ASROCK IMB-791 Service manual

17 : Printer Port / GPIO
Header (LPT_GPIO1)
Printer Port:
GPIO:
18 : Digital Input / Output Power Select
(JGPIOPWR) (JGPIO_PWR1)
1-2 : +12V
2-3 : +5V
3-4 : +5V
4-5: GND
19 : LPC Header
20 : Digital Input / Output Power Select
(JGPIO_SET1)
1-2 : +5V
2-3 : GND
Clear CMOS Headers
10 : CLRMOS2
12 : CLRMOS1
1-2 : Normal
2-3 : Clear CMOS
11 : COM Port Headers (COM3, 4)
(RS232)
COM Port Pin9 PWR Setting Jumpers
13 : PWR_COM3 (For COM Port3)
PWR_COM4 (For COM Port4)
31 : PWR_COM2 (For COM Port2)
34 : PWR_COM1 (For COM Port1)
1-2 : +5V
2-3 : +12V
14 : Chassis Intrusion Headers
(CI1, CI2)
Short : Active Case Open
Open : Normal
15 : USB 2.0 Headers
( USB2_4_5, USB2_6_7 )
1 : ATX 12V Power Connector
2 : CPU FAN Connector (+12V)
3 : DDR4 DIMM Slots (DDR4_A1, DDR4_B1)
4 : 24-pin ATX Power Input Connector
5 : SATA3 Connectors
(SATA3_1 ~ SATA3_4)
USB Power Setting Jumpers
6 : USB2_PWR3 (For USB2_9)
16 : USB2_PWR1 (For USB2_4_5),
USB2_PWR2 (For USB2_6_7)
25 : USB3_PWR1 (For USB3_1_2),
USB3_PWR2 (For USB3_3_4)
1-2 : +5V
2-3 : +5VSB
7 : ATX/AT Mode Jumper (PWR_JP1)
1-2 : AT Mode
2-3 : ATX Mode
8 : Vertical Type A USB 2.0 Port (USB2_9)
9 : System Panel Header
IMB-791
Jumpers and Headers Setting Guide
8 5
4 1
GND
RESET#
PWRBTN#
PLED-
PLED+
GND
HDLED-
HDLED+
1
GND
1
GND
GND
S_PWRDWN#
LAD2
SMB_CLK_MAIN
PCICLK
PCIRST#
LAD3
+3V
LAD0
GND
FRAME
SMB_DATA_MAIN
LAD1
SERIRQ#
GND +3VSB
48MHz +5V
CCTS#1
COM PWR
DDSR#1
DDTR#1
RRXD1
GND
TTXD1
DDCD#1
1
RRTS#1
GND
+12V
CPU_FAN_SPEED
FAN_SPEED_CONTROL
12
1
24
13
1
Signal
GND
DUMMY
GND
GND
P+
P-
USB_PWR
P+
P-
USB_PWR
1
1
SPD0
STB#
SPD1
SPD2
SPD3
SPD4
SPD6
SPD7
GND GND
SLIN#
PINIT#
ERROR#
AFD#
GND GND GND GND GND GND
SPD5 ACK# BUSY PE SLCT
* If you want to use the printer port function, please short pin4 and pin5 on
Digital Input / Output Power Select (JGPIO_PWR1).
PIN Signal Name PIN Signal Name
26 NC 25 NA 24 GND 23 SIO_GP30 22 GND 21 SIO_GP31 20 GND 19 SIO_GP32 18 GND 17 SIO_GP33 16 GND 15 SIO_GP34 14 GND 13 SIO_GP35 12 JGPIOPWR 11 SIO_GP36 10 JGPIOPWR 9 SIO_GP37
8 SIO_GP43 7 SIO_GP40 6 SIO_GP44 5 SIO_GP41 4 SIO_GP45 3 SIO_GP42 2 SIO_GP46 1 SIO_GP47
1
ATXPWR1
DDR4_A1 (64 bit, 288-pin module)
DDR4_B1 (64 bit, 288-pin module)
PCI1
PCIE1
1
HD_AUDIO1
COM3
1
CMOS
Battery
HDLED RESET
PLED PWRBTN
PANEL1
1
Super
I/O
CLRMOS1
1
BIOS
ROM
CPU_FAN1
USB2_4_5
1
1
CI1
1
CI2
PWR_JP1
1
1
LPT_GPIO1
BUZZ1
mini-SATA
RoHS
IMB-791
Top:
LAN2
USB 3.0
T: USB3
B: USB4
COM2
VGA1
COM1
PS2
Keyboard
/Mouse
PCIE2
ATX12V1
AUDIO
CODEC
PCIE4
CHA_FAN1
COM4
1
SATA3_3
SATA3_4
SATA3_1
SATA3_2
LPC1
1
1
PWR_LOSS1
JGPIO_SET1
1
Industrial
PCI2
PCI3
USB2_9
CLRMOS2
1
SPDIF1
1
JGPIO_PWR1
1
USB2_PWR1
1
USB2_PWR2
1
USB2_6_7
1
1
PWR_COM3
1
PWR_COM4
USB2_PWR3
1
1
PWR_COM1
1
PS2_PWR1
1
PWR_COM2
1
LAN_LED3
1
LAN_LED4
1
USB3_PWR1
1
USB3_PWR2
BUZZ2
1
DP1 DP1
Top:
Line In
Center:
Line Out
Bottom:
Mic In
USB 3.0
T: USB1
B: USB2
P/ N: 15G06M039000AK V1.0
*15G06M039000AK*

21 : Front Panel Audio Header
22 : SPDIF Header
23 : PWR LOSS Header (PWR_LOSS1)
Short : Power Loss
Close : no Power Loss
24 : Buzzer (BUZZ2)
26 : Audio Jacks
Blue - Line In
Green - Line Out
Pink - Mic In
LAN LED Headers (LAN_LED3 ~ 4)
27 : LAN2 Speed LED Header (LAN_LED4),
LAN2 ACT/LINK LED Header
(LAN_LED3)
28 : Top : RJ45 LAN Port (LAN2)
Bottom : USB 3.0 Ports (USB3_3_4)
29 : Chassis FAN Connector (+12V)
30 : USB 3.0 Ports (USB3_1_2)
32 : Top : COM Port (COM2) (RS232)
Bottom : VGA Port (VGA1)
33 : PS2 Power Setting Jumper
(PS2_PWR1 (For PS2 Keyboard/Mouse))
1-2 : +5V
2-3 : +5VSB
35 : Top : COM Port (COM1)
(RS232/422/485)*
Bottom Right : PS/2 Keyboard/Mouse Port
36 : DisplayPorts (DP1)
* 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.
COM1 Port Pin Denition
PIN RS232 RS422 RS485
1 DCD, Data Carrier Detect TX- RTX-
2 RXD, Receive Data RX+ N/A
3 TXD, Transmit Data TX+ RTX+
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 No Power/5V/12V N/A N/A
+5VSB_ATX
GND
+12V
CHA_FAN_SPEED
FAN_SPEED_CONTROL
+5V
+ -
ATXPWR1
DDR4_A1 (64 bit, 288-pin module)
DDR4_B1 (64 bit, 288-pin module)
PCI1
PCIE1
1
HD_AUDIO1
COM3
1
CMOS
Battery
HDLED RESET
PLED PWRBTN
PANEL1
1
Super
I/O
CLRMOS1
1
BIOS
ROM
CPU_FAN1
USB2_4_5
1
1
CI1
1
CI2
PWR_JP1
1
1
LPT_GPIO1
BUZZ1
mini-SATA
RoHS
IMB-791
Top:
LAN2
USB 3.0
T: USB3
B: USB4
COM2
VGA1
COM1
PS2
Keyboard
/Mouse
PCIE2
ATX12V1
AUDIO
CODEC
PCIE4
CHA_FAN1
COM4
1
SATA3_3
SATA3_4
SATA3_1
SATA3_2
LPC1
1
1
PWR_LOSS1
JGPIO_SET1
1
Industrial
PCI2
PCI3
USB2_9
CLRMOS2
1
SPDIF1
1
JGPIO_PWR1
1
USB2_PWR1
1
USB2_PWR2
1
USB2_6_7
1
1
PWR_COM3
1
PWR_COM4
USB2_PWR3
1
1
PWR_COM1
1
PS2_PWR1
1
PWR_COM2
1
LAN_LED3
1
LAN_LED4
1
USB3_PWR1
1
USB3_PWR2
BUZZ2
1
DP1 DP1
Top:
Line In
Center:
Line Out
Bottom:
Mic In
USB 3.0
T: USB1
B: USB2