The Gigabyte motherboard struggles to maintain performance at speeds it previously handled well.
The Gigabyte motherboard struggles to maintain performance at speeds it previously handled well.
You're experiencing changes in your RAM configuration settings. At one point you could use 15 15 15 32, but now only 16 16 16 30 works. Even the 16 16 16 30 setup seems unstable. You need to restart your PC and reapply the profile for it to take effect. Possible reasons include adjusting voltages during testing, working with older hardware, or changes in BIOS behavior. Some users mention trying specific voltages like 1.55V, while others note instability after clearing CMOS. I'm curious if ASROCK Config could assist and allow manual entry of settings. Your configuration screenshots are helpful. You've noticed a pattern of stability issues despite previously having a consistent setup.
Your 9900k's IMC isn't responding well to odd tCWL values. Consider using 14 or 16 instead. Your tRDWR_xx settings seem very precise—maybe relax them slightly? Keep tWR and tRTP on auto since they don’t significantly affect performance. Are you relying on tRDWR_sg/dg for tWTR_L/S adjustments? As a note, it appears you have a single rank single-dimension per channel configuration, so you can safely set all "_dr" and "_dd" timings to 1—they won't apply to your setup. You can disregard those fields. If I were you, I'd enable everything except primaries first to quickly identify issues, then tweak systematically until the problem reappears.
Also, try adjusting your DRAM ratio to 100:133—it worked for me recently, so it might be worth a try.
Setting gear down when enabled will adjust timings to the closest even value. Turning it off would likely explain why you notice that change. Regarding voltage, some users experiment with 1.9V but prefer keeping it at 1.4V or lower for safety and to avoid potential damage to the imc—though I’m not sure if that’s how it actually works.
I used an even number setting for the 15CL timing. I tested both options mentioned in the Integral. It discusses this in the section on the Integral. I’m considering adjusting the TRDWR timings while leaving the rest to auto. I don’t think I’m missing anything, since it’s been posted several times already and I ran Karhu and TestMem5. The configuration appears quite stable.
Mobo setting gear down refers to adjusting the position of a mobile device's physical buttons or controls, typically for easier access or customization.
You might have actually succeeded. It was posted after I followed your instructions. I was really giving up and ordered a new motherboard. I’m using an MSI Z390m gaming edge. I’ll run tests to check stability. Edit: I set trtp to 12 and tWR to 24.