Motherboard post code

[SimplyMoron]

I just updated the bios on my motherboard Asus X670E-E gaming from version 1709 to 1905. After the bios update I went ahead and changed my ram frequency back to 6000MHz which was completely stable till now but after the update the system won’t boot with this ram speed. Should I do a BIOS flash back or run my ram at a lower speed?

[RONOTHAN##]

Running 4 DIMMs of DDR5 is very dependent on the BIOS revision for whether it will be stable at high frequency. If it worked on the old BIOS revision and you don't have a reason to use the newer revision, go back to the older BIOS revision. 

[SimplyMoron]

4 minutes ago, RONOTHAN## said:

Running 4 DIMMs of DDR5 is very dependent on the BIOS revision for whether it will be stable at high frequency. If it worked on the old BIOS revision and you don't have a reason to use the newer revision, go back to the older BIOS revision. 

Thank you. Will do that. I changed to the newer version because my system was taking too long to boot because of memory training so I wanted to see if updating to the newer bios would reduce the time.

[RONOTHAN##]

4 minutes ago, SimplyMoron said:

Thank you. Will do that. I changed to the newer version because my system was taking too long to boot because of memory training so I wanted to see if updating to the newer bios would reduce the time.

Having used the newer BIOS revisions, it doesn't help. What can help is enabling Memory Context Restore (this should be in the Advanced tab > AMD CBS > UMC Options > DDR Options > DDR Memory Features), though this can also cause weird stability issues in some situations, so if you run into them disable that setting.