Boot issues arise when using RAM speeds exceeding 5000MHz with XMP profiles.
Boot issues arise when using RAM speeds exceeding 5000MHz with XMP profiles.
You're experiencing boot problems when using XMP and high-speed RAM, despite everything working at 5000MHz. It might point to a motherboard or compatibility concern. Check if the BIOS is up to date and see if adjusting voltage settings helps. Also, verify that your RAM is genuine and properly seated. If issues persist, consider testing with different RAM modules or consulting Asus support for further guidance.
On DDR5 6400 that seems unlikely to help, and I've noticed cases where it actually slows memory performance. With Intel DDR5, the optimal voltage range exists at some point, and the system agent tends to target a lower setting. To start troubleshooting, verify which memory slots you're using—ideally slots 2 and 4 if you're counting from the CPU. Incorrect slots might be the issue. Even with correct slots, a reseat is recommended because DDR5 is quite sensitive to mounting pressure; too much or too little can cap speeds at very low levels.
Do you have two or four sticks? Four sticks remain somewhat risky at speeds above the basic Jedec limit.
You installed four separate 16GB RAM sticks, each in its own case, rather than buying them as a combined package. This setup might affect performance or compatibility depending on your system requirements.
Deary, you're dealing with a tough setup—double the challenge of a kit and four sticks. At around 5000mhz, most DDR5 systems struggle with four sticks running smoothly. Kits are built for sticks that match in capability, but four separate sticks might vary slightly. Imagine the memory controller as a server handling requests, and the dimms as customers: is it better to spread the load across two tables with two people each, or combine everything into one table with four people? Probably the latter—two smaller teams are easier to manage, with fewer items to move and simpler checks.
It usually takes a bit of luck or heavy adjustments to make it run at 5000MT/s. If it does, I’d stick with it. For faster speeds, experiment with newer BIOS versions—though they don’t always improve—and revisit older revisions; sometimes you’ll find something that supports 6000MT/s. A 6400 chip is unlikely to work.