RAM clocks and voltages with B450M Pro4

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   You are almost certainly running into a limitation from the CPU.  I think you are doing very well to get good results at 3200 MT/s.  The 2200G (and 2400G) are fundamentally Ryzen 1 parts, although I don't know what tweaks might have been borrowed from Zen+.  The 3200G and 3400G are Ryzen 2 parts so they might be slightly better at higher memory speeds - not going to match the true Zen 2 units though.

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kschendel Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 21 Aug 2018 Status: Offline Points: 86	Post Options Post Reply Quote kschendel Report Post Thanks(1) Quote Reply Posted: 17 Jul 2019 at 11:36pm
	You are almost certainly running into a limitation from the CPU. I think you are doing very well to get good results at 3200 MT/s. The 2200G (and 2400G) are fundamentally Ryzen 1 parts, although I don't know what tweaks might have been borrowed from Zen+. The 3200G and 3400G are Ryzen 2 parts so they might be slightly better at higher memory speeds - not going to match the true Zen 2 units though.

8EN317 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 21 Apr 2019 Status: Offline Points: 13	Post Options Post Reply Quote 8EN317 Report Post Thanks(0) Quote Reply Posted: 17 Jul 2019 at 6:48pm
	Hello Everyone. I'm having issues with my RAM speeds&timings&voltages on my B450M Pro4 motherboard. The RAMs are 3400Mhz 2x8GB Patriot Viper4 dual channel kit (PV416G340C6K), the CPU is 2200G Ryzen3 and the board is the B450M Pro4. I cannot get it boot on stock XMP profile, which is set to 3400Mhz. I had to step down to 3200Mhz, and even fine-tuned the timings according to Ryzen Calculator suggestions. It gained some performance over stock xmp timings with 3200mhz. This clock speed is stable at 1.29V. Yet, whenever I try to boot on 3400Mhz, even with relaxed timings, the PC just refuses to boot. It goes through a few "fail" cycles, restarts itself, then, stock bios settings are restored. What would be the best way to make this work? New Asrock B450M Pro4 BIOS limits RAM voltages to 1.4Volts. Also, CPU SOC voltage is 1.1V at maximum, though I'd rather set 1.07 or some such. Even with relaxed timings, it refuses to work. Or, is it the limitation of my 2200G cpu? As I know, this unit still uses regular Zen-1st gen architecture and not very famous for the internal memory controller. Do I assume correctly, that probably with a better CPU, those RAMS should work? I tried them with 3000Mhz CL14.. and 2666Mhz CL12... timings, those went great. But I'd rather much run them at their advertised speed.. Any hints-advice or something? I appreciate any assistance. Thank you for reading through. Regards