Question Trouble getting memory to advertised speeds

[SnugglePuffin]

Specs: CPU - r5 3600 ---> r7 5800x GPU

• EVGA RTX 3070 FTW3 Ultra
• MAG B550 Tomahawk
• G.Skill RipJaws V Series (2x8)(DDR4 3600) ---> G.Skill Trident Z NEO Series 16GB (2 x 8GB) (DDR4 3600)
• Corsair RM750x Gold 80 plus

As the title states. Upgraded my cpu about a month and half ago, been having memory issues since. I was able to reliably get 3600mhz speeds on my old specs, but after I upgraded to my new cpu my memory couldn't get to anything above 2933 without boot/post failure, which then required a CMOS reset to get back into bios. Decided to get a new ram kit, one that has been tried and true with my specs, the same problem still persists. I'm suspecting a bad mem controller (maybe?) and while im fine living with 2933mhz, I would like to try some things to get to the advertised speeds.

 

[kerberos_20]

rams slotted in a2/b2?

 

[SnugglePuffin]

rams slotted in a2/b2?

Yes, the ram on both kits were installed on the 2 & 4 slots or a2 & b2

 

[SnugglePuffin]

Could the bios be a possible issue as well? Before I upgraded, I updated the bios to its newest version which was in August of this year. My board was running on a 2020 version, which had no problems with getting my ram to run at 3600. ¯\(ツ)/¯

 

[kerberos_20]

Yes, the ram on both kits were installed on the 2 & 4 slots or a2 & b2

that no post is with manual ram overclock or with XMP overclock?

 

[SnugglePuffin]

that no post is with manual ram overclock or with XMP overclock?

XMP and Manual. I had a tech-inclined buddy do the manual for me.