Checking for issues with 4 dimm units at 2400V or no visible problems.
Checking for issues with 4 dimm units at 2400V or no visible problems.
Recent updates include four RAM modules in the system. The last two were using an XMP profile at 3200MHz, but now with four sticks the system is functioning without any issues. Running at the default speed of 2400MHz is recommended. Testing shows performance around 2667MHz.
Four sticks puts a lot of strain on the IMC for Zen plus a few tweaks. Update the BIOS: set the SOC to 1.1 Drm 1.35 (adjust to 1.4 if needed). Configure the frequency to 2933 with docp and xmp active. After boot, run memtest86 and OCCT to confirm stability. Anything above 2933 is technically an overclock for Zen plus—especially with four sticks. Good luck. Edited June 22, 2020 by TofuHaroto
BIOS updated to the second latest version from December 2019, which was a beta release. I'm not the original creator, just changed the XMP settings. The DRAM voltage is set at 1.35V, but I'm unsure what the specific model should be. I've tried both XMP1 (2933) and XMP2 (3200), but neither has started up. It might be a CPU hardware limitation.
Soc is about memory controller, which adds complexity but is important
Thanks for the assistance. It seems I can get the system running with version 1.1v, 1.35GHz RAM at around 18-20-36 timing. Looks like the voltage was too low for four dimmers—only about 0.7V was recorded that day. Stress testing the RAM didn’t cause any problems in a few days, but I’ll try again later when I have more time.