ASRock Industrial 4X4-7735U/D5 Service manual

1 : M.2 Key-M Socket (M2M_1)
2 : M.2 Key-E Socket (M2E_1)
3 : USB2.0 Connector (USB2H_2_3)
Jumpers and Headers Setting Guide
4X4-7735U/D5
4X4-7535U/D5
4 : COM Port Header (RS232/422/485)
5 : Audio Jack (AUDIO1)
6 : USB 4.0 Type-C Port (TC_U4_1)
7 : USB 3.2 Gen2 Ports (USB3_4_5)
8 : SATA3 Port (SATA3_1)
9 : J P1
JP1_12 : SIO AT Mode
JP1_34 : CMOS Normal
JP1_46 : Clear CMOS
The 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.
10 : USB 4.0 Type-C Port (TC_U4_2)
11 : System Panel Header (PANEL1)
12 : DC-In Jack (DC_IN1)
13 : USB 2.0 Ports (USB2_6_7)
14 : Top : DisplayPort (DP2)
Bottom : HDMI Port (HDMI1)
15 : RJ-45 LAN Port (LAN2)
16 :RJ-45 LAN Port (LAN1)
Back Side :
17 : Power Button (PWR_BTN1)
18 : Fan Connector (FAN1)
19 : Battery Connector (BAT1)
20 : ESPI Connector (ESPI1)
* This motherboard supports RS232/422/485 on COM1 port. Please
refer to below table for the pin denition. In addition, COM1 port
(RS232/422/485) can be adjusted in BIOS setup utility > Advanced
Screen > Super IO Conguration. You may refer to our user manual for
details.
PIN RS232 RS422 RS485
1 DCD, Data Carrier Detect TX- RTX-
2 RXD, Receive Data TX+ RTX+
3TXD, Transmit Data RX+ N/A
4 DTR, Data Terminal Ready RX- N/A
5 GND GND GND
6 DSR, Data Set Ready N/A N/A
7 RTS, Request To Send N/A N/A
8 CTS, Clear To Send N/A N/A
9 N/A N/A N/A
COM1 Port Pin Denition
CCTS#1
RRTS#1
DDSR#1
DDTR#1
RRXD1
GND
TTXD1
DDCD#1
1
RRI#1
* Pin6 and Pin8 are dened as USB2.0 signal to support Key-M to
Key-B extension card.
R
ESET#
PWRBTN
#
PLED-
PLED+
GND
HDLED-
HDLED+
1
DUMMY
GND
NC
DUMMY
PIN Signal Name PIN Signal Name
1 GND 2 +3.3V
3 USB_D+ 4 +3.3V
5 USB_D- 6 NA
7 GND 8 NA
9 NA 10 NA
11 NA 12 NA
13 NA 14 NA
15 NA 16 NA
17 NA 18 GND
19 NA 20 NA
21 NA 22 NA
23 NA
33 GND 32 NA
35 PETp 34 NA
37 PETn 36 NA
39 GND 38 NA
41 PERp 40 NA
43 PERn 42 NA
45 GND 44 NA
47 PEFCLKp 46 NA
49 PEFCLKn 48 NA
51 GND 50 SUSCLK
53 CLKREQ# 52 PERST0#
55 WAKE# 54 W_DISABLE1#
57 GND 56 W_DISABLE2#
59 NA 58 SMB_DATA
61 NA 60 SMB_CLK
63 GND 62 NA
65 NA 64 NA
67 NA 66 NA
69 GND 68 NA
71 NA 70 NA
73 NA 72 +3.3V
75 GND 74 +3.3V
PIN Signal Name PIN Signal Name
1 GND 2 +3.3V
3 GND 4 +3.3V
5 PERn3 6 USB_D+
7 PERp3 8 USB_D-
9 GND 10 LED
11 PETn3 12 +3.3V
13 PETp3 14 +3.3V
15 GND 16 +3.3V
17 PERn2 18 +3.3V
19 PERp2 20 NA
21 GND 22 NA
23 PETn2 24 NA
25 PETp2 26 NA
27 GND 28 NA
29 PERn1 30 NA
31 PERp1 32 NA
33 GND 34 NA
35 PETn1 36 NA
37 PETp1 38 DEVSLP
39 GND 40 SMB_CLK
41 PERn0 42 SMB_DATA
43 PERp0 44 NA
45 GND 46 NA
47 PETn0 48 NA
49 PETP0 50 PERST#
51 GND 52 CLKREQ#
53 PEFCLKn 54 WAKE#
55 PEFCLKp 56 NA
57 GND 58 NA
67 NA 68 NA
69 PEDET 70 +3.3V
71 GND 72 +3.3V
73 GND 74 +3.3V
75 GND
Revision History
Date Description
February 6, 2023 First Release
Top: Bottom:
1
FAN_SPEED_CONTROL
FAN_SPEED
+12V
GND
+5V
1
PIN Signal Name
1 GND
2 ESPI_CLK
3 GND
4 ESPI_CS1#
5 ESPI_RESET#
6 GND
7 +3V
8 GND
9 SMB_CLK_MAIN_3V
10 SMB_DATA_MAIN_3V
11 ESPI_DAT0
12 ESPI_DAT1
13 ESPI_DAT2
14 ESPI_DAT3
15 GND
16 +3VSB
17 GPIO_TEST#
18 GND
19 ESPI_ALERT#
20 GND
12
PIN Signal Name
20 GND
19 GND
18 GND
17 NC
16 +5V
15 +5V
14 +5V
13 +5V
12 +5V
11 NC
10 GND
9 GND
8 GND
7R_SATA_RXP0
6R_SATA_RXN0
5 GND
4 GND
3 R_SATA_TXN0
2 R_SATA_TXP0
1 GND

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.