5900X FClk

[therealdippy]

I'm in the process of tuning my newly built PC, moving away from the default settings where I can. I bought some Corsair 4000MHz memory but was aware that in the PC default config it was running at 3200Mhz ish. I just enabled XMP in BIOS and rebooted and HWInfo shows that the current clock is now 2000.2MHz. If I have no issues is that all I have to do? I noticed that I can set the CPU FClk in BIOS - should I also set it to 2000MHz or should I leave it on auto?

 

[therealdippy]

I installed Ryzen Master which showed that FClk was 1800MHz. So I had a go at setting FClk to 2000MHz. Initially I thought it was OK but when I launched a benchmark the PC crashed. I checked the event log and saw that it was full of WHEA errors. I then tried 1900MHz and my PC's fans and RGB went nuts and when I went back into BIOS it told me that it had been reset so I have to restore from a saved profile. I set FClk back to AUTO and FClk is showing 1800MHz. Should I just accept that 1800MHz is the limit of my CPU and in hindsight I'd have been better of buying 3600MHz memory?