I've got a new build with a 9800X3D CPU and two 16GB G.Skill Flare X5 RAM sticks. I enabled EXPO 1 to run my RAM at the advertised speed of 6000MHz, but now my PC takes about a minute for memory training before it can boot up. This has been happening since I built it. If I turn off EXPO, the issue goes away, but I want that maximum speed. I had a different bundle before that was fine initially but started the same memory training problem, so I switched it out. I've also updated my BIOS on the ROG Strix X870E-E. Should I consider replacing my CPU, or is there another underlying issue?
3 Answers
Are you allowing the memory training to complete each time? It might take some time initially, like 20 minutes or more, especially after a power outage or BIOS upgrade, but it should stabilize after that.
Memory training is standard for DDR5. However, it shouldn’t take a minute. For me, it only takes about 15-20 seconds on a cold boot with 32GB of RAM and a 7800X3D.
The memory training at first is expected. Try turning on memory context restore in your BIOS. This option can significantly reduce your boot time.

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