Igel M350C: Hardware 

• Hardware
• Disassembly
• Firmware
• Linux

The M350C aka UD3-LX 60 is/was part of Igel's UD3 line of thin clients. Mine came without a foot.

I believe the M350C was launched in February 2020 (availability from May 2020) and was positioned as being

First Endpoint Device Optimised for Teradici PCoIP Ultra Enhancements.

The M350C is fitted with a custom version of the AMD R1505G SoC optimised for low power - see the CPU section below.

Specifications

The basic specs are:

Processor
Type    Speed	AMD Ryzen Embedded R1505G 2.0GHz - 2.7GHz (boost)
Chipset
Type	Built-in
Memory
Flash    RAM	8GB eMMC 2x2GB DDR4 (32GB max?)
Video
Chip    Max resolution	Radeon Vega 3 2 x 4K (Display Port)
Ports
Video    Network    USB    Serial    Parallel    PS/2	2 x Display Port 1.2 10/100/1000 Front 2 x USB3.2, 1 x USB3.2 Type C back 2 x USB 2.0 internal 1 x USB2.0 1 none none
Power
Supply    Plug    Off    Running    Idle	12V 4A (label) Coax 5.5mm/2.1mm 0.9W 15W 9.3W
Dimensions
W x H x D	4.5cm x 18.8cm x 18.8cm (without stand)

CPU

The R1505G is a dual core four-thread CPU normally clocked at 2.4GHz with boost up to 3.3GHz. However the one incorporated into the M350C is a special that is clocked at 2.0GHz with boost up to 2.7GHz.

From IGEL's literature on the M350C:

...AMD optimized the AMD Ryzen embedded R1505G SoC with Radeon Vega 3 Graphics specifically for the IGEL UD3, offering uniquely efficient operation and performance...

To conserve energy consumption, IGEL took this extra step with AMD to ensure consistently low power usage on the UD3. The IGEL AMD SoC variant runs on a lower thermal design power (TDP) of 10 watts at 2.0GHz up to 2.7GHz boost frequency as opposed to the standard 12-15 watts while maintaining its maximum performance, reducing energy costs and environmental impact

PCI

00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15d0
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1452
00:01.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 145d
00:01.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 145d
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1452
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 15db
00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 15dc
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 61)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15e8
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15e9
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15ea
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15eb
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15ec
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15ed
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15ee
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15ef
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
02:00.0 Network controller: Intel Corporation Device 2526 (rev 29)
03:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Device 15d8 (rev 92)
03:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Device 15de
03:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Device 15df
03:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15e5
03:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD] Device 15e2
03:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Device 15e3
03:00.7 Non-VGA unclassified device: Advanced Micro Devices, Inc. [AMD] Device 15e6
04:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 61)

Power Supply

The IGEL M350C uses an external 12V supply with a conventional 5.5mm/2.5mm coaxial connector. The M350C data sheet gives its power consumption as 5.45W when idle and 0.6W in sleep mode.

Expansion

Flash: The flash memory is 8GB of eMMC soldered to the board.

The board is tracked for a mSATA socket that mounts the mSATA board above the NGFF wireless card. It looks to me that the capacitors in the data lines are already fitted should you wish to test your soldering skills by adding the mSATA socket.

RAM: There are two onboard sockets for DDR4 2400MHz SODIMMs for the RAM. Mine came fitted with two Transcend parts (TSIT4DDR4S-002G). I replaced them with two 8GB SK Hynix parts (HMA81GS6AFR8N-UH) and had 16GB available.

The photo shows that the board is tracked for an mSATA socket which, if fitted, mounts the mSATA board above the wireless card. The previous photo shows a mSATA socket fitted by Krystian to his M350C.