DFI RM641 Owner's manual

Brand: DFI

Model: RM641

Category: Server/workstation motherboards

Type: Owner's manual

This manual is also suitable for

RM641-SD

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Chapter 1 Introduction

RM641-SD

Desktop Box PC

User’s Manual

A44010952

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Chapter 1 Introduction

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 A 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.

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Chapter 1 Introduction

Table of Contents

Trademarks

....................................................... 2

FCC and DOC Statement on Class A

...... 2

About this Manual

.......................................... 4

Warranty

......................................................... 4

Static Electricity Precautions

........................ 4

Safety Measures

............................................... 4

Safety Precautions

........................................... 5

Chapter 1 - Introduction

.............................. 6

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

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

Getting to Know the RM641-SD ................................................8

Chapter 2 - Getting Started........................10

Preparing the System .............................................................10

Installing Devices ...................................................................10

Configuring the BIOS .............................................................10

Installing the Operating System .............................................. 10

Installing the Drivers ..............................................................10

Chapter 3 - Installing the Device...............11

Removing the Chassis Cover ...................................................11

Installing the SATA Drive

........................................................11

Installing the DIMM module ...................................................13

Installing the CPU

.................................................................. 13

Installing the fan and heat sink

..............................................15

Installing the PCI/PCIe expansion card

...................................16

Chapter 4 - Jumper Settings.......................17

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

Power-on Select .....................................................................17

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

COM1/COM2 RS232/Power Select

...........................................19

Chapter 5 - Ports and Connectors...........20

Front Panel I/O Ports .............................................................20

Rear Panel I/O Ports ..............................................................21

I/O Connectors ...................................................................... 25

Chapter 6 - BIOS Setup...............................30

Overview ..............................................................................30

Insyde BIOS Setup Utility ....................................................... 31

Main ....................................................................................... 31

Advanced

............................................................................... 31

Security

.................................................................................. 39

Boot

....................................................................................... 40

Exit

........................................................................................ 42

Updating the BIOS .................................................................43

Notice: BIOS SPI ROM

...........................................................43

Chapter 7 - Supported Software...............44

Chapter 8 - RAID .........................................62

Chapter 9 - Intel AMT Settings .................66

Appendix A - System Error Message.........79

Appendix B - Troubleshooting Checklist..80

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Chapter 1 Introduction

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 find all technical documents including the user’s manual for a specific product.

Warranty

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

inability 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 consequencial damages to the

product that has been modified or altered.

Static Electricity Precautions

It is quite 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

components without causing any signs of physical damage. You must take extra care in han-

dling 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 AC input voltage range.

To reduce the risk of electric shock:

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

servicing. 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.

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.

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Chapter 1 Introduction

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.

• 1 RM641 system unit

• 1 SATA Cable

• 1 Quick Installation Guide

Safety Precautions

• Use the correct DC input voltage range.

• 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.

• 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.

• 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.

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Chapter 1 Introduction

Chapter 1 - Introduction

Chapter 1

Overview

Key Features

Model Name RM641-SD

Processor 6th generation Intel

Core

processors

Chipset Intel® Q170 Chipset

LAN 2 LAN ports

COM 1 COM port

Display 1 HDMI, 1 VGA, DVI-I (DVI-D signal)

USB 2 USB 2.0 ports at the rear panel I/O ports;

4 USB 3.0 ports at the rear panel I/O ports

Audio Realtek ALC888S-VD2-GR

Front View

Rear View

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Chapter 1 Introduction

Specifications

Processor System

Processor LGA 1151 Socket

6th Generation Intel

Core™ Processors

Intel

Core

™

i7-6700 Processor, Quad Core, 8M Cache, 3.4GHz (4.0GHz), 65W

Intel

Core

™

i7-6700TE Processor, Quad Core, 8M Cache, 2.4GHz (3.4GHz), 35W

Intel

Core

™

i5-6500 Processor, Quad Core, 6M Cache, 3.2GHz (3.6GHz), 65W

Intel

Core

™

i5-6500TE Processor, Quad Core, 6M Cache, 2.3GHz (3.3GHz), 35W

Intel

Core

™

i3-6100 Processor, Dual Core, 3M Cache, 3.7GHz, 47W

Intel

Core

™

i3-6100TE Processor, Dual Core, 4M Cache, 2.7GHz, 35W

Intel

Pentium

Processor G4400, Dual Core, 3M Cache, 3.3GHz, 47W

Intel

Pentium

Processor G4400TE, Dual Core, 3M Cache, 2.4GHz, 35W

Chipset

Intel

Q170 Chipset

Memory Four 288-pin DIMM up to 64GB; Dual Channel DDR4 1866/2133MHz

BIOS Insyde SPI 128Mbit

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 VGA (resolution up to 1920x1200 @ 60Hz

1 x DVI-I (DVI-D signal, resolution up to 1920x1200 @ 60Hz)

1 x HDMI ( resolution up to 4096x2160 @ 24Hz)

Triple

Displays

VGA + DVI-I (DVI-D signal) + HDMI

Storage

3 x 5.25" Optical Drive Bays (Front Accessible)

1 x 3.5"/2.5" SATA 3.0 Drive Bay (Front Accessible)

EXPANSION Interface 2 PCIe x16 (1 x16 or 2 x8 signal) (Gen 3)

2 PCIe x4 (Gen 3)

3 PCI

AUDIO Audio

Codec

Realtek ALC888S-VD2-GR

Ethernet

Controller 1 x Intel

I210AT PCIe (10/100/1000Mbps)

1 x Intel

I219LM PCIe with iAMT11.0 (10/100/1000Mbps)

(only Core i7/i5 supports iAMT)

LED Indicators 1 x Power LED

1 x HDD LED

Front I/O

USB

2 x USB 2.0 (available upon request)

Front

Door

1 x Drive Panel Door With Keylock

Buttons 1 x Power Switch

1 x Reset Switch

Chapter 1

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

Serial 1 x RS-232/422/485 (RS-232 w/ power) (DB-9)

USB 4 x USB 3.0

2 x USB 2.0

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

Display 1 x VGA

1 x DVI-I (DVI-D signal)

1 x HDMI

Audio 1 x Line-in (available upon request)

1 x Line-out

1 x Mic-in

Buttons 1 x ATX Switch

Cooling Fan

2 x 92cm System Fan with Quick Access Filter

WATCHDOG

TIMER

Output & Interval System Reset, Programmable via Software from 1 to 255

Seconds

POWER Supply

ATX PS/2 Power Supply 500W

AC Power Input : 90~264V

OS SUPPORT Windows 7 (/WES7) 32/64-bit

Windows 8.1 (64-bit)

Windows 10 IoT Enterprise 64-bit

Debian 8 (with VESA graphic driver)

CentOS 7 (with VESA graphic driver)

Ubuntu 15.10 (Intel graphic driver available)

MECHANISM

Construction

SECC

Mounting

Flexible Hold Down Bar

Dimensions ( W x H x D)

483mm x 177mm x 451mm

Weight

TBD

ENVIRONMENT

Operating Temperature 0 to 45°C

Storage Temperature -20 to 60°C

Relative Humidity 0 to 90% RH (non-condensing)

STANDARDS AND

CERTIFICATIONS

Shock

Operating: 3G Non-operating: 3G

Vibration

Operating: Random 5~500Hz 1G Non-operating:

Sweep Sine 10~500Hz 1.5G

Package Drop

ISTA Project 1A

Certication

TBD

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Chapter 1 Introduction

Getting to Know the RM641-SD

Chapter 1

Front View

Power Button

Press to power on or power off the system.

Reset Button

Press to reset the system.

Power LED

Indicates the power status of the system.

HDD LED

Indicates the status of the hard drive.

USB Ports

Used to connect USB 2.0/1.1 devices.

Rear View

DC-in jack

Used to plug a power adapter.

Keyboard/mouse

Used to connect to a PS/2 keyboard or mouse

COM Port

Used to connect serial devices.

VGA Port

Used to connect to a VGA display.

DVI-I

Used to connect to a DVI-I display (DVI-D signal).

HDMI Port

Used to connect a HDMI device.

USB 2.0 and 3.0 Ports

Used to connect USB 2.0/3.0 devices.

LAN 1-2 Ports

Used to connect the system to a local area network.

Line-out jack

Used to connect to a speaker.

Mic-in jack

Used to connect to a microphone.

Power LED

USB 2.0

Reset

Power

HDD LED

keyboard/mouse

USB 2.0

LAN 1-2

USB 3.0

Line-out

Mic-in

DVI-I

VGA

COM

HDMI

DC-in Jack

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Chapter 1 Introduction

451.2

429.80

173.60

H.D.D.

POWER

RESET

482.60

464.60

177.00

101.60

37.70

92.0092.0092.00120.00

Mechanical Dimensions

Chassis Dimensions

Motherboard Dimensions

Chapter 1

Front View

Rear View

0.00

227.33

93.99

46.94

154.94

144.25

187.28

0.00

78.74

124.46

281.94

0.00

124.46

281.94

169.55

244.56

58.42

126.03

105.71

85.40

65.07

44.75

24.43

4.11

22.86

75.29

150.29

154.94

227.33

233.68

10.16

108.46

77.98

276.22

250.48

183.87

161.37

142.20

214.26

167.08

174.85

185.28

194.68

139.25

277.20

253.37

288.29

16.51

I C

Battery

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Chapter 2 Getting Started

Chapter 2 - Getting Started

Chapter 2

Preparing the System

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

• AC power adapter

• CD-ROM drive (for installing software/drivers)

Installing Devices

The following are devices that can be installed in the system.

• Memory module

• CPU

• SATA hard drive

• PCI/PCIe expansion card

Configuring the BIOS

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

type of hard disk drive.

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 AMI BIOS setup utility.

Installing the Operating System

Most operating system software can be installed using a DVD (and DVD burner) or bootable

USB drive.

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

Installing the Drivers

The system requires you to install drivers for some devices to operate properly. Refer to the

Supported Software chapter for instructions on installing the drivers.

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Chapter 3 Installing the Device

Chapter 3

Chapter 3 - Installing the Device

Removing the Chassis Cover

1. Make sure the system and all other peripheral devices connected to it have been powered-off.

2. Disconnect all power cords and cables.

3. Remove the 2 mounting screws to open the top cover.

Installing the SATA Drive

1. Unfasten the 4 mounting screws that secure HDD bracket to the system.

Chassis

screw

4. The DIMM sockets are readily accessible after removing the chassis cover.

DIMM socket

2. Align the mounting holes of the SATA drive with the mounting holes on the HDD brackets and

then use the mounting screws to secure the drive in place.

SATA drive

Mounting screw

HDD bracket

Mounting screw

HDD bracket

Chassis

screw

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Chapter 3 Installing the Device

Chapter 3

3. Connect the SATA data cable and the SATA power cable to the connectors on the SATA drive. 4. Secure the HDD bracket back to the system.

SATA port

Mounting screw

SATA power and

data connector

Note:

The system can accommodate 4 disks (3.5” or 2.5”). However, 3.5” to 5.25” or 2.5”

to 5.25” drive mounting bracket adapters will be required to install HDDs in the

optical bays.

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Chapter 3 Installing the Device

Chapter 3

Installing the DIMM module

1. The DIMM socket is located on the system board. Note the key on the socket. The key en-

sures that the memory module can be plugged into the socket in one direction only.

DIMM socket

Installing the CPU

1. Make sure the PC and all other peripheral devices connected to it has been powered down.

2. Disconnect all power cords and cables.

3. Locate the LGA 1151 CPU socket on the system board.

CPU socket

Important:

1. Before you proceed, make sure (1) the LGA 1151 socket comes with a protective

cap, (2) the cap is not damaged and (3) the socket’s contact pins are not bent. If

the cap is missing or the cap and/or contact pins are damaged, contact your dealer

immediately.

2. Make sure to keep the protective cap. RMA requests will be accepted and pro-

cessed only if the LGA 1151 socket comes with the protective cap.

Protective Cap

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Chapter 3 Installing the Device

Chapter 3

4. Unlock the socket by pushing the load lever down, moving it sideways until it is released

from the retention tab; then lift the load lever up.

Retention tab

Load lever

5. Lift the load lever to lift the load plate. Lift the load lever up to the angle shown on the

photo.

7. Insert the CPU into the socket. The gold triangular mark on the CPU must align with the

corner of the CPU socket shown on the photo.

Gold triangular mark

Important:

The CPU will fit in only one orientation and can easily be inserted without exerting

any force.

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Chapter 3 Installing the Device

Chapter 3

The CPU must be kept cool by using a CPU fan with heat sink. Without sufficient air circula-

tion across the CPU and heat sink, the CPU will overheat damaging both the CPU and system

board.

1. Before you install the fan / heat sink, you must apply a thermal paste onto the top of the

CPU. The thermal paste is usually supplied when you purchase the fan / heat sink assem-

bly. Do not spread the paste all over the surface. When you later place the heat sink on

top of the CPU, the compound will disperse evenly.

Some heat sinks come with a patch of pre-applied thermal paste. Do not apply thermal

paste if the fan / heat sink already has a patch of thermal paste on its underside. Peel

the strip that covers the paste before you place the fan / heat sink on top of the CPU.

2. Place the heat sink on top of the CPU. The 4 push-pins around the heat sink, which are

used to secure the heat sink onto the system board, must match the 4 mounting holes

around the socket.

Installing the fan and heat sink

Note:

A boxed Intel

processor already includes the CPU fan and heat sink assembly. If your

CPU was purchased separately, make sure to only use Intel

-certified fan and heat

sink.

4. Rotate each push-pin according to the direction of the arrow shown on top of the pin.

Push down two pushpins that are diagonally across the heat sink. Perform the same proce-

dure for the other two push-pins.

5. Connect the CPU fan’s cable to the CPU fan connector on the system board.

CPU Fan connector

Heat sink

“Locked” position of

push-pin

“Unlocked” position

of push-pin

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Chapter 3 Installing the Device

Chapter 3

Installing the PCI/PCIe expansion card

1. Make sure the PC and all other peripheral devices connected to it has been powered

down.

2. Disconnect all power cords and cables.

3. Take off the card bracket secured on the system’s chassis.

4. Install the PCIe expansion card on the system.

5. Secure the PCIe expansion card to the system with the screws.

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Chapter 4 Jumper Settings

Chapter 4

Chapter 4 - Jumper Settings

Clear CMOS Data

Power-on Select

2-3 On:

Clear CMOS Data

1-2 On: Normal

(default)

31 2

I C

Battery

JP9

JP10

I C

Battery

1-2 On:

Power-on via power button

(default)

2-3 On:

Power-on via AC power

1 32

JP10 is used to select the method of powering on the system. If you want the system to

power-on whenever AC power comes in, set JP10 pins 2 and 3 to On. If you want to use the

power button, set pins 1 and 2 to On.

When using JP10 “Power-On” feature to power the system back on after a power failure

occurs, the system may not power on if the power lost is resumed within 5 seconds (power

flicker).

If you encounter the followings,

a) CMOS data becomes corrupted.

b) You forgot the supervisor or user password.

you can reconfigure the system with the 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. Set JP9 pins 2 and 3 to On. Wait for a few seconds and set JP9 back to its default setting,

pins 1 and 2 On.

3. Now plug the power cord and power-on the system.

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Chapter 4 Jumper Settings

Chapter 4

COM1/COM2 RS232/422/485 Select

I C

Battery

JP7

JP5

COM 1

COM 2

JP2

JP1

JP3

JP6

JP5 (for COM1) and JP1 (for COM2) are used to configure the COM ports to RS232, RS422

(Full Duplex) or RS485. The pin functions of the COM ports will vary according to the jumper’s

setting.

JP5 (COM 1)

1-2 On: RS232

(default)

1 3

2 4 6

3-4 On: RS422

Full Duplex

5-6 On: RS485

JP1 (COM 2)

1-2 On: RS232

(default)

2 4 6

3-4 On: RS422

Full Duplex

5-6 On: RS485

1 3 5

2 4 6

1 3 5

2 4 6

RS232

RS422

Full Duplex

RS485

COM 1

DCD-

DTR-

GND

2 3 4 5

RTS-

RI-

DSR-

CTS-

6 7 8 9

RXD+

TXD+

RXD-

TXD-

N.C.

1 2 3 4 5

6 7 8 9

N.C.

DATA+

DATA-

N.C.

6 7 8 9

1 2 3 4 5

N.C.

COM 2

JP6/JP7 (COM 1)

1-3, 2-4 On:

RS232 (default)

3-5, 4-6 On:

RS422 Full Duplex/RS485

RS232

RXDDCD-

TXD DTR-

GND

DSR-

RTS-

CTS-

RI-

RS422

Full Duplex

RXD-RXD+

TXD+

TXD-

NC.

RS485

DATA-DATA+

NC.

1 3 5

2 4 6

1 3 5

2 4 6

JP2/JP3 (COM 2)

1-3, 2-4 On:

RS232 (default)

3-5, 4-6 On:

RS422 Full Duplex/RS485

4 6

Note:

1. When COM 1 RS232/422/485 is selected, JP6 and JP7 must be set in accordance

to JP5.

2. When COM 2 RS232/422/485 is selected, JP2 and JP3

must be set in accordance to JP1.

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Chapter 4 Jumper Settings

Chapter 4

COM1/COM2 RS232/Power Select

I C

Battery

JP8

JP4

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

RS232 (default)

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

RS232 with power

1 3

2 4 6

1 3 5

2 4 6

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

RS232 (default)

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

RS232 with power

JP8 (for COM 1) and JP4 (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 JP8’s and

JP4’s setting respectively.

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Chapter 5 Ports and Connectors

Chapter 5

Chapter 5 - Ports and Connectors

Front Panel I/O Ports

The front panel I/O consists of 2 USB 2.0 ports

USB Ports

The USB device allows data exchange between your computer and a wide range of simultane-

ously accessible external Plug and Play peripherals.

• BIOS Setting

Configure the onboard USB in the Advanced menu (“USB Configuration” submenu) of the

BIOS. Refer to chapter 7 for more information.

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.

Wake-On-USB Keyboard/Mouse

The Wake-On-USB Keyboard/Mouse function allows you to use a USB keyboard or USB mouse

to wake up a system from the S3 (STR - Suspend To RAM) state. To use this function:

• Jumper Setting

JP25 must be set to “2-3 On: +5V_standby”. Refer to “USB Power Select” in chapter 4 for

more information.

USB 2.0

Power LED

HDD LED

USB 2.0

Power

Reset

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DFI RM641 Owner's manual

Brand: DFI

Model: RM641

Category: Server/workstation motherboards

Type: Owner's manual

This manual is also suitable for

RM641-SD

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DFI RM641 Owner's manual

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