I recently upgraded to a Zen 4 Ryzen 5 7600 CPU, and after one of my 6000 CL30 memory sticks failed, I got a new G.Skill Trident Z5 RGB kit with 16GB per stick at DDR5-6400 CL32. The kit doesn't have EXPO profiles, just an A-XMP profile. I'm considering running the memory controller at 3200 MHz. If that doesn't work out, should I downclock the RAM to the ideal 6000 CL30 timings or even try for CL28, or is it better to just run the 6400 CL32 as it is?
1 Answer
Downclocking could be a good option, especially if you want to avoid the hassle of trial and error to stabilize everything. It'll likely be more straightforward and dependable. Plus, running at a stable clock can improve performance over just leaving it on the higher settings if you can't get it stable.

Getting the memory controller stable at 3200 can be tricky. My typical process involves finding the UCLK ratio in BIOS and setting it to 3200. If it doesn't boot, you might need to clear the CMOS. But honestly, if the downclocking is simpler and reliable, it might save you some headaches.