ASRock Industrial IMB-1222 Thin Mini-ITX Motherboard

This page describes how to run coreboot on the ASRock IMB-1222.

Technology

CPU

Intel 10th Gen (Comet lake-S) Core Processors (LGA-1200) CPUs over 80W will be limited due to power design

DRAM

2 SO-DIMM slots, DDR4 2933/2666/2400 MHz

Chipset

Intel Q470E

Super I/O

Fintek F81966

TPM

Infineon SLB 9670VQ2.0

Boot

USB, SATA, NVMe

Power

Laptop Power Supply: - 12V DC-in (IMB-1222) - 12V~28V DC-in (IMB-1222-WV)

+--------------+                        +---------------------------+    +---------------+
|     eDP      |------------------------|                           |----|  DDR4 SODIMM  |
+--------------+                        |                           |    +---------------+
+--------------+    +--------------+    |                           |    +---------------+
|     HDMI     |----|  ITE IT6563  |----|                           |----|  DDR4 SODIMM  |
+--------------+    +--------------+    |                           |    +---------------+
+--------------+                        |      Intel 10th Gen       |
| Display Port |------------------------|      (Comet lake-S)       |
+--------------+                        |      Core Processors      |
+--------------+                        |         LGA-1200          |
| Display Port |------------------------|                           |
+--------------+                        |                           |
+--------------+    +--------------+    |                           |    +---------------+
|     LVDS     |----|  CH7511B-BF  |----|                           |----| PCIe Gen3 x16 |
+--------------+    +--------------+    +---------------------------+    +---------------+
                                                      |
                                                      |
+------------------+                    +---------------------------+    +---------------+
| 4 x USB 3.2 Gen1 |                    |                           |    |   2 x SATA    |
|    Connector     |--------------------|                           |----|   Connector   |
+------------------+                    |                           |    +---------------+
+------------------+                    |                           |    +---------------+
| 2 x USB 3.2 Gen1 |                    |                           |    | M.2 KeyM SATA |
|      Header      |--------------------|      Intel Q470E PCH      |----|  PCIe Gen3x4  |
+------------------+                    |                           |    +---------------+
+--------------+                        |                           |    +---------------+
| 2 x USB 2.0  |                        |                           |    |   M.2 Key E   |
|    Header    |------------------------|                           |----| PCIe Gen3 x1/ |
+--------------+                        |                           |    |  CNVi/USB2.0  |
+--------------+    +--------------+    |                           |    +---------------+
|     RJ45     |----| I225LM/I225V |----|                           |    +---------------+
+--------------+    +--------------+    |                           |    |  M.2 Key B    |
+--------------+    +--------------+    |                           |----| PCIe Gen3 x1/ |
|     RJ45     |----|    I219LM    |----|                           |    | USB3.0/USB2.0 |
+--------------+    +--------------+    |                           |    +---------------+
+--------------+    +--------------+    |                           |    +---------------+
|    Mic-in    |    |   Realtek    |    |                           |    | TPM INFINEON  |
|   Line-out   |----|    ALC887    |----|                           |----| SLB 9670VQ2.0 |
|    SPDIF     |    +--------------+    |                           |    +---------------+
+--------------+            |           +---------------------------+
                    +--------------+                  |
                    |    ALC122    |                  | LPC
                    +--------------+           +--------------+
+-----------------------+   +--------------+   |              |    +------------+
| 2 x COM RS232/422/482 |---|   ST3243E    |---|    Fintek    |----| CPU FAN x1 |
+-----------------------+   +--------------+   |    F81966    |    +------------+
+-----------------------+   +--------------+   |    SuperIO   |    +------------+
| 2 x COM RS232         |---|   ST3243E    |---|              |----| NCT 3941SA |
+-----------------------+   +--------------+   +--------------+    +------------+
                                                      |                   |
                                               +--------------+    +------------+
                                               |   8 x GPIO   |    | CHA FAN x1 |
                                               +--------------+    +------------+

This port was created without a schematic/boardview, reverse engineering only. Feel free to make changes.

Building coreboot

The following commands will help quickly configure and build a project for this board:

make distclean
touch .config
./util/scripts/config --enable VENDOR_ASROCK
./util/scripts/config --enable BOARD_ASROCK_IMB_1222
make olddefconfig
make

Payloads

OS / Payload

EDK2

SeaBIOS

LinuxBoot

Ubuntu 22.04

V

V

V

Ubuntu 24.04

V

V

V

Windows 10

V

Android 13

V

  • LinuxBoot/Linux as payload;

  • SeaBIOS (1.16.3);

  • edk2 MrChromebox fork (uefipayload_2408).

  • Ubuntu 22.04 (Linux 6.5.0-15-generic);

  • Ubuntu 24.04 (Linux 6.8.0-41-generic);

  • Microsoft Windows 10 Pro (10.0.19045.4780, 22H2 2022);

  • Andoid 13, Bliss OS x86_64 (16.9.7, Linux 6.1.112-gloria-xanmod1).

Flashing coreboot

Type

Value

Socketed flash

yes

Model

W25Q256JV MX25L25673G

Size

32 MiB

Package

WSON-8 8x6 mm

Write protection

chipset PRR

Dual BIOS feature

no

Internal flashing

after flashing coreboot

The SPI flash can be accessed using flashrom. By default, only the BIOS region of the flash is writable:

flashrom -p internal -N -w coreboot.rom --ifd -i bios

If you wish to change any other region, such as the Management Engine or firmware descriptor, then an external programmer is required. More information about this here.

Working

  • Dual Channel DDR4 2933/2666/2400 MHz;

  • Intel UHD Graphics:

    • DP (both);

    • HDMI;

      • VGA Option ROM;

      • libgfxinit;

      • GOP;

  • PCIe x16 Slot (Gen3);

  • SATA ports;

  • USB 2.0 ports;

  • USB 3.2 ports;

  • M.2 Key-E 2230 slot for Wireless (PCIe x1, USB 2.0 and CNVi);

  • M.2 Key-B 3042/3052 slot for 4G/5G modem (PCIe x1);

  • M.2 Key-M 2242/2260/2280 for SSD/NVMe (PCIE x4, SATA3);

  • LAN1 Intel I225LM/I225V, 10/100/1000/2500 Mbps;

  • LAN2 Intel I219LM, 10/100/1000 Mbps;

  • Realtek ALC887 HD Audio (line-out, mic-in);

  • COM 1/2/3/4 ports (Fintek f81966);

  • onboard speaker;

  • HWM/FANs control (Fintek f81966);

  • S3 suspend and wake;

  • TPM;

  • disabling ME with me_cleaner XutaxKamay fork (v1.2-9-gf20532d).

Unknown/untested

  • USB 3.0 in M.2 Key-B 3042/3052 slot (currently disabled);

  • eDP/LVDS (currently disabled);

  • PCIe riser cards;

  • SPDIF;

  • SATA RAID.