Ryzen 3400g with an MSI B450 MORTAR fan rpms

Tommaso_ · July 19, 2019

Hi everyone, i made a new office build including the new Ryzen 3400g and an MSI B450 MORTAR. It works pretty well but with the new updates of the MSI bios (they changed from the normal UI to the lite version) there are some issues with the speed of the cpu fan. I'm using the stock cooler and the fan RPM are much higher than they should be. It idles at 35-40C but the fan is spinning like crazy and in the new BIOS seems that msi removed all the options to regulate the fan RPMs, the air from the cooler is not hot at all an the heatsink is cool, so i guess that it's really going at a much higher RPM than it really needs. I've applied no overclocking except for the RAMs to which i've enableb xmp. Has anybody encountered this problem and know a possible fix? or do i have to wait for MSI to revert back to the non-lite GUI of the bios?

Thanks in advance.

Senzelian · July 19, 2019

There has to be an "expert"- or "expanded" mode or something. Usually accessible with F7. Every BIOS needs to have fan controls build in. It'd be ridiculous if it wouldn't have them.

I guess rolling back to an older version isn't possible because you needed the update for the 3400G?

Tommaso_ · July 19, 2019

Just now, Senzelian said:

There has to be an "expert"- or "expanded" mode or something. Usually accessible with F7. Every BIOS needs to have fan controls build in. It'd be ridiculous if it wouldn't have them.

I guess rolling back to an older version isn't possible because you needed the update for the 3400G?

I saw no options to switch to an "expert" mode only to use single features in advanced mode (mainly overclocking), and yes, i can't rollback to an older version because they changed the GUI along with adding the ryzen 3000 support.

Senzelian · July 19, 2019

Just now, Tommaso_ said:

I saw no options to switch to an "expert" mode only to use single features in advanced mode (mainly overclocking), and yes, i can't rollback to an older version because they changed the GUI along with adding the ryzen 3000 support.

Since I don't know what the new BIOS looks like your best bet is probably to just contact MSI.
Again, there has to be a way to change the fan speed.

(Yeah, "advanced"-mode was the word I was looking for )

You can also use third-party software to control the fan speed of course, but that's not something I would do, because it can easily reset itself because of updates and such.

Tommaso_ · July 19, 2019

1 minute ago, Senzelian said:

Since I don't know what the new BIOS looks like your best bet is probably to just contact MSI.
Again, there has to be a way to change the fan speed.

(Yeah, "advanced"-mode was the word I was looking for )

You can also use third-party software to control the fan speed of course, but that's not something I would do, because it can easily reset itself because of updates and such.

Yeah, i don't like using software control too, i'm probably going to contact MSI (thanks, i didn't think about it) and see if they reply me...