AB350M Pro4 SOC voltage

NJT_PPT wrote: Does anyone know if ASRock is planning on adding SOC voltage manipulation in the next BIOS? Seeing how this parameter is so important to get a stable memory overclock, I don't see how I can get my RAM to run at its rated speeds without a higher SOC voltage.  Thank you.

I have the SOC voltage option in my ASRock X370 Killer SLI/ac board, and even when set to 1.2V+, I cannot get my Ryzen specific G.SKILL FlareX 3200 memory to run at 3200. 2933 is the highest stable speed I can achieve.

Believe me, SOC voltage is not the magic cure to over clock your memory. Just like AGESA 1.0.0.6 was also not the magic fix for memory over clocking on Ryzen.

More important is the model of DDR4 memory you use. Certainly not every model of DDR4 memory can be over clocked with Ryzen, and then be able to reach speeds over 2933. Memory speeds of 3200 and beyond are happening on only a few models of DDR4 memory.

There is another factor to consider, sorry to say. We are talking about an $80 board, which is a budget model. The SOC in a Ryzen processor actually has its own VRM circuitry on the mother board to supply it with voltage and power. Can we expect a budget level board to have an SOC VRM design equivalent to more expensive boards, like my mid range X370 Killer SLI/ac ($160)? Sorry, no. That is the most likely reason you do not find an SOC voltage option in this board's UEFI/BIOS.

Ryzen 7 processors are AMD's first use of DDR4 memory. If the rated speed of your memory is an over clock given your processor and board specs, it is not guaranteed. That is what the memory manufactures will tell you, certainly G.SKILL said this about my FlareX memory.

danielcepa wrote: i would start from scratch. Reset UEFI to defaults Edit: Like i said, raise the RAM voltage to 1.3 - 1.35 from the overclock tab. Leave the rest untouched AMD CBS is the last menu item in the ADVANCED tab

I tried the method you have above, sadly still won't boot at anything above 2133.

Thanks anyway!

danielcepa wrote: wardog wrote: [URL=][/URL] danielcepa wrote: wardog wrote: danielcepa wrote: 2. If you overclock the RAM manually (i set my 32GB Corsair LPX from 2400 to 2933 @1.30V) from Advanced UEFI menu - AMD CBS; the board wil automatically overclocked the SOC to a fixed 1.087-ish voltage for stability. This is a result of OC'ing the memory. Ryzen does this automatically when OC'ing either processor and or memory. Figured that much out, but this behaviour is not obvious in any way :) BTW. CPU is at stock settings. No. It's not obvious. That's why I piped in, to say so for those that weren't aware it does this. In AMD CBS(forget which heading below it) do you have the option to set SoC voltage? There are some settings there that aren't available through the BIOS. Heck, you can just as easily OC the board from within it. I don't have a clue what this board has available under AMD CBS. no, there are no voltage settings under Adavanced / AMD CBS actually, there is one under NB CONFIGURATION , but its CLDO_VDDP - whatever that is speaking of AMD CBS This is by far the most stable way to overclock / set the memory speed. First, dont touch the XMS setting, leave it on Auto, or wtv. In the overclock tab adjust only the RAM Voltage. In the AMD CBS / Memory tab just enable overclocking, set the desired speed, the first five timings (eg. 16-16-16-16-32) , procODT (53.3ohm), done. Leave the rest on Auto If the setting stick and are stable (windows boot, Memtest, etc) the cold boot / reboot related issues are gone. 2.60 BIOS, R7 1700

Thanks for this. Will try this when I get home.

I haven't managed to get my 3200rated RAM above 2133 via "OC Tweaker".

So I should leave the OC/XMP page alone and find AMD CBS? Where is that?

2000 even while in AMD CBS?

Have you enable Overclocking in AMD CBS?


Sorry man. The manuals covering anything other than the "standard' BIOS is lacking. Actually, non-existent.

danielcepa wrote: wardog wrote: danielcepa wrote: wardog wrote: danielcepa wrote: 2. If you overclock the RAM manually (i set my 32GB Corsair LPX from 2400 to 2933 @1.30V) from Advanced UEFI menu - AMD CBS; the board wil automatically overclocked the SOC to a fixed 1.087-ish voltage for stability. This is a result of OC'ing the memory. Ryzen does this automatically when OC'ing either processor and or memory. Figured that much out, but this behaviour is not obvious in any way :) BTW. CPU is at stock settings. No. It's not obvious. That's why I piped in, to say so for those that weren't aware it does this. In AMD CBS(forget which heading below it) do you have the option to set SoC voltage? There are some settings there that aren't available through the BIOS. Heck, you can just as easily OC the board from within it. I don't have a clue what this board has available under AMD CBS. no, there are no voltage settings under Adavanced / AMD CBS actually, there is one under NB CONFIGURATION , but its CLDO_VDDP - whatever that is speaking of AMD CBS This is by far the most stable way to overclock / set the memory speed. First, dont touch the XMS setting, leave it on Auto, or wtv. In the overclock tab adjust only the RAM Voltage. In the AMD CBS / Memory tab just enable overclocking, set the desired speed, the first five timings (eg. 16-16-16-16-32) , procODT (53.3ohm), done. Leave the rest on Auto If the setting stick and are stable (windows boot, Memtest, etc) the cold boot / reboot related issues are gone. 2.60 BIOS, R7 1700

Scroll down to "What's next for memory". Note this page addresses the changes/additions covering AGESA 1.0.0.6 only. CLDO_VDDP is among those explained. procODT too.
https://community.amd.com/community/gaming/blog/2017/05/25/community-update-4-lets-talk-dram