Asrock A320M Pro4 Quick Installation Guide

Version 1.0
Published January 2017
Copyright©2017 ASRock INC. All rights reserved.

Copyright Notice:

No part of this documentation may be reproduced, transcribed, transmitted, or
translated in any language, in any form or by any means, except duplication of
documentation by the purchaser for backup purpose, without written consent of
ASRock Inc.

Products and corporate names appearing in this documentation may or may not
be registered trademarks or copyrights of their respective companies, and are used
only for identication or explanation and to the owners’ benet, without intent to

infringe.

Disclaimer:

Specications and information contained in this documentation are furnished for
informational use only and subject to change without notice, and should not be
constructed as a commitment by ASRock. ASRock assumes no responsibility for
any errors or omissions that may appear in this documentation.

With respect to the contents of this documentation, ASRock does not provide
warranty of any kind, either expressed or implied, including but not limited to
the implied warranties or conditions of merchantability or tness for a particular
purpose.

In no event shall ASRock, its directors, ocers, employees, or agents be liable for
any indirect, special, incidental, or consequential damages (including damages for
loss of prots, loss of business, loss of data, interruption of business and the like),
even if ASRock has been advised of the possibility of such damages arising from any
defect or error in the documentation or product.

is device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that

may cause undesired operation.

CALIFORNIA, USA ONLY

e Lithium battery adopted on this motherboard contains Perchlorate, a toxic substance
controlled in Perchlorate Best Management Practices (BMP) regulations passed by the
California Legislature. When you discard the Lithium battery in California, USA, please
follow the related regulations in advance.
“Perchlorate Material-special handling may apply, see www.dtsc.ca.gov/hazardouswaste/
perchlorate”

ASRock Website: http://www.asrock.com

AUSTRALIA ONLY

Our goods come with guarantees that cannot be excluded under the Australian Consumer
Law. You are entitled to a replacement or refund for a major failure and compensation for
any other reasonably foreseeable loss or damage caused by our goods. You are also entitled
to have the goods repaired or replaced if the goods fail to be of acceptable quality and the
failure does not amount to a major failure. If you require assistance please call ASRock Tel

: [phone] ext.123 (Standard International call charges apply)

e 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.

Motherboard Layout

ATXP WR 1

Sup er

I/O

CLRCMOS1

1

PCI E2

1

USB_2_3

HD_AUDI O1

1

CPU_FAN1

Top:

LINE IN

Center :

FRONT

Bottom :

MIC IN

RJ- 45 LAN

USB 2. 0
T: USB1
B: USB 2

SOCKE T AM4

Fro nt USB 3. 0

1

COM1

CMO S

Bat tery

ATX12V1

USB 3.0

USB31_T C_1

M2_1

Ult ra M.2

PCIe Ge n3 x4

USB3_3 _4

1

CHA_FAN1

CHA_FAN2

HDLED RESET

PLED P WRBTN

PANEL1

1

RoH S

SPK_PLED 1

1

PCI E xpres s 3.0

DDR4 _A1 (64 b it, 288 -pin mo dule)

DDR4 _A2 (64 b it, 288 -pin mo dule)

DDR4 _B1 (64 b it, 288 -pin mo dule)

DDR4 _B2 (64 b it, 288 -pin mo dule)

PCI E1

PCI E3

M2_2

M2_2_CT 2M2_2_CT 3M 2_2_C T4 M2_2_CT 1

AMD

Pro montor y

B35 0

PS2

Keybo ard

PS2

Mouse

USB 3. 0
T: USB2
B: USB 3

USB 3. 0
T: USB4
B: USB 5

RGB_HEADE R11AMD_FAN_LE D1

1

USB_5

1

M2_1_CT 3M2_1_CT 2M 2_1_C T1

1

USB_2_4

TPMS1

1

SATA3_3

SATA3_4

SATA3_1

SATA3_2

AB35 0M P ro 4

HDMI 1

DVI1

VGA1

AB350M Pro4:

AB350M Pro4
A320M Pro4

BIOS
ROM

English

1

No. Description

1 ATX 12V Power Connector (ATX12V1)

2 CPU Fan Connector (CPU_FAN1)

3 2 x 288-pin DDR4 DIMM Slots (DDR4_A1, DDR4_B1)

4 2 x 288-pin DDR4 DIMM Slots (DDR4_A2, DDR4_B2)

5 RGB LED Header (RGB_HEADER1)

6 AMD Fan LED Header (AMD_FAN_LED1)

7 ATX Power Connector (ATXPWR1)

8 USB 3.0 Header (USB3_3_4)

9 AMD LED Fan USB Header (USB_5)

10 SATA3 Connector (SATA3_3)

11 SATA3 Connector (SATA3_4)

12 SATA3 Connector (SATA3_2)

13 SATA3 Connector (SATA3_1)

14 System Panel Header (PANEL1)

15 Power LED and Speaker Header (SPK_PLED1)

16 Chassis Fan Connector (CHA_FAN2)

17 USB 2.0 Header (USB_2_3)

18 USB 2.0 Header (USB_2_4)

19 Clear CMOS Jumper (CLRCMOS1)

20 COM Port Header (COM1)

21 TPM Header (TPMS1)

22 Front Panel Audio Header (HD_AUDIO1)

23 Chassis Fan Connector (CHA_FAN1)

English

2

A320M Pro4:

ATXP WR 1

Sup er

I/O

CLRCMOS1

1

PCI E2

1

USB_2_3

HD_AUDI O1

1

CPU_FAN1

Top:

LINE IN

Center :

FRONT

Bottom :

MIC IN

RJ- 45 LAN

USB 2. 0
T: USB1
B: USB 2

SOCKE T AM4

Fro nt USB 3. 0

1

COM1

CMO S

Bat tery

ATX12V1

USB 3.0

USB31_T C_1

M2_1

Ult ra M.2

PCIe Ge n3 x4

USB3_3 _4

1

CHA_FAN1

CHA_FAN2

HDLED RESET

PLED P WRBTN

PANEL1

1

RoH S

SPK_PLED 1

1

PCI E xpres s 3.0

DDR4 _A1 (64 b it, 288 -pin mo dule)

DDR4 _A2 (64 b it, 288 -pin mo dule)

DDR4 _B1 (64 b it, 288 -pin mo dule)

DDR4 _B2 (64 b it, 288 -pin mo dule)

PCI E1

PCI E3

M2_2

M2_2_CT 2M2_2_CT 3M 2_2_C T4 M2_2_CT 1

AMD

Pro montor y

A32 0

PS2

Keybo ard

PS2

Mouse

USB 3. 0
T: USB2
B: USB 3

USB 3. 0
T: USB4
B: USB 5

RGB_HEADE R11AMD_FAN_LE D1

1

M2_1_CT 3M2_1_CT 2M 2_1_C T1

1

USB_2_4

TPMS1

1

SATA3_3

SATA3_4

SATA3_1

SATA3_2

20

19

21

22

A320 M Pr o4

HDMI 1

DVI1

VGA1

1

AB350M Pro4
A320M Pro4

5

3

2

4

6

7

BIOS
ROM

8

9

17

18

16

10

11

12

14

15

13

English

3

No. Description

1 ATX 12V Power Connector (ATX12V1)

2 CPU Fan Connector (CPU_FAN1)

3 2 x 288-pin DDR4 DIMM Slots (DDR4_A1, DDR4_B1)

4 2 x 288-pin DDR4 DIMM Slots (DDR4_A2, DDR4_B2)

5 RGB LED Header (RGB_HEADER1)

6 AMD Fan LED Header (AMD_FAN_LED1)

7 ATX Power Connector (ATXPWR1)

8 USB 3.0 Header (USB3_3_4)

9 SATA3 Connector (SATA3_3)

10 SATA3 Connector (SATA3_4)

11 SATA3 Connector (SATA3_2)

12 SATA3 Connector (SATA3_1)

13 System Panel Header (PANEL1)

14 Power LED and Speaker Header (SPK_PLED1)

15 Chassis Fan Connector (CHA_FAN2)

16 USB 2.0 Header (USB_2_3)

17 USB 2.0 Header (USB_2_4)

18 Clear CMOS Jumper (CLRCMOS1)

19 COM Port Header (COM1)

20 TPM Header (TPMS1)

21 Front Panel Audio Header (HD_AUDIO1)

22 Chassis Fan Connector (CHA_FAN1)

English

4

I/O Panel

1

AB350M Pro4
A320M Pro4

4

2

3

5

11

10

8 7913 12

No. Description No. Description

1 PS/2 Mouse Port 8 USB 3.0 Ports (USB3_23)

2 DVI-D Port 9 USB 3.0 Type-C Port (USB31_TC_1)

3 LAN RJ-45 Port* 10 HDMI Port

4 Line In (Light Blue)** 11 D-Sub Port

5 Front Speaker (Lime)** 12 USB 2.0 Ports (USB_1_2)

6 Microphone (Pink)** 13 PS/2 Keyboard Port

7 USB 3.0 Ports (USB3_45)

* ere are two LEDs on each LAN port. Please refer to the table below for the LAN port LED indications.

ACT/LINK L ED

SPEED LE D

LAN Por t

Activity / Link LED Speed LED

Status Description Status Description

O No Link O 10Mbps connection
Blinking Data Activity Orange 100Mbps connection
On Link Green 1Gbps connection

6

English

5

** To congure 7.1 CH HD Audio, it i s required to use an HD front panel audio module and enable the multi­channel audio feature through the audio driver.

Please set Speaker Conguration to “7.1 Speaker”in the Realtek HD Audio Manager.

Function of the Audio Por ts in 7.1-channel Con guration:

English

6

Port Function

Light Blue (Rear panel) Rear Speaker Out
Lime (Rear panel) Front Speaker Out
Pink (Rear panel) Central /Subwoofer Speaker Out
Lime (Front panel) Side Speaker Out

Chapter 1 Introduction

ank you for purchasing ASRock AB350M Pro4 / A320M Pro4 motherboard,
a reliable motherboard produced under ASRock ’s consistently stringent quality
control. It delivers excellent performance with robust design conforming to
ASRock’s commitment to quality and endurance.

Becau se the motherboard specications and the BIOS soware might be updated, the
content of this manual will be subject to change without notice. In ca se any modica­tions of this manual occur, the updated version will be available on ASRock’s website
without further notice. If you require technical suppor t related to this motherboard,
please visit our website for spe cic information about the model you are using. You
may nd the l atest VGA cards and CPU support list on ASRock’s website a s well.
ASRock website http://www.asrock.com.

1.1 Package Contents

ASRock AB350M Pro4 / A320M Pro4 Motherboard (Micro ATX Form Factor)

•

ASRock AB350M Pro4 / A320M Pro4 Quick Installation Guide

•

ASRock AB350M Pro4 / A320M Pro4 Support CD

•

1 x I/O Panel Shield

•

2 x Serial ATA (SATA) Data Cables (Optional)

•

2 x Screws for M.2 Sockets (Optional)

•

AB350M Pro4
A320M Pro4

English

7

1.2 Specications

Platform

CPU

Chipset

Memory

•

•

•

•

•

•

•

•

•

•

•

•

* Please refer to Memory Support List on ASRock’s website for
more information. (http://www.asrock.com/)
* Please refer to page 24 for DDR4 UDIMM maximum frequency
support.

•

•

Micro ATX Form Factor
Solid Capacitor design

Supports AMD Socket AM4 A-Series APUs (Bristol Ridge)
and Ryzen CPUs (Summit Ridge)
Digi Power design
9 Power Phase design
Supports 95W Air Cooling

AMD Promontory B350 (AB350M Pro4)
AMD Promontory A320 (A320M Pro4)

Dual Channel DDR4 Memory Technology
4 x DDR4 DIMM Slots
AMD Ryzen series CPUs support DDR4 3200+(OC)/2933
(OC)/2667/2400/2133 ECC & non-ECC, un-buered
memory*
AMD 7th Gen A-Series APUs support DDR4 2400/2133 ECC
& non-ECC, un-buered memory*

Max. capacity of system memory: 64GB
15μ Gold Contact in DIMM Slots

English

8

Expansion
Slot

1 x PCI Express 3.0 x16 Slot (PCIE2: x16 mode)*

•

* Supports NVMe SSD as boot disks
* AMD Ryzen series CPUs support PCIE2: x16 mode
* AMD 7th A-Series APUs support PCIE2: x8 mode

1 x PCI Express 2.0 x16 Slot (PCIE3: x4 mode (AB350M Pro4)

•

/ x2 mode (A320M Pro4))
1 x PCI Express 2.0 x1 Slot

•

Graphics

Audio

Integrated AMD RadeonTM R7/R5 Series Graphics in A-series

•

APU
DirectX 12, Pixel Shader 5.0

•

Max. shared memory 2GB

•

ree graphics output options: D-Sub, DVI-D and HDMI

•

Supports Triple Monitor

•

Supports HDMI with max. resolution up to 4K x 2K

•

(4096x2160) @ 24Hz / (3840x2160) @ 30Hz
Supports DVI-D with max. resolution up to 1920x1200 @

•

60Hz
Supports D-Sub with max. resolution up to 1920x1200 @

•

60Hz
Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and

•

HBR (High Bit Rate Audio) with HDMI Port (Compliant
HDMI monitor is required)
Supports HDCP with DVI-D and HDMI Ports

•

Supports Full HD 1080p Blu-ray (BD) playback with DVI-D

•

and HDMI Ports

7.1 CH HD Audio with Content Protection (Realtek ALC892

•

Audio Codec)
* To congure 7.1 CH HD Audio, it is required to use an HD
front panel audio module and enable the multi-channel audio
feature through the audio driver.

Premium Blu-ray Audio support

•

Supports Surge Protection

•

ELNA Audio Caps

•

AB350M Pro4
A320M Pro4

LAN

PCIE x1 Gigabit LAN 10/100/1000 Mb/s

•

Realtek RTL8111GR

•

Supports Wake-On-LAN

•

Supports Lightning/ESD Protection

•

Supports LAN Cable Detection

•

Supports Energy Ecient Ethernet 802.3az

•

Supports PXE

•

English

9

Rear Panel
I/O

Storage

1 x PS/2 Mouse Port

•

1 x PS/2 Keyboard Port

•

1 x D-Sub Port

•

1 x DVI-D Port

•

1 x HDMI Port

•

2 x USB 2.0 Ports (Supports ESD Protection)

•

1 x USB 3.0 Type-C Port (Supports ESD Protection)

•

4 x USB 3.0 Ports (Supports ESD Protection)

•

1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED

•

LED)
HD Audio Jacks: Line in / Front Speaker / Microphone

•

4 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0,

•

RAID 1 and RAID 10), NCQ, AHCI and Hot Plug*
* M2_2 and SATA3_4 share lanes. If either one of them is in use,
the other one will be disabled.

1 x Ultra M.2 Socket (M2_1), supports type 2242/2260/2280

•

M.2 PCI Express module up to Gen3 x4 (32 Gb/s) (with Ryzen

CPU) or Gen3 x2 (16 Gb/s) (with A-Series APU)**

1 x M.2 Socket (M2_2), supports type 2230/2242/2260/2280

•

M.2 SATA3 6.0 Gb/s module**
** Supports NVMe SSD as boot disks
** Supports ASRock U.2 Kit

English

10

Connector

1 x COM Port Header

•

1 x TPM Header

•

1 x Power LED and Speaker Header

•

1 x RGB LED Header

•

* Supports up to 12V/3A, 36W LED Strip

1 x AMD Fan LED Header

•

1 x CPU Fan Connector (4-pin)

•

* e CPU Fan Connector supports the CPU fan of maximum
1A (12W) fan power.

2 x Chassis Fan Connectors (1 x 4-pin, 1 x 3-pin) (Smart Fan

•

Speed Control)
* CHA_FAN1 can auto detect if 3-pin or 4-pin fan is in use.

1 x 24 pin ATX Power Connector

•

1 x 8 pin 12V Power Connector

•

1 x Front Panel Audio Connector

•

BIOS
Feature

Hardware
Monitor

OS

AB350M Pro4
A320M Pro4

1 x AMD LED Fan USB Header (for AB350M Pro4 only)

•

2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD

•

Protection)
1 x USB 3.0 Header (Supports 2 USB 3.0 ports) (Supports ESD

•

Protection)

AMI UEFI Legal BIOS with multilingual GUI support

•

Supports “Plug and Play”

•

ACPI 5.1 compliance wake up events

•

Supports jumperfree

•

SMBIOS 2.3 support

•

DRAM Voltage multi-adjustment

•

CPU/Chassis temperature sensing

•

CPU/Chassis Fan Tachometer

•

CPU/Chassis Quiet Fan

•

CPU/Chassis Fan multi-speed control

•

Voltage monitoring: +12V, +5V, +3.3V, Vcore

•

Microso® Windows® 10 64-bit

•

* For the updated Windows® 10 driver, please visit ASRock’s web­site for details: http://www.asrock.com

FCC, CE, WHQL

Certica­tions

* For detailed product information, please visit our website: http://ww w.asrock.com

Please realize that the re is a certain risk involved with overclocking, including adjust­ing the setting in the BIOS, applying Untied Ove rclocking Technology, or using third­party overclocking tools. Overclocking may aect your system’s stability, or even cause
damage to the components and devices of your system. It should be done at your own
risk and expense. We are not responsible for possible damage cau sed by overclocking.

•

ErP/EuP ready (ErP/EuP ready power supply is required)

•

English

11

Chapter 2 Installation

is is a Micro ATX form factor motherboard. Before you install the motherboard,
study the conguration of your chassis to ensure that the motherboard ts into it.

Pre-installation Precautions

Take note of the following precautions before you install motherboard components
or change any motherboard settings.

Make sure to unplug the power cord before installing or removing the motherboard.

•

Failure to do so may cause physical injuries to you and damages to motherboard
components.
In order to avoid damage from static electricity to the motherboard’s components,

•

NEVER place your motherboard directly on a carpet. Also remember to use a grounded
wrist strap or touch a safety grounded object before you handle the components.
Hold components by the edges and do not touch the ICs.

•

Whenever you uninstall any components, place them on a grounded anti-static pad or

•

in the bag that comes with the components.
When placing screws to secure the motherboard to the chassis, please do not over-

•

tighten the screws! Doing so may damage the motherboard.

English

12

2.1 Installing the CPU

Unplug all power cables be fore installing the CPU.

1

AB350M Pro4
A320M Pro4

2

English

13

3

English

14

2.2 Installing the CPU Fan and Heatsink

Aer you install the CPU into this motherboard, it is necessary to install a larger
heatsink and cooling fan to dissipate heat. You also need to spray thermal grease
between the CPU and the heatsink to improve heat dissipation. Make sure that the
CPU and the heatsink are securely fastened and in good contact with each other.

Please turn o the power or remove the power cord before changing a CPU or heatsink.

Installing the CPU Box Cooler SR1

1

AB350M Pro4
A320M Pro4

2

English

15

3

English

16

4

1

N

FA

_

U

P

C

Installing the AM4 Box Cooler SR2

1

AB350M Pro4
A320M Pro4

2

English

17

3

English

18

AB350M Pro4
A320M Pro4

4

1

N

FA

_
U

P

C

5

4-pin FAN cable

RGB LED Cable

1

FAN

CPU_

1

D

LE

_

N

FA

_

D

AM

+12V

*e diagram shown here are for reference only. Please refer to page 30 for the orientation of
AMD Fan LED Header (AMD_FAN_LED1).

English

19

Installing the AM4 Box Cooler SR3

1

English

20

2

AB350M Pro4

4

A320M Pro4

3

English

21

5

CPU_FAN1

English

22

AB350M Pro4
A320M Pro4

6

1

N
FA

_

U

P

C

1

D

E

L

_

N

FA

_

D

AM

+12V

or

7

1

N
FA

_

U

P

C

1

D

E

L

_

N

FA

_

D

AM

5

_

B

S

U

Please note that only one cable should be used at a time in this step.
If you select AMD_FAN_LED1, please install ASRock utility "ASRock RGB LED".
If you select USB connector, please install AMD utility "SR3 Settings Soware".

*e diagram shown here are for reference only. Please refer to page 32 for the orientation of AMD Fan
LED Header (AMD_FAN_LED1) and page 29 for the orientation of AMD LED Fan USB Header (USB_5).

23

English

2.3 Installing Memory Modules (DIMM)

is motherboard provides four 288-pin DDR4 (Double Data Rate 4) DIMM slots,
and supports Dual Channel Memory Technology.

1. For dual channel conguration, you always need to install identical (the same
brand, speed , size and chip-type) DDR4 DIMM pairs.

2. It is unable to activate Dual Channel Memor y Technology with only one or three
memory module installed.

3. It is not allowed to install a DDR, DDR2 or DDR3 memory module into a DDR4
slot; otherwise, this motherboard and DIMM may be damaged.

DDR4 UDIMM Maximum Frequency Support

A-Series APUs:

UDIMM Memory Slot

A1 A2 B1 B2

- SR - - 2400

- DR - - 2400

- SR - SR 2400

- DR - DR 2133

SR SR SR SR 1866

SR/DR DR SR/DR DR 1866

Frequency

(Mhz)

English

24

Ryzen CPUs:

UDIMM Memory Slot

A1 A2 B1 B2

- SR - - 2667

- DR - - 2667

- SR - SR 2667

- DR - DR 2400-2667

SR SR SR SR 2133-2400

SR/DR DR SR/DR DR 1866-2133

SR: Single rank DIMM, 1Rx4 or 1Rx8 on DIMM module label

DR: Dual rank DIMM, 2Rx4 or 2R x8 on DIMM module label

Frequency

(Mhz)

AB350M Pro4
A320M Pro4

e DIMM only ts in one correct orientation. It will cause permanent damage to
the mothe rboard and the DIMM if you force the DIMM into the slot at incor rect
orientation.

1

2

3

English

25

2.4 Expansion Slots (PCI Express Slots)

ere are 3 PCI Express slots on the motherboard.

Before installing an ex pansion card, please make sure that the power supply is
switched o or the power cord is unplugged. Plea se read the documentation of the
expan sion card and make necessary hardware settings for the card before you start
the installation.

PCIe slots:

PCIE1 (PCIe 2.0 x1 slot) is used for PCI Express x1 lane width cards.
PCIE2 (PCIe 3.0 x16 slot) is used for PCI Express x16 lane width graphics cards.*
PCIE3 (PCIe 2.0 x16 slot) is used for PCI Express x4 (AB350M Pro4) / x2 (A320M
Pro4) lane width graphics cards.
* PCIE2 will downgrade to x8 mode when A-Series APU is installed.

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26

2.5 Jumpers Setup

e illustration shows how jumpers are setup. When the jumper cap is placed on
the pins, the jumper is “Short”. If no jumper cap is placed on the pins, the jumper
is “Open”. e illustration shows a 3-pin jumper whose pin1 and pin2 are “Short”

when a jumper cap is placed on these 2 pins.

Clear CMOS Jumper
(CLRMOS1)
(see p.1, No. 19 or p.3, No.

18)

CLRMOS1 allows you to clear the data in CMOS. To clear and reset the system
parameters to default setup, please turn o the computer and unplug the power
cord from the power supply. Aer waiting for 15 seconds, use a jumper cap to
short pin2 and pin3 on CLRMOS1 for 5 seconds. However, please do not clear the
CMOS right aer you update the BIOS. If you need to clear the CMOS when you
just nish updating the BIOS, you must boot up the system rst, and then shut it
down before you do the clear-CMOS action. Please be noted that the password,
date, time, and user default prole will be cleared only if the CMOS battery is
removed.

Clear CMOSDefault

AB350M Pro4
A320M Pro4

If you clear the CMOS, the case open may be detec ted. Please adjust the BIOS option
“Clear Status” to clear the record of previou s chassis intrusion status.

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27

2.6 Onboard Headers and Connectors

Onboard headers and connectors are NOT jumpers. Do NOT place jumper caps over
these headers and connectors. Placing jumper caps over the headers and connectors
will cause permanent damage to the motherboard.

System Panel Header
(9-pin PANEL1)
(see p.1, No. 14 or p.3, No.

13)

PWRBTN (Power Switch):

Connec t to the power switch on the chassi s front panel. You may congure the way to
turn o your system using the power switch.

RESET (Reset Switch):

Connec t to the reset switch on the chassis front panel. Press the reset sw itch to restart
the computer if the compute r freezes and fails to perform a normal restart.

PLED (Syste m Power LED):

Connec t to the power status indicator on the chassis front panel. e LED i s on when
the system is ope rating. e LED keeps blinking when the system i s in S3 sleep state.
e LED is o when the system is in S4 sleep state or powered o (S5).

HDLED (Ha rd Drive Activity LED):

Connec t to the hard drive activity LED on the chassis front panel. e LED is on when
the hard dr ive is reading or writing data.

e front panel design may dier by chassis. A front panel module mainly consists
of power switch, reset switch, power LED, hard dr ive activity LED, speak er and etc.
When connecting your chassis front panel module to this head er, make sure the wire
assig nments and the pin assig nments are matched correctly.

1

PLE D+

PLE D-

HDL ED-

HDL ED+

PWR BTN#

GND

RES ET#

GND

GND

Connect the power
switch, reset switch and
system status indicator on
the chassis to this header
according to the pin
assignments below. Note
the positive and negative
pins before connecting
the cables.

English

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