I recently upgraded my CPU since my build was being bottlenecked by the old Ryzen 5 2600. I've been troubleshooting as my PC refuses to POST when I have more than one RAM stick installed. I don't think this is an issue with the CPU, motherboard, or the RAM, as both sticks work perfectly fine when tested one at a time. When I put the original Ryzen 5 2600 back in, everything works well with both RAM sticks. I even tried a third CPU but encountered the same problem. Here's my build info: MSI B450 GAMING PRO CARBON AC motherboard, Ryzen 7 5700G and Ryzen 5 5600 CPU options, NVIDIA GeForce RTX 3070 graphics card, and Corsair VENGEANCE LPX 16GB RAM (2 x 8GB). I've updated the BIOS, reseated the CPU, and reset the CMOS, but I'm stuck and could use some help!
2 Answers
Typically, giving it about 5-10 minutes should suffice. If you still find it stuck after that, it might be worth trying again, just in case you missed it the last time!
When you try booting with both RAM sticks, how long do you wait before deciding it's not posting? Make sure to allow enough time for memory training; it can take a bit longer than you'd expect.

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