Hard reboots on B550 with DOCP enabled

[Organized]

Hi,

 

I built a computer for my dad with these components:

• ASUS TUF Gaming B550 Plus
• AMD Ryzen 9 3900X
• G.Skill 2x16GB 3600MHz 16-19-19-39 (F4-3600C16D-32GVKC)

Before I installed Windows, I updated the BIOS to the latest stable version and set up the stuff in the BIOS. Of course I also enabled the DOCP profile.

 

Already in the Windows installer the computer crashed/rebooted. It just turns off and after one second it starts itself again. After many more crashes I figured out that it happens when DOCP is enabled.

I tried:

• Setting the memory to 3200MHz instead of 3600MHz
• Setting the memory to 3200MHz and loosen the timings to 17-20-20-42
• Increase memory voltage to 1.375V (instead of 1.35V)
• Increase SoC voltage to 1.1V (Manual mode)
• Set SoC voltage to Offset +0 (found this in the ASUS forums)
• Update the BIOS to the latest (beta) version

Nothing worked, the only thing I can do about it, is to turn off DOCP and let the RAM run in default (2133MHz with really bad timings). Otherwise the computer will reboot/crash from time to time. I do not get bluescreens, the computer just turns off.

 

Somebody already had the same problem here, but the thread is rather old:

Does anybody here have an idea why this is happening? How can I fix it? Is the only solution to replace the motherboard?

 

Thanks!

 

[Organized]

I forgot to mention, that I already stress tested the CPU and RAM using prime95 with DOCP enabled. It didn't crash within 10 minutes, so I'm pretty confident that the RAM itself is stable. I think this has to be a motherboard issue.

[Digideath]

Docp, xmp. It works alright for some. Not for others. The trick when it doesnt work is to find the fastest, stable settings that do work.

 

For a start make sure your ram is in slots 2 and 4. Make sure with cpuz that it's in dual channel.

 

Go in to the bios

Turn on docp

Navigate to advanced mode ram settings

Manually drop the ram speed to 3000mhz

Dont touch the timings, just the speed

 

Then try that. See if it works.