Issues occurring when starting up after enabling EXPO
Issues occurring when starting up after enabling EXPO
Hello everyone, I’m setting up my first computer and the initial boot went smoothly. After a few hours it restarted to unlock the full 6000 MHz RAM capacity. Once that was done, it took about 55 seconds for the PC to fully launch. During startup, the EZ Debugger DRAM indicator showed a yellow light. My troubleshooting steps included: updating the BIOS to the latest stable release, resetting CMOS which resolved the issue but not after reactivating EXPO. The first boot after clearing took 42 seconds. I powered off the PC for a day and then it booted normally in just 12 seconds. Using only one RAM stick produced the same result. My friend suggested that DDR5 RAM can be slower due to flashing, which is why my system runs perfectly once it starts. Before I forget, here are the details: AMD Ryzen 7 7800X3D Artic Freezer 36 Black MSI B650 GAMING Plus WIFI 64GB DDR5-6000 Kingston Fury Beast CL36 Dual Kit AMD Radeon RX 7600XT 850W 80+ Gold Power supply 1TB M.2 SSD Samsung 990 PRO Win 11 Pro
The initial start-up is usually slow during memory training. Any adjustment to memory settings—like turning on EXPO—will count as a new first boot and restart the process. More memory requires extended training time. I’m unsure about the specific AM5 BIOS configurations on MSI boards, but there should be an auto-memory-training option. If it still takes too long, switch it off from Auto to Disabled, but make sure to re-enable it afterward if you change anything else.
After you've completed EXPO and allowed the full memory training session, check the BIOS for a "remember memory context" option (refer to this post) and enable it. Alternatively, look for any settings labeled "auto memory train" and switch them off.
No worries, I understand why long memory training can be confusing... Threadripper tends to be around five times slower!