DFI GM831-CSF Owner's manual

Brand: DFI

Model: GM831-CSF

Category: Motherboards

Type: Owner's manual

GM831-CSF

A-618-M-2050

Gaming Computing System

User’s Manual

2User's Manual | GM831-CSF

This publication contains information that is protected by copyright. No part of it may be re-

produced in any form or by any means or used to make any transformation/adaptation without

the prior written permission from the copyright holders.

This publication is provided for informational purposes only. The manufacturer makes no

representations or warranties with respect to the contents or use of this manual and specifi-

cally disclaims any express or implied warranties of merchantability or fitness for any particular

purpose. The user will assume the entire risk of the use or the results of the use of this docu-

ment. Further, the manufacturer reserves the right to revise this publication and make changes

to its contents at any time, without obligation to notify any person or entity of such revisions

or changes.

Changes after the publication’s first release will be based on the product’s revision. The website

will always provide the most updated information.

Trademarks

Product names or trademarks appearing in this manual are for identification purpose only and

are the properties of the respective owners.

FCC and DOC Statement on Class A

This equipment has been tested and found to comply with the limits for a Class B digital

device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reason-

able protection against harmful interference when the equipment is operated in a residential

installation. This equipment generates, uses and can radiate radio frequency energy and, if not

installed and used in accordance with the instruction manual, may cause harmful interference

to radio communications. However, there is no guarantee that interference will not occur in a

particular installation. If this equipment does cause harmful interference to radio or television

reception, which can be determined by turning the equipment off and on, the user is encour-

aged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and the receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver

is connected.

• Consult the dealer or an experienced radio TV technician for help.

Notice:

1. The changes or modifications not expressly approved by the party responsible for compli-

ance could void the user’s authority to operate the equipment.

2. Shielded interface cables must be used in order to comply with the emission limits.

3User's Manual | GM831-CSF

Table of Contents

Warranty ................................................. 4

Safety Precautions ................................... 5

Chapter 1 - Introduction ........................... 6

Overview .................................................................................6

Key Features ...........................................................................6

Gaming Section Features .......................................................... 6

Specifications ...........................................................................7

Getting to Know the GM831-CSF ..............................................9

Mechanical Dimensions ..........................................................10

Chassis Dimension (without Power Supply) ............................. 10

Mechanical Dimensions ..........................................................11

Chassis Dimension (with Power Supply) .................................. 11

Chapter 2 - Getting Started ...................... 12

Chapter 3 - Installing Devices ................... 13

Chapter 4 - Gaming I/O Board ................. 15

Gaming I/O Board - GM901 ....................................................15

FPGA .....................................................................................16

MCU ......................................................................................16

Chapter 5 - Jumper Settings ..................... 17

Clear CMOS Data ................................................................... 17

Mini PCIe/mSATA Signal Select ...............................................17

COM1/COM2 RS232/422/485 Select ........................................ 18

COM1/COM2 RS232 Power Select ........................................... 19

PS/2 Power Select..................................................................20

USB Power Select ..................................................................20

Chapter 6 - Ports and Connectors ............. 21

Overview ............................................................................... 21

PS/2 Keyboard/Mouse Port ..................................................... 21

COM (Serial) Ports .................................................................22

Graphics Interfaces ................................................................23

RJ45 LAN Ports ......................................................................24

Audio ................................................................................... 24

USB Ports ..............................................................................25

SATA (Serial ATA) Connectors ................................................. 26

Digital I/O Connector .............................................................26

Cooling Fan Connectors ..........................................................27

Power Connectors .................................................................. 27

Chassis Intrusion Connector ..................................................28

Front Panel Connector ............................................................28

LAN LED Connector ................................................................ 29

S/PDIF Connector ..................................................................29

SMBus Connector .................................................................30

Standby Power LED ...............................................................30

LPC Connector ....................................................................... 31

External COM Port Module ......................................................31

Battery .................................................................................. 33

Chapter 7 - Mounting ............................... 34

Chapter 8 - BIOS Setup ........................... 35

Chapter 9 - RAID ..................................... 56

Chapter 10 - Intel AMT Settings ............... 58

Chapter 11 - Supported Software ............. 72

4User's Manual | GM831-CSF

Static Electricity Precautions

It is easy to inadvertently damage your PC, system board, components or devices even before

installing them in your system unit. Static electrical discharge can damage computer compo-

nents without causing any signs of physical damage. You must take extra care in handling

them to ensure against electrostatic build-up.

1. To prevent electrostatic build-up, leave the system board in its anti-static bag until you are

ready to install it.

2. Wear an antistatic wrist strap.

3. Do all preparation work on a static-free surface.

4. Hold the device only by its edges. Be careful not to touch any of the components, contacts

or connections.

5. Avoid touching the pins or contacts on all modules and connectors. Hold modules or con

nectors by their ends.

Safety Measures

To avoid damage to the system:

• Use the correct DC input voltage range.

To reduce the risk of electric shock:

• Unplug the power cord before removing the system chassis cover for installation or servic-

ing. After installation or servicing, cover the system chassis before plugging the power cord.

Battery:

• Danger of explosion if battery incorrectly replaced.

• Replace only with the same or equivalent type recommend by the manufacturer.

• Dispose of used batteries according to local ordinance.

About this Manual

An electronic file of this manual can be obtained from the DFI website at www.dfi.com. To

download the user’s manual from our website, please go to Support > Download Center. On

the Download Center page, select your product or type the model name and click "Search" to

nd all technical documents including the user's manual for a specic product.

Warranty

1. Warranty does not cover damages or failures that arises from misuse of the product, in-

ability to use the product, unauthorized replacement or alteration of components and

product specifications.

2. The warranty is void if the product has been subjected to physical abuse, improper instal-

lation, modification, accidents or unauthorized repair of the product.

3. Unless otherwise instructed in this user’s manual, the user may not, under any circum-

stances, attempt to perform service, adjustments or repairs on the product, whether in or

out of warranty. It must be returned to the purchase point, factory or authorized service

agency for all such work.

4. We will not be liable for any indirect, special, incidental or consequential damages to the

product that has been modified or altered.

Important:

Electrostatic discharge (ESD) can damage your processor, disk drive and other com-

ponents. Perform the upgrade instruction procedures described at an ESD worksta-

tion only. If such a station is not available, you can provide some ESD protection by

wearing an antistatic wrist strap and attaching it to a metal part of the system chas-

sis. If a wrist strap is unavailable, establish and maintain contact with the system

chassis throughout any procedures requiring ESD protection.

5User's Manual | GM831-CSF

About the Package

The package contains the following items. If any of these items are missing or damaged,

please contact your dealer or sales representative for assistance.

• GM831-CSF system unit

• Power Supply (PSU)

• CD disk includes

- Manual

- Drivers

• Quick Installation Guide

The board and accessories in the package may not come similar to the information listed

above. This may differ in accordance to the sales region or models in which it was sold. For

more information about the standard package in your region, please contact your dealer or

sales representative.

Before Using the System

Before powering-on the system, prepare the basic system components.

If you are installing the system for the first time, you will need at least one of the following

internal components.

• Storage devices such as SATA HDD or M.2 modules.

You will also need external system peripherals, which will normally include at least a keyboard,

a mouse and a video display.

Safety Precautions

• Keep this system away from humidity.

• Place the system on a stable surface. Dropping it or letting it fall may cause damage.

• The openings on the system are for air ventilation to protect the system from overheating.

DO NOT COVER THE OPENINGS.

• Place the power cord in such a way that it will not be stepped on. Do not place anything on

top of the power cord. Use a power cord that has been approved for use with the system

and that it matches the voltage and current marked on the system’s electrical range label.

• If the system will not be used for a long time, disconnect it from the power source to avoid

damage by transient overvoltage.

• If one of the following occurs, consult a service personnel:

- The power cord or plug is damaged.

- Liquid has penetrated the system.

- The system has been exposed to moisture.

- The system is not working properly.

- The system dropped or is damaged.

- The system has obvious signs of breakage.

• The unit uses a three-wire ground cable which is equipped with a third pin to ground the

unit and prevent electric shock. Do not defeat the purpose of this pin. If your outlet does

not support this kind of plug, contact your electrician to replace the outlet.

• Disconnect the system from the DC outlet before cleaning. Use a damp cloth. Do not use

liquid or spray detergents for cleaning.

6User's Manual | GM831-CSF

Chapter 1

Introduction

Chapter 1 - Introduction

Chapter 1

Overview

Key Features

Model Name GM831-CSF

Processor 9th/8th Generation Intel® Core™ LGA 1151 Socket Processors

Audio Realtek ALC888

LAN Two RJ45 LAN ports

COM COM1 : RS-232/422/485 DB9 (RS-232 w/ power)

COM3: RS-232

COM4: RS-232

Display

One HDMI

One DVI-I (DVI-D signal)

One DP++

USB Two USB 3.1 Gen 2

Two USB 3.1 Gen 1

Six USB 2.0

Front View

(with Power Supply)

Gaming Section Features

Card Name GM901

Intrusion

Detection

6 x Intrusion Dections (one is already applied to PC BOX)

Operates with and without AC power

Logs Date/ Time of latest 64 events

5 Years data retention during AC o

NVRAM Supports up to 16Mbyte

Coin Battery backup to Retain Data for 5 years during AC off

Support Battery voltage monitoring & Warning

DI/DO 32-bit Digital Input/OC Output

7User's Manual | GM831-CSF

Chapter 1

Introduction

System Processor 9th/8th Generation Intel® Core™ LGA 1151 Socket Processors:

Intel® Core™ i5-9500E (6 Cores, 9M Cache, up to 4.2 GHz);

65W

Intel® Core™ i5-9500TE (6 Cores, 9M Cache, up to 3.6 GHz);

35W

Intel® Core™ i3-9100E (4 Cores, 6M Cache, 3.7 GHz); 65W

Intel® Core™ i3-9100TE (4 Cores, 6M Cache, to 3.2 GHz);

35W

Intel® Core™ i7-8700 (6 Cores, 12M Cache, up to 4.6 GHz);

65W

Intel® Core™ i7-8700T (6 Cores, 12M Cache, up to 4.0 GHz);

35W

Intel® Core™ i5-8500 (6 Cores, 9M Cache, up to 4.1 GHz);

65W

Intel® Core™ i5-8500T (6 Cores, 9M Cache, up to 3.5 GHz);

35W

Intel® Core™ i3-8100 (4 Cores, 6M Cache, 3.6 GHz); 65W

Intel® Core™ i3-8100T (4 Cores, 6M Cache, to 3.1 GHz); 35W

Intel® Pentium® G5400 (2 Cores, 4M Cache, 3.7 GHz); 58W

Intel® Pentium® G5400T (2 Cores, 4M Cache, 3.1 GHz); 35W

Intel® Celeron® G4900 (2 Cores, 2M Cache, 3.1 GHz); 54W

Intel® Celeron® G4900T (2 Cores, 2M Cache, 2.9 GHz); 35W

Chipset Intel® Q370/H310 Chipset

Memory Four 288-pin DIMM up to 64GB

Dual Channel DDR4 2400/2666 MHz

BIOS Insyde or AMI UEFI (Supports hash and public key validation)

Graphics Controller Intel® HD Gen 9 Graphics

Feature OpenGL 5.0, DirectX 12, OpenCL 2.1

HW Decode: AVC/H.264, MPEG2, VC1/WMV9, JPEG/MJPEG,

HEVC/H265, VP8, VP9

HW Encode: MPEG2, AVC/H264, JPEG, HEVC/H265, VP8, VP9

Display 1 x HDMI

1 x DVI-I (DVI-D signal)

1 x DP++

HDMI 2.0a: resolution up to 4096x2160 @ 60Hz

DVI-D: resolution up to 1920x1200 @ 60Hz

DP++: resolution up to 4096x2106 @ 60Hz

Triple

Displays

DVI-D + HDMI + DP++

Storage Interface 5 x SATA 3.0

1 x 2.5” SSD Bay

Expansion Interface 1 x PCIe x16 (Gen 3)

2 x PCIe x4 (Gen 3)

1 x mini PCIe (PCIe/mSATA/USB2.0)

1 x M.2 2242/2260/2280 M key (PCIe

Gen3 x4 NVMe)

Support AMD E9260 Graphic card 180(L)

x115(H)mm; up to 75W

Specications

Audio Audio Codec Realtek ALC888

Ethernet Controller 1x Intel i219LM PCIe (10/100/1000Mbps) with iAMT 12.0 (only

Core i7/ i5 supports iAMT)

1x Intel I211at PCIe (10/100/1000 Mbps)

LED Indicators 1 x Power LED

1 x HDD LED

I/O Ethernet 2 x GbE (RJ-45)

Serial COM1 : RS-232/422/485 DB9 (RS-232 w/ power)

COM3: RS-232

COM4: RS-232

USB 2 x USB 3.1 Gen 2

2 x USB 3.1 Gen 1

6 x USB 2.0

Display 1 x HDMI

1 x DVI-I (DVI-D signal)

1 x DP++

Audio 1x Line-out

1x Line-in (colay,opt. by request, MOQ required)

1xMic-in

PS/S 1x PS/2 (mini-DIN-6)

Gaming Intrusion

Detection

7 x Intrusion Dections (one is already applied to PC BOX)

Operates with and without AC power

Logs Date/Time of latest 64 events

5 Years data retention during AC o

NVRAM Supports up to 16Mbyte

Coin Battery backup to Retain Data for 5 years during AC o

Support Battery voltage monitoring & Warning

DI/DO 32-bit Digital Input

32-bit OC output (29-bit x 500mA, disconnect detection for up

to 8 meters; 3-bit x 3A)

Watchdog

Timer

Output &

Interval

System Reset, Programmable via Software from 1 to 255

Seconds

Security TPM Inneon TPM 1.2/ 2.0 (Available upon request, MOQ required)

Power Type Flex-ATX 250W (optional )

Connector 12V DC-in , 24-pin ATX power

OS &

Software

Support

OS Support Windows 10(64bit)

Ubuntu 18.04 LTS 64bit

Software Supplied with gaming function SDK

Environment Operating

Temperature

0~45°C

Storage

Temperature

-20~85°C

Relative

Humidity

5%~90%

8User's Manual | GM831-CSF

Chapter 1

Introduction

Mechanism Mounting Wall Mount

Dimensions

(W x H x D)

275x146.3x296.43mm (without PSU & mounting kits)

365x145.3x296.43mm (with PSU & without mounting kits)

Weight TBD

Standards

and

certicates

Shock Operation:

IEC 60068-2-64 Test Fh: Vibration board-band random test

Half-sine, 3G @ 11ms, 18 Shock ±X, ±Y, ±Z (each axis 3

times)

Non-Operation:

IEC 60068-2-27 Test Ea: Shock test

Half-sine, 5G @ 11ms, 18 Shock ±X, ±Y, ±Z (each axis 3

times)

Vibration Operation:

IEC 60068-2-64 Test Fh: Vibration Board-Band Random Test

Random,1Grms @ 5~500 Hz, 30min.

Non-Operation:

IEC 60068-2-6 Test Fc: Vibration Sinusoidal Test

Sweep sine, 2Grms @ 10~500Hz, 30min

Certications CE, FCC class A

9User's Manual | GM831-CSF

Chapter 1

Introduction

Getting to Know the GM831-CSF

Chapter 1

Front View

DVI-I (DVI-D Signal) Port

The DVI-I port is used to connect a LCD monitor. This port supports DVI-D signal only.

Connect the display device’s cable connector to the DVI-I port. After plugging the cable

connector into the port, gently tighten the cable screws to hold the connector in place.

COM ports

COM1 (DB-9): connects RS232/RS422/RS485 devices.

COM3: connects RS232 devices.

COM4: connects RS232 devices.

USB 2.0 & 3.1 Ports

6 USB 2.0 ports, 2 USB 3.1 Gen 1 ports and 2 USB 3.1 Gen 2 ports.

PS/2 KB/Mouse

Connects a PS/2 keyboard and mouse.

HDMI

Connects the HDMI connector of an LCD monitor.

DP++ Port

Connects the DisplayPort of an LCD monitor.

RJ45 LAN Ports

Connect the system to a local area network.

Line-out

Connects an external speaker.

Mic-in

Connects an external microphone.

Expansion slots

Provides PCIe or PCI expansion connectivity.

Gaming Section - GM901

The system that are from GM901.

Digital Input/Output

Provides 8-bit digital input/output.

Instrusion Switch x6

Provides 6 via 2x4 micro-fit connector.

NVRAM

NVRAM has longer lifecyle of data-stored due to the SRAM+ battery on FPGA.

COM 3~4

DIO

USB 2.0

HDMI

DVI-D

COM 1

LAN

DP++

PS/2, KB/

USB 3.1

Gen 1

Intrusion Switch

x 6

Mic-in

Line-out

Expansion

Slots

USB 3.1

Gen 2

10User's Manual | GM831-CSF

Chapter 1

Introduction

312.00

275.00

2.00

301.00

17.00

80.00

120.00

160.00

210.00

250.00

285.00

296.43

140.00

146.30

Right View

Back View

Left View

Front View

Mechanical Dimensions

Chassis Dimension (without Power Supply)

Top View

11User's Manual | GM831-CSF

Chapter 1

Introduction

Mechanical Dimensions

Chassis Dimension (with Power Supply)

325.00

275.00

285.00

296.43

351.00

362.00

140.00

144.00

112.40

118.70

Front View

Left View Right View

Top View

Back View

12User's Manual | GM831-CSF

Chapter 2

Getting Started

Preparing the System

Before you start using the system, you might need the following items:

• Power Supply (PSU)

Installing Device

The following devices should be installed in the system.

• Power Supply (PSU)

Configuring the BIOS

To get you started, you may need to change configurations such as the date, time and the

priority of boot devices.

1. Power on the system.

2. After the memory test, the message “Press DEL to run setup” will appear on the screen.

Press the Delete key to enter the BIOS setup utility.

Installing a Operating System

Please refer to your operating system manual for instructions on installing an operating sys-

tem.

Installing the Drivers

The system comes with a software package including drivers. These drivers must be installed

to provide the best system performance. Refer to the Supported Software Chapter for instruc-

tions on installing drivers.

Chapter 2 - Getting Started

13User's Manual | GM831-CSF

Chapter 3

Installing Device

Chapter 3 - Installing Devices

Removing the Chassis Cover

Please observe the following guidelines before opening the chassis cover:

2. Disconnect all power cords and cables.

3. The mounting screw on the rear side of the system compartment is used to secure the cover

to the chassis. Remove this screw and put it in a safe place for later use.

4.U se the key (push it down slightly and turn it counterclockwise) to unlock the system com-

partment cover.

5. Slide the cover backward to open the chassis cover.

Installing a 2.5" SATA Drive

Mounting screws (step screws)

The system can accommodate one 2.5” HDDs.

1. To install a 2.5" HDD, use the 2.5" HDD bracket as shown below. Align the mounting holes

on t he S ATA drive w ith the mounting holes on t he HDD b racket a nd use t he m ounting

screws provided in the drive bay kit to secure the drive in place.

SATA drive

HDD bracket

Mounting screw

2. Place t he HDD b racket w ith the installed SATA drives back i nto the chassis and use t he

provided m ounting screws t o attach t he HDD b racket t o the drive b ay. Use the provided

mounting screws to attach the HDD bracket to the drive bay.

Mounting Screws

Mounting Screw

Chapter 3 - Installing Devices

SATA Drive

Mounting

screw

HDD Bracket

14User's Manual | GM831-CSF

Chapter 3

Installing Device

3. Connect the SATA data cable to the SATA drive.

SATA power/data cable

SATA connector

Connecting the PSU

The PSU is an optional item of GM831-CSF for the power supply solution. The instruction below is

to demonstrate the process to connect the PSU to GM831-CSF.

2. Disconnect all power cords and cables.

3. Remove the

label)

4. Put all the cables from the PSU into GM831-CSF through the hole.

15User's Manual | GM831-CSF

Chapter 4

Gaming I/O Board

Chapter 4 - Gaming I/O Board

PCIe x1

Door 1 ~6

Door 7

Door 8

COM 1

PCIe x1

DO17~32

DO1~16DI17~32DI1~16

Gaming I/O Board - GM901

EXPANSION CONNECTOR 2 PCIe x1

INTERFACE 1

INTERFACE 2 (optional)

PCIe x1 gold nger

PCIe connector (36 pin)

SECURITY Security-ROM

Intrusion detection (8 doors)

VOLTAGE WATCHER Voltage monitoring and warning via MCU

Features

Expansion Slots

• 2 x PCIe x1 connector

• 1 x PCIe x1 connector/PCIe x1 via 36-pin connector (opt.)

COM Port

• RS232 via box header

Gaming IO

• Intrusion switch inputs:

- 6 via 2x4 micro-t connector

- 2 via 2-pin box headers

Digital I/O

• 32 ESD-protected inputs

• 32 ESD-protected outputs

Security ROM

• 2 x SRAM (BGA type): 64K x16, 512K x16, 1M x16, 2M x16, 4M

x16

Battery

• Battery for MCU:

- 1 x CR2032 Lithium 3V/220mAh batteries

• Battery for SRAM:

- 2 x CR2032 Lithium 3V/220mAh batteries

- 1 x 2-pin box header

Environmental

• Operating temperature:

- Operating: 0 ~ 60°C

- Storage: -40 ~ 85°C

• Operating humidity:

- Operating: 5 ~ 90% RH

- Storage: 5 ~ 90% RH

Dimension

• 170mm* 80mm

Features

16User's Manual | GM831-CSF

Chapter 4

Gaming I/O Board

FPGA

DFI Logic Processor API Description

Conguration Operation mode Provides two operations mode: Normal

mode, and Multi-mirror mode.

Read/Write SRAM data Supports four dierent access: BYTE (1

byte), WORD (2 bytes), DWORD (4

bytes), multi-bytes read/write.

CRC checksum Provides calculate specify address range of

data with CRC32.

GPIO control Provides to control GPIO output level and

input interrupt detect feature.

This section gives a high level overview the functionalities and process ow of the APIs. The fol-

lowing table outlines the names of the APIs and their usage.

MCU

The set of APIs can be categorized into 8 groups:

In Windows, the Intru-Processor API is called DFIGamingIntru.dll which accesses the serial

port with the library DFISerailPort.dll. Both of the libraries have to be together with AP in the

same folder.

In Linux, the Intru-Processor API is called DFIGamingIntru.so which accesses the serial port

with t he library DFISerailPort.so. Both of the libraries have to be put to /usr/lib.

17User's Manual | GM831-CSF

Chapter 5

Jumper Settings

I C

Battery

Chapter 5 - Jumper Settings

Clear CMOS Data

JP5

Mini PCIe/mSATA Signal Select

I C

Battery

JP9

JP9 is used to select the Mini PCIe signal: Mini PCIe (default) or mSATA.

If any anomaly of the followings is encountered —

a) CMOS data is corrupted;

b) you forgot the supervisor or user password;

c) failure to start the system due to BIOS mis-configuration

— it is suggested that the system be reconfigured with default values stored in the ROM

BIOS. To load the default values stored in the ROM BIOS, please follow the steps below.

1. Power-off the system and unplug the power cord.

2. Put a jumper cap on JP9’s pin 2 and pin 3. Wait for a few seconds and set JP9 back

to its default setting, i.e. jumper cap on pin 1 and pin 2.

3. Plug the power cord and power-on the system.

1-2 On:

Normal (default)

1 3

2-3 On:

Clear CMOS Data

1 3

2-3 On:

mSATA

1 3

1-2 On:

Mini PCIe

(default)

1 3

18User's Manual | GM831-CSF

Chapter 5

Jumper Settings

COM1/COM2 RS232/422/485 Select

I C

Battery

JP1/JP2/JP3 (for COM 1) and JP6/JP8/JP10 (for COM 2) are used to configure the COM ports

to RS232, RS422 (Full Duplex) or RS485. When COM 1 RS232/422/485 is selected, JP1 and

JP2 must be set in accordance to JP3.

When COM 2 RS232/422/485 is selected, JP6 and JP8 must be set in accordance to JP10. The

pin functions of the COM ports will vary according to the jumpers’ setting.

COM 2

COM 1

JP8 (COM 2)

JP3

(COM 1)

JP2

(COM 1)

JP6 (COM 2)

JP10 (COM 2)

JP1 (COM 1)

▼ JP3 (COM1)/JP10 (COM2)

2 3 4 5

6 7 8 9

1-3, 4-6 On:

RS232 (default)

3-5, 4-6 On:

RS422 Full Duplex

3-5, 2-4 On:

RS485

2 4 6

1 3 5

2 4

3 5

2 4 6

1 3 5

▼ JP1/JP2 (COM 1)

1-3, 2-4 On:

RS232 (default)

3-5, 4-6 On:

RS422 Full Duplex

3-5, 4-6 On:

RS485

▼ JP6/JP8 (COM 2)

2 4 6

3 5

2 4 6

3 5

2 4

3 5

1-3, 2-4 On:

RS232 (default)

3-5, 4-6 On:

RS422 Full Duplex

3-5, 4-6 On:

RS485

2 4

1 3 5

3 5

Pins RS232 RS422 RS485

1 DCD- RX+ DATA+

2 SIN- RX- DATA-

3 SO- TX+ NC

4 DTR- TX- NC

5 GND GND GND

6 DSR- NC NC

7 RTS- NC NC

8 CTS- NC NC

9 RI- NC NC

19User's Manual | GM831-CSF

Chapter 5

Jumper Settings

COM1/COM2 RS232 Power Select

JP7 (COM 2)

I C

Battery

COM 2

COM 1

JP4 (COM 1)

JP4 (for COM 1) and JP7 (for COM 2) are used to configure Serial COM ports to pure RS232

or RS232 with power. The pin functions of COM 1 and COM 2 will vary according to JP4’s and

JP7’s setting respectively.

2 3 4 5

6 7 8 9

▼ JP4 (COM 1)

1-3 (RI-), 2-4 (DCD-) On:

RS232 (default)

3-5 (+5V), 4-6 (+12V) On:

RS232 with power

▼ JP7 (COM 2)

2 4

3 5

1-3 (RI-), 2-4 (DCD-) On:

RS232 (default)

3-5 (+5V), 4-6 (+12V) On:

RS232 with power

2 4

3 5

COM1/COM2 RS232 Power Select

Pins RS232 RS232 with power

1 DCD- +12V

2 SIN- SIN-

3 SO- SO-

4 DTR- DTR-

5 GND GND

6 DSR- DSR-

7 RTS- RTS-

8 CTS- CTS-

9 RI- +5V

20User's Manual | GM831-CSF

Chapter 5

Jumper Settings

PS/2 Power Select USB Power Select

JP20 is designed to select the PS/2 power: +5VDU (default) or +5V.

I C

Battery

JP20

2-3 On:

+5V

1-2 On:

+5VDU (default)

JP15, JP16, JP17, JP18, JP19 and JP21 are used to select the power of the USB ports. Select-

ing +5VDU will allow you to use a USB device to wake up the system.

2-3 On: +5V

1-2 On:

+5VDU (default)

I C

Battery

USB 2.0 5-6

(JP21)

USB 3.1 1-2

(JP15)

USB 3.1 5-6

(JP19)

1-2 On:

+5VDU (default)

1-2 On:

+5VDU (default)

2-3 On: +5V

1-2 On:

+5VDU (default)

31 2

USB 3.1 3-4

(JP16)

1-2 On:

+5VDU (default)

2-3 On: +5V

USB 2.0 9-10

(JP18)

1-2 On:

+5VDU (default)

2-3 On: +5V

USB 2.0 7-8

(JP17)

3 12

31 2

Important:

If you are using the Wake-On-USB Keyboard/Mouse function for 2 USB ports, the +5V_standby

power source of your power supply must support ≥1.5A. For 3 or more USB ports, the +5V_

standby power source of your power supply must support ≥2A.

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DFI GM831-CSF Owner's manual

Brand: DFI

Model: GM831-CSF

Category: Motherboards

Type: Owner's manual

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DFI GM831-CSF Owner's manual

DFI GM831-CSF Owner's manual

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