ASRock 4X4-7735U/D5 Jumpers and Headers User Guide

: June 9, 2024
: ASRock

Table of Contents

4X4-7735U/D5 Jumpers and Headers
Installation of ROM Socket
Read User Manual Online (PDF format)
Download This Manual (PDF format)

4X4-7735U/D5 4X4-7535U/D5
Jumpers and Headers Setting Guide

4X4-7735U/D5 Jumpers and Headers

1 : M.2 Key-M Socket (M2M_1)

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

Pin6 and Pin8 are defined as USB2.0 signal to support Key-M to Key-B extension card.
2 : M.2 Key-E Socket (M2E_1)

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

3 : USB2.0 Connector (USB2H_2_3)

4 : COM Port Header (RS232/422/485)

This motherboard supports RS232/422/485 on COM1 port. Please refer to below table for the pin definition. In addition, COM1 port (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 Port Pin Definition

PIN	RS232	RS422	RS485
1	DCD, Data Carrier Detect	TX-	RTX-
2	RXD, Receive Data	TX+	RTX+
3	TXD, 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

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)

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
7	R_SATA_RXP0
6	R_SATA_RXN0
5	GND
4	GND
3	R_SATA_TXN0
2	R_SATA_TXP0
1	GND

9 : JP1
JP1_12 : SIO AT Mode
JP1_34 : CMOS Normal
JP1_46 : Clear CMOS

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)

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

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.