TUF GAMING X670E-PLUS WIFI Memory issues

[rogerjansen1970]

I have the TUF GAMING X670E-PLUS WIFI with the AMD Ryzen 9 7950X. I had the 4x16 Corsair memory which worked fine but was only 64 gigs. I order the 4x32 CORSAIR CMH128GX5M4B5600C4 to get to 128 gigs 5600 speed. I can boot the computer past bios if I leave the DOCP set to auto but it only runs at 3600. If I try to turn on DOCP I once I reboot it takes me back to safe mode bios saying there is a problem. I have tried this a few times and even tried DOCP II and same issue. I cant seem to get it to boot up if I set any of the DOCP I or II. Any one have any advice what to try or do to get this to work? The 4x32 is on the vendor site is supported memory and I have updated to the new bios that just came out last month and still unable to get this to work. Any advice would be grateful. Thanks.

[Silent_Scone]

Hi @rogerjansen1970 

5600MT in that density is going to be tough for some CPUs, you may have to resort to lowering the frequency closer to stock. 

Please see the QVL

There's a good reason high-speed 4 DIMM kits aren't that common, and the memory kit you have purchased is not validated for this motherboard. I would consider lowering the frequency to 5200MT and see if you're able to pass POST stress tests.

[rogerjansen1970]

The one you have high lighted is not the memory I have, the one i have in this screen shot is the one i have and it says 5600 and it is supported. Unless i am not understanding something or misreading something?

[Silent_Scone]

Unfortunately, it is not listed for the 7000 series CPUs. 9000 series has some improvements to the memory controller which increase the probability of success. 

As per the above, change the frequency to 5200MT and see if this aids stability. 

[rogerjansen1970]

Thanks for pointing out. I did not even notice the CPU being different. I order the correct supported memory for both the board and the CPU which is Kingston FURY Beast RGB Black KF552C40BBAK4-128 which is on the list for supported 4x32 which is on the list if I am reading it right and I seem to still have the same problem where it boots up safe mode bios saying there is a problem. I tried both DOCP I and DOCP II and both keeps booting to Bios safe mode. It will boot up if I set it to automatic but only as 3600. Any suggestions? Thanks in advance for your time on your advice and helping.