IEI Technology IMBA-H420 User manual

ATX Motherboard Supports 10th/11th Gen. LGA1200 Intel® Core™
i9/i7/i5/i3, Celeron® and Pentium® Processors, DDR4, Triple
Independent Display, 2.5GbE, USB 3.2, SATA 6Gb/s,
HD Audio and RoHS
IMBA-H420
Quick Installation Guide
Version 1.0
March 8, 2022
Package List
IMBA-H420 package includes the following items:
 1 x IMBA-H420 single board computer
 2 x SATA cable
 1 x I/O shielding
 1 x QIG
©2022 Copyright by IEI Integration Corp.
All rights reserved.

2
Specifications
 CPU:
10th/11th Generation LGA1200 Intel® Core™ i9/i7/i5/i3, Celeron®
and Pentium® processors
 Chipset:
Intel® H420
 Memory:
Two 288-pin 2933 MHz dual-channel unbuffered DDR4 SDRAM
DIMM slots supporting up to 128 GB memory
 BIOS:
AMI UEFI BIOS
 Graphics Engine:
Up to Intel® UHD Graphics 630; Intel® HD Graphics Gen 9
Engines with 16 low-power execution units, supporting DX2015,
OpenGL 5.x, OpenCL2.x and ES 2.0
 Display Output:
1 x VGA (up to 1920 x 1080 @ 60 Hz)
1 x Internal DP++ (up to 4096 x 2304 @ 60 Hz)
1 x HDMI (up to 4096 x 2304 @ 30 Hz)
 Ethernet:
1 x 2.5GbE RJ-45 port via Intel® I225V controller (colay I225-LM)
 External I/O Interface:
1 x RS-232 DB-9
2 x USB 2.0 (Type-A)
4 x USB 3.2 Gen 1 (5Gb/s) (Type-A)
1 x PS/2 keyboard/mouse connector
 Internal I/O Interface:
2 x USB 2.0 (2x4 pin, p=2.54)
4 x RS-232 (2x5 pin, p=2.54)
1 x RS-232/422/485 (2x5 pin, p=2.54)
4 x SATA 6Gb/s (no RAID)

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 Audio:
Realtek ALC888S HD Audio codec supports 7.1-channel
3 x Audio jack (line-in, line-out, mic-in) on rear I/O
1 x Front audio (2x5 pin, p=2.54)
 Front Panel:
1 x Front panel (2x7 pin, p=2.54; power LED, HDD LED, speaker,
power button, reset button)
 LAN LED:
1 x LAN LED (1x2 pin, p=2.0)
 Expansions:
1 x PCIe Gen3 x16 slot
1 x PCIe Gen3 x4 slot
4 x PCI slot
 Digital I/O:
1 x 8-bit digital I/O (2x5 pin, p=2.0)
 SMBus:
1 x SMBus (1x4 pin, p=1.25)
 I
2C:
1 x I2C (1x4 pin, p=1.25)
 Fan Connector:
1 x CPU fan connector (1x4 pin)
2 x System fan connector (1x4 pin)
 Chassis Intrusion:
1 x Chassis intrusion connector (1x2 pin, p=2.54)
 TPM
Intel® PTT (TPM 2.0)
 Power Supply:
ATX/AT power supply
Support AT/ATX mode
ErP/EuP compliant

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 Power Consumption:
[email protected], [email protected], [email protected], 5VSB@0A
(Intel® Core™ i5-10500TE CPU with two 32 GB 2933 MHz DDR4
memory, EuP mode enabled)
 Watchdog Timer:
Software programmable support 1–255 sec. system reset
 Operation Temperature: 0°C – 60°C
 Storage Temperature: -30°C – 70°C
 Operation Humidity: 5% – 95%, non-condensing
 Dimensions: 244 mm x 305 mm
 Weight: GW:1200 g / NW:700 g
 Safety: CE/FCC compliant
All the drivers and utility for the IMBA-
H420 are available on IEI Resource
Download Center. Type IMBA-H420
and press Enter to find all the relevant
software, utilities, and documentation.
To install software from the
downloaded ISO file, mount the file as
a virtual drive to view its content.
IEI Resource Download Center
https://download.ieiworld.com

5
Ordering Information
 IMBA-H420-R10:
ATX Motherboard Supports 10th/11th Gen. LGA1200 Intel® Core™
i9/i7/i5/i3, Celeron® and Pentium® Processors, DDR4, Triple
Independent Display, 2.5GbE, USB 3.2, SATA 6Gb/s, HD Audio and
RoHS
 IMBA-H420-ECO-R10:
ATX Motherboard Supports 10th/11th Gen. LGA1200 Intel® Core™
i9/i7/i5/i3, Celeron® and Pentium® Processors, DDR4, Triple
Independent Display, 2.5GbE, USB 3.2, SATA 6Gb/s, HD Audio,
ECO packing and RoHS
 19800-003100-100-RS:
Dual-port USB cable with bracket, 30mm, p=2.54
 19800-020100-100-RS:
Dual-port RS-232 cable with bracket, 230mm, p=2.54
 32205-000702-200-RS:
RS-232/422/485 cable, 230mm, p=2.54
 32102-000100-200-RS:
SATA power cable, MOLEX 8981-4M to SATA15P, 150mm
 CF-115XA-R10:
High performance LGA1155/1156 cooler kit, 1U chassis compatible,
73W
 CF-1156C-R20:
LGA1155/LGA1156 cooler kit, 1U chassis compatible, 45W
 CF-1156D-R30:
LGA1155/LGA1156 cooler kit, 1U chassis compatible, 65W
 CF-115XE-R10:
High-performance LGA1155/1156 cooler kit, 95W

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Jumpers Setting and Connectors
LABEL FUNCTION
J_ATX_AT1 AT/ATX power mode setting
J_CMOS1 Clear CMOS jumper
J_FLASH1 Flash descriptor security override jumper
FRONT-PANEL1 Internal audio connector
ATX1 ATX power connector
CPU12V1 ATX CPU 12V power connector
BAT1 RTC battery connector
CHASSIS1 Chassis intrusion connector
CHA_DIMM0, CHB_DIMM0 DDR4 DIMM slots
DBG_PORT2 Debug connector
DIO1 Digital I/O connector
DP1 Internal DisplayPort connector
DEBUG_SPI1 EC debug connector
CPU_FAN1, SYS_FAN1,
SYS_FAN2 Fan connectors
F_PANEL1 Front panel connector
I2C1 I2C connector
JP3 LAN1 link LED connector
COM2, COM3, COM4,
COM6 RS-232 serial port connectors
COM5 RS-232/422/485 serial port connector
S_ATA1, S_ATA2,
S_ATA3, S_ATA4 SATA 6Gb/s connectors
SMB1, J_CRTFW1 SMBus connectors
JSPI1 Flash SPI ROM connector
EC_SPI1 Flash EC ROM connector
ATXPWR1 PCIe power connector
USB2 Internal USB 2.0 connector
PCI1, PCI2, PCI3, PCI4 PCI slots
PCIEX4_1 PCIe x4 slot
PCIEX16_1 PCIe x16 slot
PWR_SW1 Onboard power button
AUDIO_CV1 External HD Audio jack

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K/M_USB1 External keyboard/mouse and USB 2.0 combo
connector
LAN1_USB1 External 2.5GbE RJ-45 and dual USB 3.2
Gen 1 combo connector
USB1 External dual USB 3.2 Gen 1 connector
COM1/VGA1 External RS-232 and VGA combo connector
HDMI1 External HDMI connector
J_ATX_AT1: AT/ATX Power Mode Setting
PIN NO. DESCRIPTION
Short 1 - 2 ATX Power Mode (default)
Short 2 - 3 AT Power Mode
J_CMOS1: Clear CMOS Button
Status DESCRIPTION
NC Keep CMOS Setup
(Normal Operation)
Press Clear CMOS Setup
J_FLASH1: Flash Descriptor Security Override Jumper
PIN NO. DESCRIPTION
Short 1-2 Disabled (default)
Short 2-3 Enabled
FRONT-PANEL1: Internal Audio Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 LMIC2-L 2 AUD_GND
3 LMIC2-R 4 PRESENCE#
5 LLINE2-R 6 MIC2-JD
7 FRONT-IO 8 NC
9 LLINE2-L 10 LINE2-JD

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ATX1: ATX Power Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 +3.3V 13 +3.3V
2 +3.3V 14 -12V
3 GND 15 GND
4 +5V 16 PS_ON
5 GND 17 GND
6 +5V 18 GND
7 GND 19 GND
8 Power good 20 -5V
9 5VSB 21 +5V
10 +12V 22 +5V
11 +12V 23 +5V
12 +3.3V 24 GND
CPU12V1: ATX CPU 12V Power Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 GND 5 +12V
2 GND 6 +12V
3 GND 7 +12V
4 GND 8 +12V
BAT1: RTC Battery Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 VBATT 2 GND
CHASSIS1: Chassis Intrusion Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 +3.3VSB 2 CHASSIS_OPEN

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DBG_PORT2: Debug Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 +5V 2 SMBCLK_EC
3 NC 4 SMBDATA_EC
5 GND 6 PLTRST_N
DIO1 : Digital Input/Output Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 GND 2 VCC
3 Output 3 4 Output 2
5 Output 1 6 Output 0
7 Input 3 8 Input 2
9 Input 1 10 Input 0
DP1: Internal DP++ Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 LANE0P 11 GND
2 GND 12 LANE3N
3 LANE0N 13 AUX_CTRL_DET_C
4 LANE1P 14 GND
5 LANE1N 15 AUXP
6 GND 16 GND
7 LANE2P 17 AUXN
8 GND 18 HPD
9 LANE2N 19 GND
10 LANE3P 20 +5V
DEBUG_SPI1: EC Debug Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 NC 4 EDICLK
2 EDICS 5 EDIDI
3 EDIDO 6 GND

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CPU_FAN1: CPU Fan Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 GND 2 +12V
3 FANIO 4 PWM
SYS_FAN1, SYS_FAN2:System Fan Connectors
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 GND 2 +12V
3 FANIO 4 PWM
F_PANEL1: Front Panel Connector
PIN DESCRIPTION PIN DESCRIPTION
PWR
LED
1 PWR_LED+ 2 SPKR+
SPKR
3 NC 4 NC
5 PWR_LED- 6 NC
PWR
BTN
7 PWR_BTN+ 8 SPKR-
9 PWR_BTN- 10 NC
HDD
LED
11 HDD_LED+ 12 Reset+ RESET
13 HDD_LED- 14 Reset-
I2C1: I2C Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 GND 3 I2C_CLK
2 I2C_DATA 4 +5V
JP3: LAN1 Link LED Connector
PIN DESCRIPTION PIN DESCRIPTION
1 +3.3V 2 LAN1_LED_LNK#_ACT