The Ryzen 3700X is running at 1700mhz FCLK?
The Ryzen 3700X is running at 1700mhz FCLK?
Fclock must either operate on Auto or match exactly half the RAM speed. For example, with a 3200MHz RAM, Fclock should be set to 1600. It will be correct at 1700 only if the RAM runs at 3400MHz. Raising Fclock beyond its required level causes instability. Infinity fabric handles communication between chips, so it requires being half or less. The timing you send and receive must stay in sync. Reducing RAM speeds to 3200MHz with 14 timings—plus keeping Fclock at 1600—might offer better stability. Performance gains between 3600/16 and 3200/14 are minimal, but lowering clock speeds improves reliability for four sticks.
I experienced freezes in Destiny 2 and spent a week trying to fix the overclock issue. It turned out the problem was related to the Nvidia drivers, and the latest update now marks it as resolved. Some players report that 3700x don’t run smoothly at 1800 FCLK without problems. Usually, 1900 FCLK is recommended. If you think there’s an overclock issue, perform the stability tests correctly. For AMD users, run Prime95 Large FFTs and OCCT VRAM with maximum utilization together to stress the FCLK and verify stability. This should be done after any changes to frequency or FCLK. Setting FCLK to auto and xmp to DDR4-3600 on my motherboard prevents booting. For me, 1800/3600 CL16 performed better than 1600/3200 CL14.
It could be simpler if you run the CPU at its standard speed and then check the memory performance. After confirming everything works smoothly, return the CPU OC to its original setting. Others might agree, suggesting a slight adjustment to the SOC level could be beneficial. Remember, as mentioned before, the Ryzen 3xxx CPUs perform equally well at 1600/3200 MHz, and going higher is just extra.
I agree: try running CPU at stock, using PBO only, to check if memory will stabilize for you.
Also: Bdie is very tolerant of voltage changes and enjoys being overclocked. It's normal to see it run at 1.5+ V during a high overclock; don't hesitate to push it higher if you haven't tried yet. I've been using my GSkill 3200 kit at 3600 with 1.475V for about four years without any issues once the timing was set. It seems like keeping airflow across the DIMM's is a good idea, but mine has never gotten much warmer than it does at stock 3200 speed.
On a slight deviation, and despite your mention that you've already updated the bios, have you reset the CMOS after the update? This is essential for proper functioning. Remember, performing this step will erase your OC settings, even if you attempt to load saved profiles. You'd then need to begin with a clean slate, since some voltage levels will shift with the new microcode (this usually occurs, though not always).
You might also consider this method for a complete reset. These are the guidelines from @Darkbreeze, a key contributor on Tom's:
BIOS Hard Reset procedure
Power down the device, switch off the power supply and detach the PSU cable from either the wall outlet or the power source.
Take out the motherboard's CMOS battery for roughly three to five minutes. In certain situations, you may need to remove the graphics card to access the battery.
While the battery is removed, keep pressing the power button on the case continuously for 15-30 seconds, which helps drain any remaining charge in the CMOS circuit. Once the five minutes have passed, reinsert the battery, making sure to place it correctly as it was removed.
If you had to detach the graphics card, you can reinstall it now, but be sure to reconnect any power cables and your display cable.
After that, reconnect the power supply cable, turn the PSU back on, and restart the system. It should show the POST screen and provide options to enter CMOS/BIOS configuration. Enter the bios setup program and adjust the boot settings for either the Windows boot manager or legacy systems, depending on your OS installation.
Save your changes and exit. If the system successfully POSTs and boots, you can proceed further, including returning to the BIOS to set up additional custom configurations such as Memory XMP, A-XMP, D.O.C.P profiles, fan settings, or other specific parameters that may have been lost during the reset.
In certain scenarios, after resetting the BIOS, it might be necessary to load the Optimal or Default values and then save your settings to fully reinitialize the hardware tables.
Apologies, I wasn't able to locate the original guide, so I've copied the text from another discussion.
Increasing ram voltage can enhance stick stability by four times, regardless of the base speed being 3600mhz.