v on Auto. My memclk is at 3100 because my RAM is at 6200MHz. I can provide bios screenshots with my phone, if need be.

 

I find this voltage to be ridiculous and am wondering if it can be lowered and to what voltage keeping in mind my really great memory OC and that it's stable right now, so I would need to rerun stress tests and also if lowering the voltage results in lower scores in AIDA64 I will put it back on Auto.

 

Second question:

In the Advanced DRAM overclocking menu at the bottom of my bios there are two settings currently on Auto that I am interested in. One is the DRAM switching frequency in Hz (I assume) and the other is the power limit the RAM can draw in Amps. Should I max these out and see if I get better bench scores in AIDA64? These previously used to be in the Digi+VRM section on ROG boards, but they're not on this board/bios, they usually were at the bottom of the Digi+ menu but instead they are moved to the bottom of the advanced dram settings.

 

Any help/advice appreciated and thanks in advance.

[neurotix]

Talking about Cpu Vddio and when I Google it I get nothing saying what it should be stock. Also, here is the DRAM voltage switching and current capability and the max settings for them, though I'm leaving them on Auto for now.

 

Also stupid question but I figured I'd ask this too: is my SP rating good?

 

 

[neurotix]

@Nikado7@Fluxmaven any ideas?

[neurotix]

Ok, so I finally found an answer to this on Reddit. I had wanted to lower CPU_VDDIO by a bit to a lot to try to reduce my temperatures.

 

Basically, it's supposed to be 1.35-1.4v.

 

However, I tried giving it 1.35v and my board was overvolting it to 1.375v. I was able to boot into Windows and pass memtestCL built into Ryzen Dram Calculator to 2400% coverage (100% for each thread). I did not run stressapptest in Linux however, because upon rebooting right after memory training I was getting POST code of 46 and my system failed to boot. I also noticed that on auto, the board is giving 1.456v to that voltage, and my memory voltage is 1.435v so it's giving nearly the same overvolt to CPU_VDDIO based on my memory voltage.

 

I will probably try setting it to 1.4v tomorrow and run through some tests, or possibly try 1.375 cuz the board will overvolt that to 1.4v and see if that works.

 

The other DRAM power delivery stuff I asked about, I have not touched and still need an answer to, but I figure my memory is running very well already so why increase heat. I might play with those settings and see if I get lower ns or something in AIDA64. However, with the crappy cooler I'm forced to use and the fact that I fold on it in Linux all the time and the system is usually saying its 64-68c just from the heat of my GPU rising and heating the memory, I will probably leave the dram power delivery settings on auto most of the time and maybe only increase them for benching.

 

So there's some answer. I'd be curious to know what Nikado7's Taichi board is giving this voltage as well as Fluxmaven's Crosshair Gene.