Question RAM don't OC with latest AM4 BIOS

[davide445]

Updated yesterday the ASUS PRIME B450-PLUS to latest 2202 BIOS using AM4 AGESA 1006, and the RAM G.Skill F4-3200C16D-32GVK is working now only at 2133Mhz instead of the 3200Mhz I was able to set in the past release.

ASUS told me they are not QVL but they wheren't also before, so wanted just to ask if there is anything I can do or better roll-back to previous BIOS release.

 

[Fardringle]

I had a similar problem with the RAM on my Gigabyte X570 board after a recent update. The XML profile said it was still active, but the RAM wouldn't run at anything faster than 2133Mhz. I was able to fix it by leaving the XML profile active (for speed and timing settings) and manually setting the RAM voltage to 1.35V, which is what it should be using automatically with XML active. Once I set the voltage properly, my RAM started running at 3600Mhz again.

 

[davide445]

Thanks for the suggestion.
Tried to set the RAM speed at 3200Mhz and the voltage at 1.35V and give me an error.
Tried also to load the DOCP Profile for the RAM (I read it's ASUS XMP equivalent) but same result.
Not sure if I will break someting and will make sense setting only the RAM voltage without changing RAM speed from Auto, or maybe rise a bit more the voltage at 1.4.

 

[Shmee]

You may need to manually adjust some timings, such as setting command rate to 2t, or go back to a more stable bios for now.

 

[papapapapapapapababy]

that blows, i had no problem with the bios update on my ASUS PRIME B450 A, the only one been my old profiles got screwed really bad * loading then showed strange settings. so i cleared cmos, removed battery and made new ones, give that a go, the other is to rollback tho the older bios it should be doable i think

 

[Hans Gruber]

Always manually do your ram. Always keep a known good bios in case you run into a new bios that does not support your memory or is just a bad bios.

 

[davide445]

Thanks all for the very good suggestions, will experiment more and report back.