ASRock IMB-146 Series manual Digital I/O Header Gpio from Super I/O, COM Port Header

Jumpers and headers setting guide

IMB-146 1 2 3 4 5 6

DC_JACK1

PS2

Keyboard

ATX12V1

1

DVI1

SET_CM2

CPU_FAN1

1

SATA_PWR1

COM1

USB 2.0

T:USB0

B:USB1

USB 2.0

T:USB2

B:USB3

1

DIO1

SET_CM1

1

1

COM2

DDR3A1 DDR3B1 IMB-146

7

8

RJ-45

VGA1

LAN

AUDIO

CODEC

			SPEAKER_OUT1
1	1	1	1	1	1

MIC_IN1 LINE_OUT1 LINE_IN1 USB6 USB4_5

	CMOS
	Battery
	16Mb
	BIOS
	BLT_VOL1
	LPC1
CHA_FAN1
1
LPT1	1

PCIE1

LVDS2

LVDS1

	BUZZ1
SATAII 2	SATAII 1
	1
	LVDS2_BLT_CTL1
	1
1
LVDS_VOL1	BLT_PWR3
	1
	BLT_PWR2

1

1CLRCMOS1

1

PWR_JP1

1

1

PANEL1

9

10

11

12

13

14

15

1 : ATX 12V Power Connector

16

7 : mini PCIE Connector (Half size only)

8,10 : SATA2 Connectors

9 : Buzzer

2 : DVI Connector

2 1

PIN Signal Name PIN Signal Name
2	NC	1	GND
4	GND	3	TMDS CLK-
6	TMDS DATA1+	5	TMDS CLK+
8	TMDS DATA1-	7	GND
10	GND	9	GND
12	DDC DATA	11	TMDS DATA0+
14	DDC CLK	13	TMDS DATA0-
16	GND	15	GND

18TMDS DATA2+ 17 HOT PLUG

20 TMDS DATA2- 19 +5V

11 : LVDS2 Backlight Control Connector

1

Backlight Power Connectors

12 : BLT_PWR2 (for LVDS1)

13 : BLT_PWR3 (for LVDS2)

1

PIN	Signal Name
1	GND
2	BL DW
3	BL UP
4	LVDS2 EN
PIN	Signal Name
1	+12V
2	+12V
3	BL EN
4	BL CTL

3 : Digital I/O Header GPIO from Super I/O

2 1

PIN	Signal Name	PIN	Signal Name
10	GND	9	+5V
8	GP3	7	GP7
6	GP2	5	GP6
4	GP1	3	GP5
2	GP0	1	GP4
Super I/O: Nuvoton NCT6776D

14 : Clear CMOS Header

1-2: Normal (Default)

2-3: Clear CMOS

15 : PWR_JP Header

1-2: AT Mode

2-3: ATX Mode (Default)

5	GND
6	GND

4 : COM Port Header

2 1

PIN	Signal Name	PIN	Signal Name
2	NC	1	GND
4	COM PWR/RI	3	DTR
6	CTS	5	TXD
8	RTS	7	RXD
10	DSR	9	COM PWR/DCD

16 : System Panel Header	PIN Signal Name PIN Signal Name
2	1	GND	2	RESET#
	3	GND	4	PWRBTN#
	5	HDLED+	6	HDLED-
1	7	PLED+	8	SUS LED

5 : 4-Pin CPU FAN Connector (+12V)
6 : SATA Power Output Connector	GND +5V

1

+12V GND