Asus ROG Crosshair VIII Dark Hero 5950x RAM issues

[djregehr]

My current build:

Asus ROG Crosshair VIII Hero BIOS v.3601
Ryzen 5950x
Crucial Ballistix Max RGB 4000 Mhz 32GB (2 x 16GB) CL18 18-19-19-39 1.35v
MSI 2080 Gaming Trio
Asus ROG Thor 1200 PSU
EK-AIO Elite 360
Samsung 980 Pro (1TB)
Samsung 970 Evo Plus (1 TB)
SK Hynix Gold P31 (1 TB)

I am having memory issues and seek advice!

I originally bought G.Skill Trident Z Neo 3800 Mhz 32GB (4x8GB) CL14 14-16-16-36 1.5v and it would not boot in DOCP. It would boot in auto mode, but would crash repeatedly. I reseated the memory with the same results. I called G.Skill and they told me to RMA the memory. I went over the QVL that ASUS provided and purchased Crucial Ballistix Max RGB 4000 Mhz 32GB (2 x 16GB) CL18 18-19-19-39 1.35v. Same results as before.

I do have a G.Skill Trident Z 3600 Mhz (4x8GB) CL17 17-18-18-38 1.35v that I can run in DOCP mode at speed, but it won't give me anything more. Precision Boost enabled and it crashes.

In other words, the BIOS is on loaded optimal settings and any changes it will crash. Where do I go next? Currently running at 2666 Mhz. I have built many computers, but this one is providing issues. I have been running Intel, so this is my first AMD build since Athlon64. I'm not an expert, but I'm not a novice either.

My motherboard has posted 0d, F9, 00 codes. Sometimes it reboots with fans on high and nothing. I have to unplug it. CPU Temps are running between 38 - 42 Celsus.

HELP!

[Monster212KB]

I have the same issue with my asus x570 impact dtx motherboard, tried other ram same thing..I have tried everything.. hope someone answers your question

[djregehr]

I guess misery finds company. I just like to get it up and running. Not looking for OC. Just an Intel version of XMP. How does one underclock memory if 4000 Mhz doesn't work? I guess I can put the 3600 back in, but it still runs at 2666. Something seems off.

[djregehr]

Please don't highjack threads. If you want it, great. Seems like a bit of overkill at 128 GB. I would just like the memory to work at this moment.

[Monster212KB]

I guess misery finds company. I just like to get it up and running. Not looking for OC. Just an Intel version of XMP. How does one underclock memory if 4000 Mhz doesn't work? I guess I can put the 3600 back in, but it still runs at 2666. Something seems off.

I have same memory crucial ballistix max rgb 4000 and trident z cl14 neither will work with xmp or even manually setting timing nothing works its annoying

[RedSector73]

I guess misery finds company. I just like to get it up and running. Not looking for OC. Just an Intel version of XMP. How does one underclock memory if 4000 Mhz doesn't work? I guess I can put the 3600 back in, but it still runs at 2666. Something seems off.

Check you have placed the RAM in slots 2 & 4 from the CPU.
Check you have both EATX connectors, top of motherboard left of CPU, connected.

Select DOCP like this


You can also try manual SOC voltage 1.05v for 2xdimms. Did you ever try earlier BIOS ?

[Monster212KB]

Check you have placed the RAM in slots 2 & 4 from the CPU.
Check you have both EATX connectors, top of motherboard left of CPU, connected.

Select DOCP like this


You can also try manual SOC voltage 1.05v for 2xdimms. Did you ever try earlier BIOS ?

I will try the soc voltage, I have tried older bios and newest, it's so weird I have check the internet others seem to be having the same issues, but not fix, so hoping the soc increase will work..

[djregehr]

Check you have placed the RAM in slots 2 & 4 from the CPU.
Check you have both EATX connectors, top of motherboard left of CPU, connected.

Select DOCP like this


You can also try manual SOC voltage 1.05v for 2xdimms. Did you ever try earlier BIOS ?

I have not tried an earlier BIOS. Maybe that would be something to try. The EATX connectors and all firmly seated. I currently have the DIMM's in A1 & B1. Is that correct?

I have selected DOCP as you have pictured. But if the BCLK Frequency is auto populated to 4000 Mhz, it will not work. That must be set at AUTO, which decreases the speed to 2666 Mhz.

I would take pics of my BIOS if I knew how.

[D_BRASCO]

Very few have gotten a 5000 chip to boot at 4000mhz. The only way is winning the infinity fabric silicon lottery. You should be able to set the AI overclock tuner to Manual, then set Memory Freq to 3600-3800Mhz then manually set your timings in memory tab.

[RedSector73]

I have not tried an earlier BIOS. Maybe that would be something to try. The EATX connectors and all firmly seated. I currently have the DIMM's in A1 & B1. Is that correct?

I have selected DOCP as you have pictured. But if the BCLK Frequency is auto populated to 4000 Mhz, it will not work. That must be set at AUTO, which decreases the speed to 2666 Mhz.

I would take pics of my BIOS if I knew how.

A1 & B1 is slots 1 & 3 from CPU off memory.... which is not correct if this is the case and why you cant run DOCP.

That pic, isn't by me, just from the net and typical one I use to explain DOCP. Mobile phone, take pic, upload.

Honestly, ASUS should really look at why the BIOS does not simply tell a user you put it in the wrong slots when you enable DOCP, like say MSI boards do, would be much better user experience, than ha ha you got it wrong now ask for help num num ~IMO.