ASRock Industrial IMB-1234 User manual

IMB-1234
User Manual
Version 1.0
Published February 1, 2023
Copyright©2023 ASRockInd INC. All rights reserved.

Copyright Notice:
No part of this documentation may be reproduced, transcribed, transmitted, or
translated in any language, in any form or by any means, except duplication of
documentation by the purchaser for backup purpose, without written consent of
ASRockInd Inc.
Products and corporate names appearing in this documentation may or may not
be registered trademarks or copyrights of their respective companies, and are used
only for identication or explanation and to the owners’ benet, without intent to
infringe.
Disclaimer:
Specications and information contained in this documentation are furnished for
informational use only and subject to change without notice, and should not be
constructed as a commitment by ASRockInd. ASRockInd assumes no responsibility
for any errors or omissions that may appear in this documentation.
With respect to the contents of this documentation, ASRockInd does not provide
warranty of any kind, either expressed or implied, including but not limited to
the implied warranties or conditions of merchantability or tness for a particular
purpose.
In no event shall ASRockInd, its directors, ocers, employees, or agents be liable
for any indirect, special, incidental, or consequential damages (including damages
for loss of prots, loss of business, loss of data, interruption of business and the
like), even if ASRockInd has been advised of the possibility of such damages arising
from any defect or error in the documentation or product.
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions:
1. this device may not cause harmful interference, and
2. this device must accept any interference received, including interference that
may cause undesired operation.
CALIFORNIA, USA ONLY
The Lithium battery adopted on this motherboard contains Perchlorate, a toxic
substance controlled in Perchlorate Best Management Practices (BMP) regulations
passed by the California Legislature. When you discard the Lithium battery in
California, USA, please follow the related regulations in advance.
“Perchlorate Material-special handling may apply, see www.dtsc.ca.gov/
hazardouswaste/perchlorate”
ASRockInd Website: http://www.asrockind.com

e terms HDMI®and HDMI High-Denition Multimedia Interface, and the HDMI
logo are trademarks or registered trademarks of HDMI Licensing LLC in the United
States and other countries.
CAUTION:
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE.
DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS.

Contents
Chapter 1 Introduction 1
1.1 Package Contents 1
1.2 Specications 2
1.3 Motherboard Layout 5
1.4 I/O Panel 7
Chapter 2 Installation 8
2.1 Screw Holes 8
2.2 Pre-installation Precautions 8
2.3 Installation of Memory Modules 9
2.4 Expansion Slots 10
2.5 Jumpers Setup 11
Chapter 3 UEFI SETUP UTILITY 20
3.1 Introduction 20
3.1.1 Entering BIOS Setup 20
3.1.2 UEFI Menu Bar 21
3.1.3 Navigation Keys 22
3.2 Main Screen 23
3.3 Advanced Screen 24
3.3.1 CPU Conguration 25
3.3.2 Chipset Conguration 27
3.3.3 Storage Conguration 29
3.3.4 Super IO Conguration 31
3.3.5 AMT Conguration 33
3.3.6 ACPI Conguration 35
3.3.7 USB Conguration 36
3.3.8 Trusted Computing 37
3.4 Hardware Health Event Monitoring Screen 39
3.5 Security Screen 40
3.6 Boot Screen 41
3.7 Exit Screen 43

1
IMB-1234
Chapter 1 Introduction
Thank you for purchasing ASRockInd IMB-1234 motherboard, a reliable mother-
board produced under ASRockInd’s consistently stringent quality control. It delivers
excellent performance with robust design conforming to ASRockInd’s commitment to
quality and endurance.
In this manual, chapter 1 and 2 contain introduction of the motherboard and step-by-
step guide to the hardware installation. Chapter 3 contains the conguration guide to
BIOS setup.
Because the motherboard specications and the BIOS soware might be updated, the
content of this manual will be subject to change without notice. In case any modica-
tions of this manual occur, the updated version will be available on ASRockInd website
without further notice. You may nd the latest CPU support lists on ASRockIndind
website as well.
ASRockIndind website https://www.asrockind.com/
If you require technical support related to this motherboard, please visit our website for
specic information about the model you are using.
https://www.asrockind.com/support/index.asp
1.1 Package Contents
ASRockInd IMB-1234 Motherboard (Mini-ITX (6.7-in x 6.7-in x 1.5-in, 17.0 cm x
17.0 cm x 3.8 cm))
ASRockInd IMB-1234 Jumper Setting Instruction

2
1.2 Specications
Form Factor Dimensions Mini-ITX (6.7-in x 6.7-in x 1.5-in, 17.0 cm x 17.0 cm
x 3.8 cm)
Processor
System
CPU
Intel® 12th Gen Alder Lake-P Processors
IMB-1234P (i7-1265UE, 2P+8E)
IMB-1234M (i5-1245UE, 2P+8E)
IMB-1234V (i3-1215UE, 2P+4E)
Chipset MCP
BIOS AMI SPI 256 Mbit
Expansion
Slot
M.2
1 x M.2 (Key B, 3042/3052) with PCIex1, USB 3.2,
USB 2.0 and SIM ofr 4G/5G
1 x M.2 (Key E, 2230) with PCIe, USB 2.0 and CNVi
for Wireless
SIM Socket 1x SIM socket connected to M.2 key B
Memory
Technology Dual Channel DDR4 3200 MHz
Capacity 64GB (32GB per DIMM)
Socket 2 x 260 SO-DIMM
Graphics
Controller Intel® Iris® Xe Graphics
HDMI 2 x HDMI 2.0b
Max resolution up to 4096 x 2160@60Hz
LVDS Dual channel 24 bit up to 1920 x 1200@60Hz
eDP eDP 1.4b
Max resolution up to 4096 x 2160@60Hz
DisplayPort 2 x DisplayPort 1.4a
Max resolution up to 4096 x 2160@60Hz
MultiDisplay Quad display (Included 2 outputs from Type-C)
Audio Interface Realtek ALC897 HD, High Denition Audio
Ethernet
Controller/
Speed
IMB-1234P/IMB-1234M
LAN1: Intel® I225LM with 10/100/1000/2500 Mbps,
supports AMT/vPro
LAN2: Intel® I225LM with 10/100/1000/2500 Mbps
IMB-1234V
LAN1: Intel® I225LM with 10/100/1000/2500 Mbps
LAN2: Intel® I225LM with 10/100/1000/2500 Mbps
Controller 2 x RJ-45

3
IMB-1234
Rear I/O
HDMI 2 x HDMI 2.0
Ethernet 2 x 2.5 Gigabit LAN
USB
2 x USB 2.0
2 x USB 3.2 Gen2
2 x USB 3.2 Gen2 (Type-C, Support DP1.4a
display output)
* USB4™ Compliance Test is pending for
certication.
* For underbolt support, please refer to
support list.
Audio 2 (Mic-In/Line-Out)
DC Jack 1 DC-in
Internal
Connector
USB 1 x USB 3.2 Gen1 and 2 x USB 2.0 (1 x USB 3.2
header)
COM COM1, COM2 (RS-232/422/485)
COM3, COM4, COM5, COM6 (RS-232)
GPIO 4 x GPI, 4 x GPO
TPM TPM 2.0 onboard IC
LVDS 1
eDP 1
SATA PWR
Output 1
Speaker
Header 1
Storage
M.2 1 x M.2 (Key M, 2242/2260/2280) with PCIe
Gen4 x4 for SSD
SATA 2 x SATA3 (6Gb/s)
RAID
Intel® VMD RAID 0/1
**supported by identical interface (PCIE or
SATA)
PCIE interface: M.2 Key B+ M.2 Key M
SATA interface: 2 x SATA port
Watchdog
Timer
Output From Super I/O to drag RESETCON#
Interval 256 Segments, 0, 1, 2, ...255 Sec
Power
Requirements
Input PWR 12V~28V DC-in with Lockable DC Jack
Power On
AT/ATX Supported
-AT: Directly PWR on as power input ready
-ATX: Press button to PWR on aer power input
ready

4
Environment
Operating
Temp 0ºC - 60ºC
Storage Temp -40ºC - 85ºC
Operating
Humidity 5% - 90%
Storage
Humidity 5% - 90%

5
IMB-1234
1.3 Motherboard Layout
33
Industrial
IMB-1234
Mic In
1
HD_AUDIO1
Line Out
DC_4PIN1
SATA3_1 SATA3_0
SPDIF1
1
SATA_PWR1
1
HDLED RESET
PLED PWRBTN
PANEL1
1
DDR4_B1
DDR4_A1
BAT1
1
CPU_FAN1
DC_JACK1
HDMI1
HDMI2
USB3_3
1
BLT_VOL1
1
BKT_PWR1
LVDS1
1
COM4
1
JGPIO_PWR1
JGPIO1
1
SMB_ TEST1
USB 2.0
T: USB2_3
B: USB2_4
M2_B1
DACC1
1
ESPI1
RoHS
M2_E1
M2_M1
BLT_PWM1
1
BIOS
ROM
SIM1
BUZZ1
1
COM5
1
COM6
1
COM1
1
COM2
1
COM3
1
111
PWR_COM4 PWR_COM5 PWR_COM6
111
PWR_COM1 PWR_COM2 PWR_COM3
1
JGPIO_SET1
PSON#_1
11
1
1
SIO_AT1
CI1
1
BUZZ2
CI2
1
CLRMOS1
1
PNL_PWR1
1
EDP_BLT_PWR1
1
BLT_PWR1
1
LAN1
LAN2
USB 3.2 Gen2
T: USB3_1
B: USB3_2
Thunderbolt
Type-C
(TC_T1)
Thunderbolt
Type-C
(TC_T0)
SPEAKER1
1
9
8 (*Backside: EDP1)
7
5
12346
12
10
11
14
13
15
18
19
2425
26
28
31 30 29 27 21
23 22 20
16
32
17
BLT_PWM2
1
1

6
1 : 4-pin ATX 12V PWR Connector
2 : USB 3.2 Gen1 Header (USB3_3)
3 : CPU FAN Connector (+12V)
4 : SATA3 Connectors (SATA3_0, SATA3_1)
5 : SATA Power Output Connector
6 : Brightness Control Mode (BLT_PWM2)
7 : Brightness Control Mode (BLT_PWM1)
8 : LVDS Panel Connector*
* eDP Connector (on the Backside of PCB)
9 : Backlight Volume Control (BLT_VOL1)
10 : Inverter Power Control Wafer (BLT_PWR1)
11 : eDP Inverter Power Control Wafer (EDP_BLT_PWR1)
12 : Backlight Power Select (LCD_BLT_VCC) (BKT_PWR1)
13 : Panel Power Select (LCD_VCC) (PNL_PWR1)
14 : Clear CMOS Jumper (CLRMOS1)
15 : COM Port Headers (COM1~6)
16 : System Panel Header
17 : SMB_TEST1
18 : COM Port PWR Setting Jumpers
PWR_COM1~6 (For COM Port1~6)
19 : Digital Input / Output Default Value Setting (JGPIO_SET1)
20 : Digital Input / Output Pin Header (JGPIO1)
21 : Digital Input / Output Power Select (JGPIO_PWR1)
22 : DACC1
23 : PSON#_1
24 : ATX/AT Mode Jumper (SIO_AT1)
25 : Chassis Intrusion Headers (CI1, CI2)
26 : ESPI Header (ESPI1)
27 : Buzzer (BUZZ2)
28 : Buzzer (BUZZ1)
29 : SIM Socket (SIM1)
30 : Battery Connector
31 : Front Panel Audio Header
32 : 3W Audio AMP Output Wafer (SPEAKER1)
33 : SPDIF Header

7
IMB-1234
1.4 I/O Panel
1 DC Jack (DC_JACK1)
2 underbolt Type-C Port (TC_T1)
3 underbolt Type-C Port (TC_T0)
4 HDMI Port (HDMI1)
5 USB 3.2 Gen2 Port (USB3_1)
6 RJ45 LAN Port (LAN1)(Supports vPro)*
7 RJ45 LAN Port (LAN2)
8 USB 2.0 Port (USB2_3)
9 Audio Jack: Green - Line Out
10 Audio Jack: Pink - Mic In
11 USB 2.0 Port (USB2_4)
12 USB 3.2 Gen2 Port (USB3_2)
13 HDMI Port (HDMI2)
15
234678910
13 12 11
ACT/LINK
LED
SPEED
LED
LAN1 Port
Status Description
O 10Mbps connection
Orange 100Mbps/1Gbps connection
Green 2.5Gbps connection
Activity/Link LED SPEED LED
Status Description
O No Link
Blinking Data Activity
On Link
* ere are two LED next to the LAN port. Please refer to the table below for the LAN port
LED indications.
LAN1 Port LED Indications

8
Chapter 2 Installation
is is a Mini-ITX (6.7-in x 6.7-in x 1.5-in, 17.0 cm x 17.0 cm x 3.8 cm) form factor
motherboard. Before you install the motherboard, study the configuration of your
chassis to ensure that the motherboard ts into it.
2.1 Screw Holes
Place screws into the holes to secure the motherboard to the chassis.
2.2 Pre-installation Precautions
Take note of the following precautions before you install motherboard components or
change any motherboard settings.
1. Unplug the power cord from the wall socket before touching any component.
2. To avoid damaging the motherboard components due to static electricity, NEV-
ER place your motherboard directly on the carpet or the like. Also remember to
use a grounded wrist strap or touch a safety grounded object before you handle
components.
3. Hold components by the edges and do not touch the ICs.
4. Whenever you uninstall any component, place it on a grounded antistatic pad or
in the bag that comes with the component.
5. Heatsink (e thermal solution of whole system needs to be designed addition-
ally.)
Make sure to unplug the power cord before installing or removing the motherboard. Failure to
do so may cause physical injuries to you and damages to motherboard components.
Do not over-tighten the screws! Doing so may damage the motherboard.
Before you install or remove any component, ensure that the power is switched o or the
power cord is detached from the power supply. Failure to do so may cause severe damage to
the motherboard, peripherals, and/or components.

9
IMB-1234
2.3 Installation of Memory Modules
IMB-1234 provides two 260-pin DDR4 (Double Data Rate 4) SO-DIMM slots, and
supports Dual Channel Memory Technology.
Step 1. Align a SO-DIMM on the slot such that the notch on the SO-DIMM
matches the break on the slot.
Step 2. Firmly insert the SO-DIMM into the slot until the retaining clips at both
ends fully snap back in place and the SO-DIMM is properly seated.
1. e SO-DIMM only ts in one correct orientation. It will cause permanent damage to
the motherboard and the SO-DIMM if you force the SO-DIMM into the slot at incor-
rect orientation.
2. Please do not intermix dierent voltage SO-DIMMs on this motherboard.

10
2.4 Expansion Slots
ere are 3 M.2 sockets and 1 SIM socket on this motherboard.
M.2 sockets: 1 x M.2 (Key B, 3042/3052) with PCIex1, USB 3.2, USB 2.0 and SIM for
4G/5G
1 x M.2 (Key E, 2230) with PCIe, USB 2.0 and CNVi for Wireless
1 x M.2 (Key M, 2242/2260/2280) with PCIe Gen4 x4 for SSD
SIM Socket: 1x SIM socket connected to M.2 key B
M.2 Key-E Socket
(M2_E1)
PIN SIGNAL SIGNAL PIN
1 GND +3.3V 2
3 GND +3.3V 4
5 PERn3 NA 6
7 PERp3 NA 8
9 GND SATA_LED 10
11 PETn 3 +3.3V 12
13 PETp3 +3.3V 14
15 GND +3.3V 16
17 PERn2 +3.3V 18
19 PERp2 NA 20
21 GND NA 22
23 PETn 2 NA 24
25 PETp2 NA 26
27 GND NA 28
29 PERn1 NA 30
31 PERp1 NA 32
33 GND NA 34
35 PETn 1 NA 36
37 PETp1 NA 38
39 GND NA 40
41 PERn0 NA 42
43 PERp0 NA 44
45 GND NA 46
47 PETn 0 NA 48
49 PETp0 PERST# 50
51 GND CLKREQ# 52
53 PEFCLKn WAKE# 54
55 PEFCLKp NA 56
57 GND NA 58
67 NA NA 68
69 PEDET +3.3V 70
71 GND +3.3V 72
73 GND +3.3V 74
75 GND
M.2 Key-M Socket
(M2_M1)
M.2 Key-B Socket
(M2_B1)
PIN SIGNAL SIGNAL PIN
1 GND +3.3V 2
3 USB_D+ +3.3V 4
5 USB_D- NA 6
7 GND NA 8
9 CNV_WGR_D1- CNV_RF_RESET 10
11 CNV_WGR_D1+ NA 12
13 GND MODEM_CLKREQ 14
15 CNV_WGR_D0- NA 16
17 CNV_WGR_D0+ GND 18
19 GND NA 20
21 CNV_WGR_CLK- CNV_BRI_RSP 22
23 CNV_WGR_CLK+
33 GND CNV_BGI_DT 32
35 PETp CNV_RGI_RSP 34
37 PETn CNV_BRI_DT 36
39 GND NA 38
41 PERp NA 40
43 PERn NA 42
45 GND NA 44
47 PEFCLKp NA 46
49 PEFCLKn NA 48
51 GND SUSCLK 50
53 CLKREQ# PERST0# 52
55 WAKE# W_DISABLE1# 54
57 GND W_DISABLE2# 56
59 CNV_WT_D1- SMB_DATA 58
61 CNV_WT_D1+ SMB_CLK 60
63 GND NA 62
65 CNV_WT_D0- CLKIN_XTAL_LCP 64
67 CNV_WT_D0+ NA 66
69 GND NA 68
71 CNV_WT_CLK- NA 70
73 CNV_WT_CLK+ +3.3V 72
75 GND +3.3V 74
PIN SIGNAL SIGNAL PIN
1NA +3.3V 2
3 GND +3.3V 4
5 GND FuLL_Card_Power_o 6
7 USB_D+ W_DISABLE1# 8
9 USB_D- WWAN_LED# 10
11 GND
21 GND NA 20
23 NA NA 22
25 NA NA 24
27 GND W_DISABLE2# 26
29 USB3_RX- NA 28
31 USB3_RX+ UIM_RESET 30
33 GND UIM_CLK 32
35 USB3_TX- UIM_DATA 34
37 USB3_TX+ UIM_PWR 36
39 GND NA 38
41 PERn0 NA 40
43 PERP0 NA 42
45 GND NA 44
47 PETn 0 NA 46
49 PETP0 NA 48
51 GND PERST# 50
53 PEFCLKn CLKREQ# 52
55 PEFCLKp WAKE# 54
57 GND NA 56
59 NA NA 58
61 NA NA 60
63 NA NA 62
65 NA NA 64
67 NA NA 66
69 PEDET NA 68
71 GND +3.3V 70
73 GND +3.3V 72
75 NA +3.3V 74

11
IMB-1234
2.5 Jumpers Setup
The illustration shows how jumpers are setup.
When the jumper cap is placed on pins, the
jumper is “Short.” If no jumper cap is placed
on pins, the jumper is “Open.” The illustration
shows a 3-pin jumper whose pin1 and pin2 are
“Short” when jumper cap is placed on these 2
pins.
Jumper Setting Description
Brightness Control Mode 1-2 : +3V (eDP)
(3-pin BLT_PWM2) 2-3 : +5V (LVDS)
(see p. 5, No. 6)
Brightness Control Mode 1-2 : From eDP PWM to
(3-pin BLT_PWM1) CON_LBKLT_CTL
(see p. 5, No. 7) 2-3 : From LVDS PWM to
CON_LBKLT_CTL
Please set to 1-2 when adjusting brightness by Brightness Control bar under OS.
Please set to 2-3 when adjusting brightness by BLT_VOL1.
Clear CMOS Jumpers
(3-pin CLRMOS1)
(see p. 5, No. 14)
NOTE: CLRMOS1 allows you to clear the data in CMOS. To clear and reset the system
parameters to default setup, please turn o the computer and unplug the power cord
from the power supply. Aer waiting for 15 seconds, use a jumper cap to short pin2
and pin3 on CLRMOS1 for 5 seconds. However, please do not clear the CMOS right af-
ter you update the BIOS. If you need to clear the CMOS when you just nish updating
the BIOS, you must boot up the system rst, and then shut it down before you do the
clear-CMOS action. Please be noted that the password, date, time, user default prole
and MAC address will be cleared only if the CMOS battery is removed.
CLRMOS1:
1-2 : Auto Clear CMos
2-3 : Clear CMOS
3
2
1
1 2 3

12
Digital Input / Output Power Select
(5-pin JGPIO_PWR1)
(see p. 5, No. 21)
COM Port PWR Setting Jumpers 1-2 : +5V
(3-pin PWR_COM1~6 (For COM Port1~6)) 2-3 : +12V
(see p. 5,No. 18)
1-2 : +12V
2-3 : +5V
Digital Input / Output Default Value Setting 1-2 : Pull-High
(3-pin JGPIO_SET1)
2-3 : Pull-Low
(see p. 5, No. 19)
DACC1
(2-pin DACC1)
(see p. 5 No. 22)
Auto clear CMOS when system boot improperly.
Open : No ACC
ACC Short : ACC
1
ATX/AT Mode Jumper Open : ATX Mode
(2-pin SIO_AT1)
Short : AT Mode
(see p. 5, No. 24)
1
Chassis Intrusion Jumpers (CI1, CI2)
(2-pin CI1, CI2)
(see p. 4 No. 25)
CI1 :
Open : Normal
Short : Active Case Open
CI2 :
Open : Active Case Open
Short : Normal
Signal GND
1
1 2 3

13
IMB-1234
2.6 Onboard Headers and Connectors
Onboard headers and connectors are NOT jumpers. Do NOT place jumper caps over these
headers and connectors. Placing jumper caps over the headers and connectors will cause per-
manent damage to the motherboard!
CPU Fan Connector (+12V)
(4-pin CPU_FAN1)
(see p. 5, No. 3)
Please connect the CPU fan cable to the connector and match the black wire to the
ground pin.
ough this motherboard provides 4-Pin CPU fan (Quiet Fan) support, the 3-Pin CPU fan
still can work successfully even without the fan speed control function. If you plan to connect
the 3-Pin CPU fan to the CPU fan connector on this motherboard, please connect it to Pin
1-3.
USB 3.2 Gen1 Header
(19-pin USB3_3)
(see p. 5, No. 2)
ere is one USB 3.2 Gen1 header on this motherboard.
1
1
ID
IntA_P_D+
IntA_P_D-
GND
IntA_P_SSTX+
IntA_P_SSTX-
GND
IntA_P_SSRX+
Vbus
IntA_P_D+
IntA_P_D-
GND
IntA_P_SSTX+
IntA_P_SSTX-
GND
IntA_P_SSRX+
IntA_P_SSRX-
Vbus
IntA_P_SSRX-
2
3
4
1
4-pin ATX PWR Connector
(4-pin FROM_UPS1)
(see p. 5, No. 1)
Please connect a DC +12V~28V power supply to this connector.
1-2 : GND
2-3 : DC Input
GND
+12V
CPU_FA
N_SPEED
FA
N_SPEED_CONTROL

14
SATA3 Connectors
(SATA3_0, SATA3_1)
(see p. 5, No. 4)
ese two Serial ATA3 (SATA3) connectors support SATA data cables for internal
storage devices. e current SATA3 interface allows up to 6.0 Gb/s data transfer rate.
SATA3_0 is shared with M2_M1. SATA3_1 is shared with M2_B1.
SATA3_0
SATA3_1
SATA Power Output Connector
(4-pin SATA_PWR1)
(see p. 5, No. 5)
Please connect a SATA power cable to this connector.
GND
+5V
+12V
GND
1
LVDS Panel Connector*
(40-pin LVDS1)
(see p. 5, No. 8)
PIN Signal Name PIN Signal Name
2 LCD_VCC 1 LCD_VCC
4 N/A 3 +3.3V
6 LVDS_A_DATA0# 5 N/A
8 GND 7 LVDS_A_DATA0
10 LVDS_A_DATA1 9 LVDS_A_DATA1#
12 LVDS_A_DATA2# 11 GND
14 GND 13 LVDS_A_DATA2
16 LVDS_A_DATA3 15 LVDS_A_DATA3#
18 LVDS_A_CLK# 17 GND
20 GND 19 LVDS_A_CLK
22 LVDS_B_DATA0 21 LVDS_B_DATA0#
24 LVDS_B_DATA1# 23 GND
26 GND 25 LVDS_B_DATA1
28 LVDS_B_DATA2 27 LVDS_B_DATA2#
30 LVDS_B_DATA3# 29 DPLVDD_EN
32 GND 31 LVDS_B_DATA3
34 LVDS_B_CLK 33 LVDS_B_CLK#
36 CON_LBKLT_EN 35 GND
37 CON_LBKLT_CTL 38 CON_LBKLT_CTL
39 LCD_BLT_VCC 40 LCD_BLT_VCC
2 1
40 39
* PD (Panel Detection):
Connect this pin to LVDS Panel’s Ground pin
to detect Panel detection.
* eDP Connector
(on the Backside of PCB)
(40-pin EDP1)
40
1
EDP1
40
1
EDP1
PIN Signal Name
40 NA
39 LCD_BLT_VCC
38 LCD_BLT_VCC
37 LCD_BLT_VCC
36 LCD_BLT_VCC
35 SMB_CLK_MAIN
34 SMB_DATA_MAIN
33 eDP_BKLTCTL_R
32 eDP_BKLTEN
31 GND
30 GND
29 GND
28 GND
27 eDP_HPD_CON
26 GND
25 GND
24 GND
23 GND
22 NA
21 LCD_VCC
20 LCD_VCC
19 LCD_VCC
18 LCD_VCC
17 GND
16 eDP_AUX#_CON
15 eDP_AUX_CON
14 GND
13 eDP_TX0_CON
12 eDP_TX#0_CON
11 GND
10 eDP_TX1_CON
9 eDP_TX#1_CON
8 GND
7 eDP_TX2_CON
6 eDP_TX#2_CON
5 GND
4 eDP_TX3_CON
3 eDP_TX#3_CON
2 GND
1NA

15
IMB-1234
Backlight Volume Control
(7-pin BLT_VOL1)
(see p. 5, No. 9)
1
PIN Signal Name
7 GND
6 GND
5 BLT_DW
4 BLT_UP
3 PWRDN
2 GPIO_VOL_DW
1 GPIO_VOL_UP
Inverter Power Control Wafer
(6-pin BLT_PWR1)
(see p. 5, No. 10)
PIN Signal Name
6 LCD_BLT_VCC
5 LCD_BLT_VCC
4 CON_LBKLT_EN
3 CON_LBKLT_CTL
2 GND
1 GND
1
eDP Inverter Power Control Wafer
(6-pin EDP_BLT_PWR1)
(see p. 5, No. 11)
PIN Signal Name
6 LCD_BLT_VCC
5 LCD_BLT_VCC
4 CON_LBKLT_EN
3 CON_LBKLT_CTL
2 GND
1 GND
1
Backlight Power Select (LCD_BLT_VCC)
(5-pin BKT_PWR1)
(see p. 5, No. 12)
1-2 : GNDLCD_BLT_VCC : +5V
2-3 : LCD_BLT_VCC : +12V
4-5 : LCD_BLT_VCC : DC_IN
Panel Power Select (LCD_VCC)
(5-pin PNL_PWR1)
(see p. 5, No. 13)
1
1
Use this to set up the VDD power
of the LVDS connector.
1-2 : LCD_VCC +3V
2-3 : LCD_VCC +5V
4-5 : LCD_VCC +12V

16
COM Port Headers
(9-pin COM1~6)
(see p. 5, No. 15)
PIN Signal Name PIN Signal Name PIN Signal Name PIN Signal Name PIN Signal Name
1DDCD# 3TTXD 5GND 7RRTS# 9PWR
2RRXD 4DDTR# 6DDSR# 8CCTS#
1
2
is motherboard supports RS232/422/485 on COM1, 2 ports. Please refer to the table below
for the pin denition. In addition, COM1, 2 ports (RS232/422/485) can be adjusted in BIOS
setup utility > Advanced Screen > Super IO Conguration. You may refer to page 31 for de-
tails.
COM1, 2 Ports Pin Denition
PIN RS232 RS422 RS485
1 DCD TX- RTX-
2 RXD RX+ N/A
3 TXD TX+ RTX+
4DTR RX- N/A
5 GND GND GND
6DSR N/A N/A
7RTS N/A N/A
8 CTS N/A N/A
9 PWR PWR PWR
System Panel Header
(9-pin PANEL1)
(see p. 5, No. 16)
is header accommodates several system front panel functions.
Connect the power switch, reset switch and system status indicator on the chassis to this
header according to the pin assignments below. Note the positive and negative pins before
connecting the cables.
PWRBTN (Power Switch):
Connect to the power switch on the chassis front panel. You may congure the way to turn
o your system using the power switch.
RESET (Reset Switch):
Connect to the reset switch on the chassis front panel. Press the reset switch to restart the
computer if the computer freezes and fails to perform a normal restart.