MSI B450M Mortar Latest BIOS

R3v4n · 26 Mar 2021 at 09:52

Has anyone tried the latest BIOS on the B450M Mortar from MSI?

Or any of the B450 boards for that matter?

It seems to enable SAM for Ryzen 3000 series CPUs? Link - MSI Global

It says on the site its a beta BIOS, curious if anyone has tried it...?

Joxeon · 26 Mar 2021 at 13:08

I'm using a Beta version for the b450 tomahawk and it's been fine running a 5800X.

One updated there should be an option in the bios settings/advanced/PCIe sub systems above 4g memory called resizable BAR which needs to be enabled to run SAM.

R3v4n · 26 Mar 2021 at 16:37

Alright cool thanks for the info!

Maybe I'll take the plunge tonight and give it a go haha.

OpenToSuggestions · 26 Mar 2021 at 16:40

R3v4n said:
Has anyone tried the latest BIOS on the B450M Mortar from MSI?

Or any of the B450 boards for that matter?

It seems to enable SAM for Ryzen 3000 series CPUs? Link - MSI Global

It says on the site its a beta BIOS, curious if anyone has tried it...?

Works a treat with my 5800X.

pc-guy · 30 Mar 2021 at 08:49

I don’t think SAM is available for zen2 CPUs yet.

the option would only been seen in BIOS if you have a zen3 CPU.

On my X570 unify, I had the BIOS with SAM for ages and I had the 3900X in it, no option for SAM in PCIE options. But now I have 5800x and it is there.

BogEyes · 6 Apr 2021 at 09:16

OpenToSuggestions said:
Works a treat with my 5800X.

Running a 5800X in a B450 Mortar with SAM enabled?

OpenToSuggestions · 6 Apr 2021 at 10:16

BogEyes said:
Running a 5800X in a B450 Mortar with SAM enabled?

I'm not sure about SAM, but it works well on the latest bios and also worked on the previous release

.

Moeks · 12 Apr 2021 at 11:43

Yes I have tried it, using BIOS version 7B89v2C on the B450M Mortar Max I got it running yesterday using a Ryzen 5 3600 and an RX 6700XT using smart access memory, I wasn't sure if it would work tbh but it does, shows up in task manager with the large memory range and I can show an approximately 5% performance improvement in Shadow of the Tomb Raider for example. I will be putting a 5800X into the board in a few days time which is why I updated the BIOS really, but I was curious to see if it would run SAM with the 3600 and that's a yes.