Dasharo · miczyg1 · Jul 30, 2026 · Jul 24, 2026 · Jul 24, 2026 · Jul 30, 2026
diff --git a/docs/resources/hcl/cpu/pro-b850-p-wifi.md b/docs/resources/hcl/cpu/pro-b850-p-wifi.md
@@ -0,0 +1,6 @@
+# PRO B850-P WIFI
+<!--start-->
+| CPU Model | Dasharo version |  Source  |
+|:---------:|:----------------------:|:---------:|
+| AMD Ryzen 5 8600G w/ Radeon 760M Graphics| v0.9.0 | lab setup |
+<!--end-->
diff --git a/docs/resources/hcl/memory/pro-b850-p-wifi.md b/docs/resources/hcl/memory/pro-b850-p-wifi.md
@@ -0,0 +1,6 @@
+# PRO Z790-P (WIFI)
+<!--start-->
+| DIMM vendor | Part Number | Size | SPD profile | Configuration 1/2/4 | Dasharo version | Source |
+|:-----------:|:-----------:|:----:|:-----------:|:-------------------:|:---------------:|:------:|
+| Crucial | CT8G48C40U5 | 32 GB | 4800 MT/s | -/-/&#10004 | v0.9.0 | lab setup |
+<!--end-->
diff --git a/docs/transparent-validation/msi-z690/presale-assembly-and-validation.md b/docs/transparent-validation/msi-z690/presale-assembly-and-validation.md
@@ -148,24 +148,23 @@ To prepare the motherboard the following operations should be performed:
 ## Device validation
 
 1. Connect the device to the mains.
-1. Power on the device with the button located on the front panel.
-1. If all connections have been made correctly, the device should start and
+2. Power on the device with the button located on the front panel.
+3. If all connections have been made correctly, the device should start and
     the boot logo should be shown.
-1. Install Dasharo firmware in accordance with
-    [Initial Deployment](../../unified/msi/initial-deployment.md) -
-    the `Migrating SMBIOS unique data` chapter can be skipped.
-1. Power on the device.
-1. Boot to Linux system (Ubuntu is recommended).
-1. Open a terminal window and run the following command:
+4. Install Dasharo firmware in accordance with
+   [Initial Deployment](../../unified/msi/initial-deployment.md).
+5. Power on the device.
+6. Boot to Linux system (Ubuntu is recommended).
+7. Open a terminal window and run the following command:
 
     ```bash
     sudo dmidecode -t 0 | grep Version
     ```
 
-1. The output of the command above should be similar to:
+8. The output of the command above should be similar to:
     `Version: Dasharo (coreboot+UEFI) <version>` where the version should
     correspond to the version of the flashing binary used eg. v1.0.0.
-1. Check in the system that everything is working properly.
+9. Check in the system that everything is working properly.
 
 ## Useful content
 

diff --git a/docs/unified/msi/building-manual.md b/docs/unified/msi/building-manual.md
@@ -71,6 +71,14 @@
         >   most recent release version
         > - `msi_ms7d25/release` branch for the release versions up to v0.9.0
 
+    === "PRO B850-P WIFI"
+        > Replace the `REVISION` with one of the:
+        >
+        > - `msi_ms7e56_vVERSION` tag for the given release `VERSION`
+        >   (e.g. `msi_ms7e56_v0.9.0`), **RECOMMENDED**
+        > - `dasharo-25.12` branch for a development version with unreleased changes past
+        >   most recent release version
+
     ```bash
     git clone https://github.com/Dasharo/coreboot.git -b REVISION
     cd coreboot
@@ -122,6 +130,34 @@
 
         The resulting Dasharo firmware image will be placed at `$PWD/msi_ms7e06_VERSION_ddr4.rom`.
 
+    === "PRO B850-P WIFI"
+        Download the AMD Phoenix AM5 blobs.
+
+        {{ tos_gated_downloads("msi-ms7e56-v090-blobs",
+        [{"label": "PhoenixAM5.zip", "url": "https://dl.3mdeb.com/open-source-firmware/Dasharo/msi_ms7e56/uefi/v0.9.0/PhoenixAM5.zip"}],
+        prose_section_id="msi-ms7e56-v090-blobs-prose") }}
+
+        <div data-prose-group="msi-ms7e56-v090-blobs-prose"
+            class="tos-gate-content" markdown="1"
+            style="display: none">
+
+        Unzip the package to the following directory:
+
+            ```bash
+            unzip PhoenixAM5.zip -d 3rdparty/blobs/soc/amd/
+            ```
+
+        </div>
+
+        And then execute:
+
+
+        ```bash
+        ./build.sh b850p
+        ```
+
+        The resulting Dasharo firmware image will be placed at `$PWD/msi_ms7e56_VERSION.rom`.
+
 === "Dasharo (coreboot + Heads)"
 
     # Intro

diff --git a/docs/unified/msi/development.md b/docs/unified/msi/development.md
@@ -12,12 +12,19 @@ Dasharo compatible with the MSI PRO Z690-A and PRO Z790-P platform.
 - peripherals listed in the:
     + [PRO Z690-A Hardware Configuration Matrix](../../variants/msi_z690/hardware-matrix.md)
     + [PRO Z790-P Hardware Configuration Matrix](../../variants/msi_z790/hardware-matrix.md)
+    + [PRO B850-P Hardware Configuration Matrix](../../variants/msi_b850/hardware-matrix.md)
 - [RTE](https://3mdeb.com/open-source-hardware/#rte)
 - [Sonoff S20 Smart Plug](https://wiki.iteadstudio.com/S20_Smart_Socket)
    with [custom firmware](http://web.archive.org/web/20240221030444/https://esphome.io/devices/sonoff_s20.html)
+- DB9 null modem cable (MSI PRO B850-P only)
+- DB9 serial port to 10 pin header adapter (MSI PRO B850-P only)
 
 ### Serial debug
 
+!!! Note
+
+    MSI PRO Z690-A/Z790-P only!
+
 - Attach the jumpers in `J16` header to enable header `J18` according to the
   table below:
 
@@ -27,7 +34,7 @@ Dasharo compatible with the MSI PRO Z690-A and PRO Z790-P platform.
 
 - Connect signals from the `J18` header to serial receiver:
 
-| RTE             | Msi Z690                                  |
+| RTE             | Msi Z690/Z790                             |
 |:---------------:|:-----------------------------------------:|
 | J18 pin 1 (GND) | JBD1 pin 1 (pin closer to JBAT1)          |
 | J18 pin 2 (RX)  | JBD1 pin 2 (pin further from JBAT1)       |
@@ -40,12 +47,22 @@ from booting, but we cannot provide input to the platform at the same time.
 
 ![JBD1](images/msi_z690_serial_panel.jpg)
 
+### Serial console
+
+!!! Note
+
+    MSI PRO B850-P only!
+
+1. Connect IDC 10-pin to DB9 adapter to `JCOM1` on the board
+2. Connect DB9 adapter end with DB9 null model cable
+3. Connect one end of DB9 null modem cable to RTE RS232 DB9 connector.
+
 ### SPI
 
 - For external flashing, connect `RTE` with motherboard according to the table
   below:
 
-| RTE SPI header      | MSI Z690-A/Z790-P                                    |
+| RTE SPI header      | MSI Z690-A/Z790-P/B850-P                             |
 |:-------------------:|:----------------------------------------------------:|
 | J7 pin 1 (Vcc)      | JTPM1 pin 1 (SPI Power)                              |
 | J7 pin 2 (GND)      | JTPM1 pin 7 (GND)                                    |
@@ -78,13 +95,13 @@ manual).
 
 > JFP1 is located in the corner of the mainbaord, near SATA interface ports
 
-| RTE            | MSI Z690-A/Z790-P           |
+| RTE            | MSI Z690-A/Z790-P/B850-P    |
 |:--------------:|:---------------------------:|
 | J11 pin 9      | JFP1 pin 6 (PWR_ON)         |
 | J11 pin 8      | JFP1 pin 7 (RST)            |
 | J15 pin 1 (GND)| JFP1 pin 5 (GND)            |
 
 #### Power supply control
 
-Connect `SeaSonic FOCUS Plus Platinum` power supply unit to the mains via
-`Sonoff S20 Smart Plug`. To power control via RTE, `Sonoff` smart plug
+Connect the power supply unit to the mains via `Sonoff S20 Smart Plug`. To
+power control via RTE, `Sonoff` smart plug
diff --git a/docs/unified/msi/firmware-transition.md b/docs/unified/msi/firmware-transition.md
@@ -3,7 +3,7 @@
 ## Introduction
 
 This document describes the process of transitioning from Dasharo UEFI to Heads
-and the other way around.
+and the other way around for MSI Z690-A and Z790-P boards.
 
 ## Transition from Dasharo UEFI to Heads variant
 

diff --git a/docs/unified/msi/firmware-update.md b/docs/unified/msi/firmware-update.md
@@ -140,12 +140,6 @@ Alternatively, it can be checked in the `BIOS Setup Menu`.
 
     That means you are good to go.
 
-    #### Migrating SMBIOS unique data (optional)
-
-    Before flashing you may migrate your serial number and UUID as
-    described in [Initial deployment](./initial-deployment.md#migrating-smbios-unique-data).
-    Applicable to Dasharo v1.1.0 (PRO Z690-A) / v0.9.0 (PRO Z790-P) and later.
-
     #### Flashing using flashrom
 
     === "PRO Z690-A boards"
@@ -190,6 +184,16 @@ Alternatively, it can be checked in the `BIOS Setup Menu`.
         flashrom -p internal -w [path] --fmap -i RW_SECTION_A -i RW_SECTION_B
         ```
 
+    === "PRO B850-P boards"
+
+        If updating firmware using custom builds without changing the flashmap,
+        only the `COREBOOT` partition of the flash needs to be updated. Flash it
+        using the following command:
+
+        ```bash
+        flashrom -p internal -w [path] --fmap -i COREBOOT
+        ```
+
     #### Troubleshooting
 
     Possible errors are described in the

diff --git a/docs/unified/msi/hcl.md b/docs/unified/msi/hcl.md
@@ -47,6 +47,13 @@ hardware.
             end="<!--end-->"
         %}
 
+    === "PRO B850-P WIFI"
+        {%
+            include-markdown "../../resources/hcl/cpu/pro-b850-p-wifi.md"
+            start="<!--start-->"
+            end="<!--end-->"
+        %}
+
     </center>
 
 === "Memory HCL (11 Dec 2025)"
@@ -119,6 +126,13 @@ hardware.
             end="<!--end-->"
         %}
 
+    === "PRO B850-P WIFI"
+        {%
+            include-markdown "../../resources/hcl/memory/pro-b850-p-wifi.md"
+            start="<!--start-->"
+            end="<!--end-->"
+        %}
+
     </center>
 
 === "GPU HCL (manual)"
@@ -302,5 +316,32 @@ Maintainer documentation](../../dev-proc/hcl-maintainer.md).
       Dasharo version:
       ```
 
+=== "PRO B850-P (WIFI)"
+    - Use [Dasharo Tools Suite HCL report](../../dasharo-tools-suite/documentation/features.md#hcl-report)
+      to upload report automatically.
+    - Create new issue in [Dasharo issues repository](https://github.com/Dasharo/dasharo-issues/issues/new?assignees=&labels=P%3A+default%2C+T%3A+hcl&template=hcl-report.md&title=CPU+HCL+report+for+msi_b850).
+    - Create PR directly to [Dasharo documentation repository](https://github.com/Dasharo/docs).
+
+    - [CPU HCL email](mailto:contact@dasharo.com?subject=CPU HCL report for msi_b850)
+      your `/proc/cpuinfo` or relevant information using following template:
+
+      ```text
+      CPU model:
+      Dasharo version:
+      ```
+
+    - [Memory HCL email](mailto:contact@dasharo.com?subject=Memory HCL report for msi_b850)
+      as attachments outputs of following command:
+
+      ```bash
+      decode-dimms > decode-dimms.log 2> decode-dimms.err.log
+      ```
+
+      In email please include Dasharo version.
+
+      ```text
+      Dasharo version:
+      ```
+
 If you already have reported your results and you change some hardware
 configuration we would appreciate an update.