ASRock IMB-1235 Raptor Lake P Industrial User Guide
- May 15, 2024
- ASRock
Table of Contents
ASRock IMB-1235 Raptor Lake P Industrial

Specifications:
- Model: IMB-1235
- Connectors: DC_JACK1, Thunderbolt Type-C (TC_T1), Thunderbolt Type-C (TC_T0), USB 3.2 Gen2, LAN1, LAN2, USB 2.0, Line Out, Mic In, SPDIF1, HD_AUDIO1, CPU_FAN1, SATA3_1, SATA3_0, SATA_PWR1, and more.
- Socket Types: M.2 Key-E Socket (M2_E1), M.2 Key-M Socket (M2_M1), 4-pin ATX PWR Connector (4P_ATX1), M.2 Key-B Socket (M2_B1), USB 3.2 Gen1 Header (USB3_3)
Product Usage Instructions
Jumper and Header Settings:
 Refer to the diagram in the user manual to correctly set the jumpers and
headers on the IMB-1235 board. Ensure proper alignment and connection of each
component for optimal performance.
Connector Usage:
 Connect various devices and peripherals to the corresponding connectors on
the IMB-1235 board. Make sure to match the connectors with the appropriate
devices to establish proper functionality.
M.2 Socket Installation:
 When installing components into the M.2 Key-E Socket (M2_E1), M.2 Key-M
Socket (M2_M1), or M.2 Key-B Socket (M2_B1), ensure correct alignment and
gentle insertion to avoid damage to the sockets or components.
Power Connector Setup:
 For the 4-pin ATX PWR Connector (4P_ATX1), carefully connect the
corresponding power cables to provide sufficient power to the board. Double-
check the connections to prevent power-related issues.
Frequently Asked Questions (FAQ):
- 
Q: How do I know which connector to use for specific devices? 
 A: Refer to the user manual or consult with a technical expert to determine the appropriate connectors for your specific devices based on compatibility and functionality requirements.
- 
Q: What should I do if I encounter power-related issues? 
 A: Check the power connections, ensure proper voltage supply, and inspect for any loose connections or damaged cables. If issues persist, contact customer support for further assistance.
The terms HDMI® and HDMI High-Definition Multimedia Interface, and the HDMI logo are trademarks or registered trademarks of HDMI Licensing LLC in the United States and other countries.
Revision History
| Date | Description | 
|---|---|
| April 12, 2023 | First Release | 
| November 28, 2023 | Second Release | 
| January 29, 2024 | Third Release | 

- 1 : M.2 Key-E Socket (M2_E1)
| 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- | NA | 58 | 
| 61 | CNV_WT_D1+ | NA | 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 | 
- 2 : M.2 Key-M Socket (M2_M1)
| 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 | PETn3 | +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 | PETn2 | NA | 24 | 
| 25 | PETp2 | NA | 26 | 
| 27 | GND | NA | 28 | 
| 29 | PERn1 | NA | 30 | 
| 31 | PERp1 | NA | 32 | 
| 33 | GND | NA | 34 | 
| 35 | PETn1 | NA | 36 | 
| 37 | PETp1 | NA | 38 | 
| 39 | GND | NA | 40 | 
| 41 | PERn0 | NA | 42 | 
| 43 | PERp0 | NA | 44 | 
| 45 | GND | NA | 46 | 
| 47 | PETn0 | 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 | 
- 3 : 4-pin ATX PWR Connector (4P_ATX1)
| Pin | Signal Name | Signal Name | Pin | 
|---|---|---|---|
| 1 | GND | GND | 2 | 
| 3 | DC Input | DC Input | 4 | 
- 4 : M.2 Key-B Socket (M2_B1)
| PIN | SIGNAL | SIGNAL | PIN | 
|---|---|---|---|
| 1 | NA | +3.3V | 2 | 
| 3 | GND | +3.3V | 4 | 
| 5 | GND | FuLL_Card_Power_off | 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 | PETn0 | 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 | 
- 5 : USB 3.2 Gen1 Header (USB3_3)
| Pin | Signal Name | Signal Name | Pin | 
|---|---|---|---|
| 1 | ID | IntA_P_D+ | 2 | 
| 3 | IntA_P_D+ | IntA_P_D- | 4 | 
| 5 | IntA_P_D- | GND | 6 | 
| 7 | GND | IntA_P_SSTX+ | 8 | 
| 9 | IntA_P_SSTX+ | IntA_P_SSTX- | 10 | 
| 11 | IntA_P_SSTX- | GND | 12 | 
| 13 | GND | IntA_P_SSRX+ | 14 | 
| 15 | IntA_P_SSRX+ | IntA_P_SSRX- | 16 | 
| 17 | IntA_P_SSRX- | Vbus | 18 | 
| 19 | Vbus | 
- 6 : CPU FAN Connector (+12V) (CPU_FAN1)
| Pin | Signal Name | 
|---|---|
| 1 | GND | 
| 2 | +12V | 
| 3 | CPU_FAN_SPEED | 
| 4 | FAN_SPEED_CONTROL | 
- 7 : SATA3 Connectors (SATA3_0, SATA3_1)
| Pin | Signal Name | 
|---|---|
| 1 | GND | 
| 2 | SATA-A+ | 
| 3 | SATA-A- | 
| 4 | GND | 
| 5 | SATA-B- | 
| 6 | SATA-B+ | 
| 7 | GND | 
– 8 : SATA Power Output Connector
| Pin | Signal Name | 
|---|---|
| 1 | +5V | 
| 2 | GND | 
| 3 | GND | 
| 4 | +12V | 
- 
9 : Brightness Control Mode (BLT_PWM2) - 1- 2: 3V Level (Default)
- 2- 3: 5V Level
 
- 
10 : Brightness Control Mode (BLT_PWM1) - 1- 2: From eDP PWM to CON_LBKLT_CTL
- 2- 3: From LVDS PWM to CON_LBKLT_CTL (Default)
- 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.
 
- 
*11 : LVDS Panel Connector** 
| Pin | Signal Name | Signal Name | Pin | 
|---|---|---|---|
| 1 | LCD_VCC | LCD_VCC | 2 | 
| 3 | +3.3V | N/A | 4 | 
| 5 | N/A | LVDS_A_DATA0# | 6 | 
| 7 | LVDS_A_DATA0 | GND | 8 | 
| 9 | LVDS_A_DATA1# | LVDS_A_DATA1 | 10 | 
| 11 | GND | LVDS_A_DATA2# | 12 | 
| 13 | LVDS_A_DATA2 | GND | 14 | 
| 15 | LVDS_A_DATA3# | LVDS_A_DATA3 | 16 | 
| 17 | GND | LVDS_A_CLK# | 18 | 
| 19 | LVDS_A_CLK | GND | 20 | 
| 21 | LVDS_B_DATA0# | LVDS_B_DATA0 | 22 | 
| 23 | GND | LVDS_B_DATA1# | 24 | 
| 25 | LVDS_B_DATA1 | GND | 26 | 
| 27 | LVDS_B_DATA2# | LVDS_B_DATA2 | 28 | 
| 29 | DPLVDD_EN | LVDS_B_DATA3# | 30 | 
| 31 | LVDS_B_DATA3 | GND | 32 | 
| 33 | LVDS_B_CLK# | LVDS_B_CLK | 34 | 
| 35 | GND | CON_LBKLT_EN | 36 | 
| 37 | CON_LBKLT_CTL | LCD_BLT_VCC | 38 | 
| 39 | LCD_BLT_VCC | LCD_BLT_VCC | 40 | 
- 
PD (Panel Detection): Connect this pin to LVDS Panel’s Ground pin to detect Panel detection. 
- 
eDP Connector (EDP1) (on the Backside of PCB) 
| 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 | 
| 1 | NA | 
- 12 : Backlight Volume Control (BLT_VOL1)
| Pin | Signal Name | 
|---|---|
| 1 | GPIO_VOL_UP | 
| 2 | GPIO_VOL_DW | 
| 3 | PWRDN | 
| 4 | BLT_UP | 
| 5 | BLT_DW | 
| 6 | GND | 
| 7 | GND | 
- 13 : Inverter Power Control Wafer (BLT_PWR1)
| Pin | Signal Name | 
|---|---|
| 1 | GND | 
| 2 | GND | 
| 3 | CON_LBKLT_CTL | 
| 4 | CON_LBKLT_EN | 
| 5 | LCD_BLT_VCC | 
| 6 | LCD_BLT_VCC | 
- 14 : eDP Inverter Power Control Wafer (EDP_BLT_PWR1)
| Pin | Signal Name | 
|---|---|
| 1 | GND | 
| 2 | GND | 
| 3 | CON_LBKLT_CTL | 
| 4 | CON_LBKLT_EN | 
| 5 | LCD_BLT_VCC | 
| 6 | LCD_BLT_VCC | 
- 15 : Backlight Power Select (LCD_BLT_VCC) (BKT_PWR1)- 1- 2: LCD_BLT_VCC: +5V (Default)
- 2- 3: LCD_BLT_VCC: +12V
- 4-5: LCD_BLT_VCC: DC_IN
 

- 
16 : Panel Power Select (LCD_VCC) (PNL_PWR1) - 1- 2: LCD_VCC: +3V (Default)
- 2- 3: LCD_VCC: +5V
- 4-5: LCD_VCC: +12V
 
- 
17 : Clear CMOS Header (CLRMOS1) - 1- 2: Auto Clear CMOS (Default)
- 2- 3: Clear CMOS
 
- 
18 : COM Port Headers (COM1~6) 
| Pin | Signal Name | Signal Name | Pin | 
|---|---|---|---|
| 1 | DDCD# | RRXD | 2 | 
| 3 | TTXD | DDTR# | 4 | 
| 5 | GND | DDSR# | 6 | 
| 7 | RRTS# | CCTS# | 8 | 
| 9 | PWR | 10 | 
- This motherboard supports RS232/422/485 on COM1, 2 ports.
Please refer to table below for the pin definition. In addition, COM1, 2 ports (RS232/422/485) can be adjusted in BIOS setup utility > Advanced Screen > Super IO Configuration. You may refer to our user manual for details.
COM1, 2 Port Pin Definition
| Pin | RS232 | RS422 | RS485 | 
|---|---|---|---|
| 1 | DCD | TX- | RTX- | 
| 2 | RXD | TX+ | RTX+ | 
| 3 | TXD | RX+ | N/A | 
| 4 | DTR | RX- | N/A | 
| 5 | GND | GND | GND | 
| 6 | DSR | N/A | N/A | 
| 7 | RTS | N/A | N/A | 
| 8 | CTS | N/A | N/A | 
| 9 | PWR | PWR | PWR | 
- 19 : System Panel Header (PANEL1)
| Pin | Signal Name | Signal Name | Pin | 
|---|---|---|---|
| 1 | HDLED+ | PLED+ | 2 | 
| 3 | HDLED- | PLED- | 4 | 
| 5 | GND | PWRBTN# | 6 | 
| 7 | RESET# | GND | 8 | 
| 9 | GND | 10 | 
- 20 : SMB_TEST1
| Pin | Signal Name | 
|---|---|
| 1 | GPIO | 
| 2 | SMB_CLK_MAIN | 
| 3 | SMB_DATA_MAIN | 
| 4 | GND | 
| 5 | Time SYNC | 
- 
21 : COM Port PWR Setting Jumpers PWR_COM1~6 (For COM Port1~6) - 1- 2: +5V (Default)
- 2- 3: +12V
 
- 
22 : Digital Input / Output Default Value Setting (JGPIO_SET1) - 1- 2: Pull-High (Default)
- 2- 3: Pull-Low
 
- 
23 : Digital Input/Output Pin Header (JGPIO1) 
| Pin | Signal Name | Signal Name | Pin | 
|---|---|---|---|
| 1 | SIO_GP71 | GPP_D4 | 2 | 
| 3 | SIO_GP72 | GPP_E1 | 4 | 
| 5 | SIO_GP73 | GPP_E2 | 6 | 
| 7 | SIO_GP74 | GPP_E13 | 8 | 
| 9 | JGPIOPWR | GND | 10 | 
- 
24 : Digital Input / Output Power Select (JGPIO_PWR1) - 1- 2: +12V
- 2- 3: +5V (Default)
 
- 
25 : DACC Header (DACC1) - Open: No ACC
- Short: ACC (Default)
- Auto clear CMOS when system boot improperly.
 
- 
26 : PCIE_ISOLATION1 
| Pin | Signal Name | 
|---|---|
| 1 | PSON# | 
| 2 | GND | 
- 
Connect to PCIE_ISOLATION_1 header on VGA-PWR card. 
- 
27 : ATX/AT Mode Jumper (SIO_AT1) - Open: ATX Mode (Default)
- Short: AT Mode
 
- 
28 : Chassis Intrusion Headers (CI1, CI2) 
CI1:
- Open: Normal (Default)
- Short: Active Case Open
CI2:
- 
Open: Active Case Open 
- 
Short: Normal (Default) 
- 
29 : ESPI Header (ESPI1) 
| Pin | Signal Name | 
|---|---|
| 1 | GND | 
| 2 | ESPI_CLK | 
| 3 | GND | 
| 4 | ESPI_CS# | 
| 5 | ESPI_RESET# | 
| 6 | GND | 
| 7 | +3V | 
| 8 | GND | 
| 9 | SMB_CLK | 
| 10 | SMB_DATA | 
| 11 | ESPI_IO0 | 
| 12 | ESPI_IO1 | 
| 13 | ESPI_IO2 | 
| 14 | ESPI_IO3 | 
| 15 | GND | 
| 16 | +3VSB | 
| 17 | Internal Use | 
| 18 | Internal Use | 
| 19 | ESPI_ALERT# | 
| 20 | GND | 
- 30 : Buzzer Header (BUZZ2)
| Pin | Signal Name | 
|---|---|
| 1 | +5V | 
| 2 | BUZZ_LOW | 
- 31 : Buzzer (BUZZ1)
- 32 : SIM Socket (SIM1)
- 33 : Battery Connector (BAT1)
| Pin | Signal Name | 
|---|---|
| 1 | +BAT | 
| 2 | GND | 
- 34 : Front Panel Audio Header (HD_AUDIO1)
| Pin | Signal Name | Signal Name | Pin | 
|---|---|---|---|
| 1 | MIC1_L | GND | 2 | 
| 3 | MIC1_R | 4 | |
| 5 | OUT2_R | MIC_RET | 6 | 
| 7 | J_SENSE | 8 | |
| 9 | OUT2_L | OUT_RET | 10 | 
- 35 : 3W Audio AMP Output Wafer (SPEAKER1)
| Pin | Signal Name | 
|---|---|
| 1 | OUTLN | 
| 2 | OUTLP | 
| 3 | OUTRP | 
| 4 | OUTRN | 
- 36 : SPDIF Header (SPDIF1)
| Pin | Signal Name | 
|---|---|
| 1 | +5V | 
| 2 | |
| 3 | SPDIF OUT | 
| 4 | GND | 
- 
37 : Audio Jack: Pink – Mic In 
- 
38 : Audio Jack: Green – Line Out 
- 
39 : USB 2.0 Ports (USB2_3_4) 
- 
40 : RJ45 LAN Port (LAN2) 
- 
41 : RJ45 LAN Port (LAN1) 
- 
42 : USB 3.2 Gen2 Ports (USB3_1_2) 
 
- 
43 : Top: HDMI Port (HDMI1) 
 Bottom: HDMI Port (HDMI2)
- 
44 : Thunderbolt Type-C Port (TC_T0) 
 
- 
45 : Thunderbolt Type-C Port (TC_T1) 
 
- 
46 : DC Jack (DC_JACK1) 
Installation of ROM Socket

- 
Do not apply force to the actuator cover after ic inserted. 
- 
Do not apply force to actuator cover when it is opening over 120 degree, Otherwise, the actuator cover may be broken. 
- 
The yellow dot (Pin1) on the ROM must be installed at pin1 position of the socket (white arrow area). 
- 
Make sure the white dot on the ROM is installed outwards of the socket. 
- 
For further details of how to install ROM, please refer to ASRI website. Warning: If the installation does not follow as the picture, then it may cause severe damage to chipset & MB. 
Read User Manual Online (PDF format)
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