Hello.
The platform I have is:
- Ryzen 3900X (chip from this year, bought few months ago) undervolted by - 0.1V
- ASUS Crosshair VIII Hero WiFi motherboard with the latest bios
- RAM DDR4 32GB (4x8GB) G.Skill Tridentz Neo 3800mhz CL14 1.5V
I have problems with maintaining stability on 3800mhz memory clock. Well, sometimes the PC boots properly with the XMP profile turned on (but always the second time it turns on, rarely the second time), and sometimes it tries to turn on several times, but eventually it doesn't turn on with the XMP profile and then the RAM has 2133mhz clocking.
Memory voltage according to XMP profile is 1.5V. However, the motherboard registers 1.496V at this value, so I have to set the memory to 1.51V for the motherboard to register the full 1.5V
For the XMP profile to work sometimes I have to set the FCLK value in bios manually to 1900mhz - setting the auto option causes pc to have even more problems with boot.
If I can already boot a PC with XMP profile enabled, then Infinity Fabric works well in 1:1 mode.
After reducing the memory clock to 3733mhz and setting the FCLK manually to 1866mhz everything works very well - the computer boots immediately, there are no problems and the memory always works.
Do you have any idea what I could do with these memories to make them work well with XMP profile turned on? Maybe some options in BIOS? Or am I just not lucky and my chip is not stable at IF 1900mhz?
By the way, I'm asking you to judge the timings - I've been reducing it based on DRAM Calculator and some knowledge from the Internet, but I don't know about it and maybe there are some values to correct.
The platform I have is:
- Ryzen 3900X (chip from this year, bought few months ago) undervolted by - 0.1V
- ASUS Crosshair VIII Hero WiFi motherboard with the latest bios
- RAM DDR4 32GB (4x8GB) G.Skill Tridentz Neo 3800mhz CL14 1.5V
I have problems with maintaining stability on 3800mhz memory clock. Well, sometimes the PC boots properly with the XMP profile turned on (but always the second time it turns on, rarely the second time), and sometimes it tries to turn on several times, but eventually it doesn't turn on with the XMP profile and then the RAM has 2133mhz clocking.
Memory voltage according to XMP profile is 1.5V. However, the motherboard registers 1.496V at this value, so I have to set the memory to 1.51V for the motherboard to register the full 1.5V
For the XMP profile to work sometimes I have to set the FCLK value in bios manually to 1900mhz - setting the auto option causes pc to have even more problems with boot.
If I can already boot a PC with XMP profile enabled, then Infinity Fabric works well in 1:1 mode.
After reducing the memory clock to 3733mhz and setting the FCLK manually to 1866mhz everything works very well - the computer boots immediately, there are no problems and the memory always works.
Do you have any idea what I could do with these memories to make them work well with XMP profile turned on? Maybe some options in BIOS? Or am I just not lucky and my chip is not stable at IF 1900mhz?
By the way, I'm asking you to judge the timings - I've been reducing it based on DRAM Calculator and some knowledge from the Internet, but I don't know about it and maybe there are some values to correct.
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