I have a Ryzen 5 5500 CPU paired with a Gigabyte B550 UD AC motherboard and I'm using Kingston Hyper X Predator DDR4 RAM that's rated at 4000MHz (2x8GB). I've tried enabling XMP in the BIOS, but it won't run at 4000MHz; it only operates at 3600MHz. I have two profiles available: one for DDR4-4000MHz with timings of 19-21-21-42 and another for DDR4-3600MHz with timings of 17-18-18-39. Any tips on how to get the RAM to run at its full potential would be greatly appreciated!
5 Answers
Have you made sure to select the correct XMP profile in the BIOS? Sometimes it's easy to miss that step. Double-check your settings!
For best results, it seems like 3600MHz with a 1:1 FCLK ratio is the way to go. If you want to experiment with higher RAM frequencies, remember that it could introduce latency issues, which might cancel out any speed gain you get from running faster RAM.
Honestly, if your system runs stable at 3600MHz, it might not be worth the trouble to push it faster. Stability is key, and 3600 is still pretty solid performance.
Just keep in mind that your motherboard supports 3200MHz officially, so anything beyond that is considered overclocking, and it’s not guaranteed to work.
XMP doesn't always play nice with every system configuration. You might need to manually overclock the memory using tighter timings or try the second XMP profile to see if that works better.
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