IGEL H820C: Model 

• Hardware
• Disassembly
• Firmware
• Linux

As thin clients go the Igel H820C is on the large size as it incorporates space for a half-length PCIe expansion card to be fitted. I believe it was launched in 2013. It reached EOL in January 2015 and EOM in 2016 although some variants were supported until 2018.

Specifications

The basic specs are:

Processor
Type    Speed	Intel Celeron 847 1.1GHz
Memory
Flash    RAM	2GB/4GB/8GB 1GB/2GB (max 8GB)
Video
Chip    Max resolution	Intel HD Graphics 1920x1200 (DVI-I) 2560x1600 (DisplayPort)
Ports
Video    Network    USB    Serial    Parallel    PS/2	DVI-I & Display Port 10/100/1000 2 x USB2.0 front 2 x USB2.0 (rear) 2 x USB3.0 rear 2 Optional (connectivity foot) Kybd
Power
Supply    Plug    Off    Idle    Running	12V 4A (label) Coax 5.5mm/2.1mm 0W 5W 7W
Dimensions
W x H x D	104mm x 272mm x 245mm (without stand)

The UD5 H820C runs either Igel Linux(LX), Microsoft Windows 7 (W7 or W7+)

Power Supply

The IGEL H820C uses an external 12V supply with a conventional 5.5mm/2.1mm coaxial type connector. The supplied PSU was rated at 4A which matches the label on the base of the H820C.

CPU

The H820C is fitted with an Intel Celeron 847 dual core CPU. From the /proc/cpuinfo data:

vendor_id	:	GenuineIntel
cpu family	:	6
model	:	42
model name	:	Intel(R) Celeron(R) CPU 847 @ 1.10GHz
stepping	:	7
flags	:	fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer xsave lahf_lm epb pti xsaveopt dtherm arat pln pts
address sizes	:	36 bits physical, 48 bits virtual

PCI

00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 7 Series/C216 Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series/C216 Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series/C216 Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 7 Series/C216 Chipset Family PCI Express Root Port 1 (rev c4)
00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 (rev c4)
00:1c.2 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 3 (rev c4)
00:1c.3 PCI bridge: Intel Corporation 7 Series/C216 Chipset Family PCI Express Root Port 4 (rev c4)
00:1d.0 USB controller: Intel Corporation 7 Series/C216 Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation 7 Series Chipset Family LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series/C216 Chipset Family SMBus Controller (rev 04)
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 07)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 03)
04:00.0 USB controller: ASMedia Technology Inc. ASM1042 SuperSpeed USB Host Controller

Expansion

Click on the photo for a larger image.

Flash: The flash memory is easily replaceable. It is a vertical SATA DOM (top left in the photograph). The installed part, a Transcend TS2GSSD25H-S, is 40mm high. Anything higher than this will foul the case prevent you refitting the case sleeve.

RAM: The RAM is a single DDR3 1066 SO-DIMM. The fitted RAM was a 1GB 1Rx8 DDR3 1066 part from Transcend (66194-5352). The Igel datasheet says DDR3-1333 up to 4GB - but that is just what they ship. An ASint DDRIII 4GB-1333 part worked as did a Crucial DDR3L part. I also tried out a Crucial 8GB part that worked.

PCIe: There is a PCIe socket on the board plus right-angled riser so that a PCI expansion card (1x) can fitted within the H820C's case. This is only a x1 socket and looks like it will accept full height, half length cards.

mPCIe: There is an mPCIe socket on the board by the RAM and is laid out for half height (26.8mm) cards. Conventionally these are for fitting WLAN cards. I tried out a Broadcom BCM94313HMG2L WLAN card which was duly found and appeared in the lspci listing:

01:00.0 Network controller: Broadcom Limited BCM4313 802.11bgn Wireless Network Adapter (rev 01)

Serial Ports: There are two serial ports. There are two 5-pin header fields adjacent to the connectors. These let you select various voltages(?) for the interface. There is some silk-screen printing providing guidance but this is on the edge of the board under the ribbon cables that run to the backpanel sockets and is almost impossible to read.

USB Ports: There are 2 x USB 2.0 ports on the front panel, 2 x USB 2.0 ports on the rear panel and 2 x USB 3.0 ports on the rear panel.

I found the two USB ports on the front panel to be a little 'iffy'. I think the problem lay with he sockets themselves rather than their connection to the motherboard.

Additional Photos

The vertical SATA DOM.