TYAN Transport TX46 (B4881, B4881 Service Manual

Transport TX46

B4881

Service Engineer’s Manual

2

PREFACE

Copyright

This publication, including all photographs, illustrations, and soft­ware, is protected under international copyright laws, with all rights
reserved. Neither this manual, nor any material contained herein,
may be reproduced without written consent of the manufacturer-.

Copyright 2005

Version 1.0

Disclaimer

Information contained in this document is furnished by TYAN Com­puter Corporation and has been reviewed for accuracy and reliability
prior to printing. TYAN assumes no liability whatsoever, and dis­claims any express or implied warranty, relating to sale and/or use of
TYAN products including liability or warranties relating to fitness for
a particular purpose or merchantability. TYAN retains the right to
make changes to product descriptions and/or specifications at any
time, without notice. In no event will TYAN be held liable for any
direct or indirect, incidental or consequential damage, loss of use,
loss of data or other malady resulting from errors or inaccuracies of
information contained in this document.

Trademark Recognition

All registered and unregistered trademarks and company names
contained in this manual are property of their respective owners
including, but not limited to the following.

TYAN and Transport TX46 are trademarks of TYAN Computer Cor­poration.

AMD, Opteron, and combinations thereof are trademarks of
Advanced Micro Devices Corporation.

Phoenix BIOS is a trademarks of Phoenix Technologies.

Winbond is a trademark of Winbond Electronics Corporation.

Broadcom is a trademark of Broadcom Corporation and/or its sub­sidiaries.

ATI and Rage Xl are trademarks of ATI Corporation.

nVIDIA is a trademark of NVIDIA Corporation.

ii

Federal Communications Commission (FCC)

Notice for the USA Compliance Information State-

ment (Declaration of Conformity Procedure) DoC FCC
Part 15: This device complies with part 15 of the FCC
Rules

Operation is subject to the following 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. 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
encouraged to try one or more of the following measures:

– Reorient or relocate the receiving antenna.
– Increase the separation between the equipment and the

receiver.

– Plug the equipment into an outlet on a circuit different from

that of the receiver.

Consult the dealer on an experienced radio/television technician for
help.

Notice for Canada

This apparatus complies with the Class B limits for radio interference
as specified in the Canadian Department of Communications Radio
Interference Regulations. (Cet appareil est conforme aux norms de
Classe B d’interference radio tel que specifie par le Ministere Cana­dien des Communications dans les reglements d’ineteference
radio.)

Notice for Europe (CE Mark) This product is in conformity
with the Council Directive 89/336/EEC, 92/31/EEC
(EMC).

CAUTION: Lithium battery included with this board. Do not punc­ture, mutilate, or dispose of battery in fire. Danger of explosion if bat­tery is incorrectly replaced. Replace only with the same or
equivalent type recommended by manufacturer. Dispose of used
battery according to manufacturer instructions and in accordance
with your local regulations.

iii

About this Manual

This manual provides you with instructions on installing your
Transport TX46. This manual is intended for experienced users and
integrators with hardware knowledge of personal computers.

This manual consists of the following parts

Chapter 1: Provides an Introduction to the Transport TX46

B4881 barebone, packing list, describes the
external components, gives a table of key compo­nents, and provides block diagrams of the system.

Chapter 2: Covers procedures on installing the CPU, mem-

ory module, PCI-X card, and hard drive.

Chapter 3: Covers removal and replacement procedures for

p r e - i n s t a l l e d c o m p o n e n t s .

For information on the mainboard, please refer to the attached main­board user’s manual. You can find the detailed description about
jumper and BIOS settings from the motherboard manual.

iv

Safety Information

Before installing and using the Transport TX46, take note of the fol­lowing precautions:

– Read all instructions carefully.
– Do not place the unit on an unstable surface, cart, or stand.
– Do not block the slots and opening on the unit, which are pro-

vided for ventilation.

– Only use the power source indicated on the marking label. If

you are not sure, contact the Power Company.

– 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
your obsolete outlet.

– Do not place anything on the power cord. Place the power

cord where it will not be in the way of foot traffic.

– Follow all warnings and cautions in this manual and on the

unit case.

– Do not push objects in the ventilation slots as they may touch

high voltage components and result in shock and damage to
the components.

– When replacing parts, ensure that you use parts specified by

the manufacturer.

– When service or repairs have been done, perform routine

safety checks to verify that the system is operating correctly.

– Avoid using the system near water, in direct sunlight, or near

a heating device.

– Cover the unit when not in use.

Chapter 1: Overview 1

Chapter 1: Overview

1.1 About the Transport TX46 (B4881)

Congratulations on your purchase of the TYAN TransportTM
TX46 (B4881), a highly-optimized rack-mountable barebone
system. The Transport TX46 (B4881) offers the latest proces­sor server system, providing a rich feature set and incredible

performance. Leveraging advanced technology from AMD

®

,
the Transport TX46 (B4881) server system is capable of
offering scalable 32-bit & 64-bit computing, high-bandwidth
memory design, and a lightning-fast PCI-X & PCI-E bus

implementation. The Transport

TM

TX46 (B4881) not only
empowers your company in today’s demanding IT environ­ment but also offers a smooth path for future application
usage.

TYAN is also proud to deliver the Transport

TM

TX46 (B4881)
in SATA flavor while supporting up to two hard drives, one
slim CD-ROM and one optional slim floppy disk drive (not

included). The Transport

TM

TX46 (B4881) uses TYAN’s latest

tooling-made chassis featuring a robust structure and a solid

mechanical enclosure. All of this provides the Transport

TM

TX46 (B4881) the power and flexibility to meet the needs of
nearly any server application.

1.2 Features

2 Chapter 1: Overview

1.2 Features

Processors

• (4) mPGA 940-pin ZIF socket

• Supports up to four AMD

®

Opteron™ 800 series processors

• (4) onboard 3-phase VRMs

• 128 bit DDR dual channel memory
controller integrated into CPU

Memory

• Total sixteen 184-pin 2.5V DDR
DIMM sockets (4 for each CPU)

• Support up to 64GB registered DDR
400/333/266 SDRAM support

Chipset

• NVIDIA CrushK8-04 Professional

• AMD-8111™ HyperTransport I/O
Hub

• Winbond W83627HF Super I/O chip

• (3) Analog Devices ADT7468 Hard­ware Monitoring IC

BIOS

• Phoenix BIOS with 8MB LPC Flash
ROM

• ACPI 2.0 support

• Serial Console Redirect

• USB boot support

• 48-bit LBA support

• Power management: S0, S1, S4 and
S5

Device Bay

• Two HDD bays, fixed type

• Slim CD-ROM, IDE interface

• Optional slim 1.44MB FDD

Chassis

• Industry standard, 19-inch rack
mountable, 2U chassis

• Dimensions
(H)x(W)x(D)=3.5”x17.25”x28”
(89x436x713mm)

Back I/O ports

• Stacked PS/2 mouse and keyboard
ports

• (2) USB 2.0 connectors in rear panel

• (1) 9-pin serial Port

• (1) 15-pin VGA port

• (2) RJ-45 LAN port

Power supply

• Single 2U 850W A/C power supply
w/PFC

• Voltage: 90~264 VAC full range

Front Panel Features

•I/O

- (2) USB 2.0 ports

•LED indicators

- Power LED

- (2) LAN LED

- HDD active LED

- ID LED

• Switches

- Power switch

- Reset switch

- ID LED switch

•

Expansion slots

• (2) x16 PCI Express Slots, one with
x4 signal

• (2) independent 64-bit PCI-X bus

• (1) 64-bit 133MHz (3.3V) PCI-X slot

• (2) 64-bit 100MHz (3.3V) PCI-X slot

• Supports a total of (5) PCI-E/PCI-X
low profile cards

1.2 Features

Chapter 1: Overview 3

Intelligent Platform Management

• Optional Tyan Server Management
Daughter card

Regulatory

• FCC Class B
(declaration of conformity)

• CE (declaration of conformity)

Environment

• Operating: 5

o

C~35oC

• Non-operating: -40

o

C ~ 70oC

1.3 Unpacking

4 Chapter 1: Overview

1.3 Unpacking

1.3.1 Box contents

This section describes the TX46 package contents and
accessories.

Component Description

Industry standard 2U chassis, (2) fixed HDD
bays

Tyan Thunder K8QW S4881 motherboard
(pre-installed)

24x slim CD-ROM drive (pre-installed)

LED and USB control board (pre-installed)

EPS 12V 850W PSU (pre-installed)

(4) Fans (80 mm x 80 mm)

1.3 Unpacking

Chapter 1: Overview 5

1.3.2 Accessories

2x Mounting Ears 4x CPU Heat Sinks with Fans

2x Sliding Rails

2x Power Cables

2x Screws Kit

Left: Transport TX46 (B4881) Service
Engineer’s Manual
Right: Thunder K8QW (S4881) User’s
Manual

SATA HDD Power Cable

CD-ROM

Diskette

1.3 Unpacking

6 Chapter 1: Overview

1.3.3 Opening the box

Open the box carefully and ensure that all components are
present and undamaged. The product should arrive pack­aged as illustrated below.

Contact your distributor if anything is missing or appears
damaged.

Packaged box contents

Packaged accessories

1.4 About the product

Chapter 1: Overview 7

1.4 About the product

This section contains hardware diagrams and a block dia­gram of the TX46 (B4881) system.

1.4.1 System front view

See the diagram below for details of the front panel indicators
and switches.

1.4.2 System rear view

Reset button

Power button

ID button

Power indicator

Internal HDD trays

LAN indicator

ID indicator

HDD indicator

USB ports

Slim CD-ROM driveSlim type FDD bay

(Pre-installed)

AC in socket
Stacked PS/2 mouse and

keyboard ports
USB ports

GbE ports

VGA port

Serial Port

ID LED

1.4 About the product

8 Chapter 1: Overview

1.4.3 System internal view

1 Memory Slots 2 CPU Sockets

3 System Fans 4 CD-ROM Cable

5 Slim Type CD-ROM Drive Bay 6 LED Control Board

7 Slim Type Floppy Drive Bay 8 Power Supply

9 SATA Cables 10 PCI-X/PCI-E Slots

1

2

3

4

6

8

5

10

9

7

1.4 About the product

Chapter 1: Overview 9

1.4.4 Mainboard layout

1.4 About the product

10 Chapter 1: Overview

Jumpers & Connectors

Jumper

/Connector

Function

J115 Front Panel Connector

J20 Clear CMOS Jumper

J1 SMBus Connector

J30, J31, J95 USB 2.0 Header

JP2 Chassis Intrusion Header

J101 Serial Port Internal Header

J11 PCI-X Channel A Frequency Configuration Jumper

J12 PCI-X Channel B Frequency Configuration Jumper

JP1 Wake on Ring PIN Header

JP4, JP5 Gigabit LAN1, LAN2 LED Header

J27, J28 IEEE 1394A Pin Header

J118 / J119 ID Switch / ID LED

J22 NMI (non-maskable interrupt) Header

J117/J116/J108/J
109

CPU Fan Connector

J103/J104/J105/J
106/J107/J110

Chassis 4-Pin Fan Connectors

J111/J112 Chassis 3-Pin Fan Connectors

LPT CON Parallel Header

PWR3 ATX 12V Power Connector

PWR4 1x4-Pin 5V Power Connector

Chapter 2: Setting up 11

Chapter 2: Setting up

2.1 Before you begin

This chapter explains how to install motherboard components
including CPUs, memory modules, and PCI cards. There are
also instructions in this section for installing SATA, SCSI, and
IDE hard drives.

Careful attention should be given to the precautions men­tioned in this section when setting up your system.

2.1.1 Work area

Make sure you have a stable, clean working environment.
Dust and dirt can get into components and cause malfunc­tions. Use containers to keep small components separated.
Putting all small components in separate containers prevents
them from becoming lost. Adequate lighting and proper tools
can prevent you from accidentally damaging the internal
components.

2.1.2 Tools

The following tools will be required to complete the installa­tions described in this chapter.

• A cross head (Phillips) screwdriver

• A grounding strap and/or anti static pad

Most of the electrical and mechanical connectors in your sys­tem can be disconnected using your fingers. It is recom­mended that you do not use needle-nosed pliers to remove
connectors as these can damage the soft metal or plastic
parts of the connectors.

2.1 Before you begin

12 Chapter 2: Setting up

2.1.3 Precautions

Components and electronic circuit boards can be damaged
by static electricity. Working on a system that is connected to
a power supply can be extremely dangerous. Follow the
guidelines below to avoid damage to the Transport TX46 or
injury to yourself.

• Disassembly of this system should only be attempted

by experienced engineers.

• Ground yourself properly before removing the top

cover of the system. Unplug the power from the
power supply and then touch a safely grounded
object to release static charge (i.e. power supply
case). If available, wear a grounded wrist strap. Alter­natively, discharge any static electricity by touching
the bare metal chassis of the unit case, or the bare
metal body of any other grounded appliance.

• Avoid touching motherboard components, IC chips,

connectors, memory modules, and leads.

• The motherboard is pre-installed in the system.

When removing the motherboard, always place it on
a grounded anti-static surface until you are ready to
reinstall it.

• Hold electronic circuit boards by the edges only. Do

not touch the components on the board unless it is
necessary to do so. Do not flex or stress circuit
boards.

• Leave all components inside the static-proof packag-

ing that they ship with until they are ready for installa­tion.

• After replacing optional devices, make sure all

screws, springs, or other small parts are in place and
are not left loose inside the case. Metallic parts or
metal flakes can cause electrical shorts.

• Always use the correct size screws and fixings when

installing or replacing components.

2.2 Installing motherboard components

Chapter 2: Setting up 13

2.2 Installing motherboard components

This section describes how to install CPUs, memory mod­ules, and PCI cards in the Transport TX46.

2.2.1 Removing the chassis cover

Follow these instructions to remove the TX46 chassis cover.

1. Pull up the two retaining clips.

2. Lift off the cover.

3. The cover is removed.

2.2 Installing motherboard components

14 Chapter 2: Setting up

2.2.2 Installing CPUs

This section describes how to install AMD Opteron proces­sors and heat sinks in your TX46 system.

NOTE: The system supports up to four CPUs. CPU0 must be
installed first followed by CPU 1, 2, and 3.

1. Remove the chassis cover as described in section 2.2.1
Removing the chassis cover.

2. Locate the processor sockets on the motherboard.

3. Lift the locking lever as shown.

CPU3

CPU1

CPU2

CPU0

2.2 Installing motherboard components

Chapter 2: Setting up 15

4. Place the processor in the socket, making sure that pin 1
is correctly located.

NOTE: The processor will only fit in the socket one way. No
force should be required to insert the processor.

5. Push the locking lever back down into the locked position
as shown.

6. Apply some thermal grease to the top of the processor

NOTE: It is essential that thermal grease (heat sink com­pound) is applied to the processors before the heat sink is
installed to ensure that the heat sink works efficiently.

2.2 Installing motherboard components

16 Chapter 2: Setting up

7. Place the heat sink on top of the processor and tighten
the screw to secure the heat sink in place.

NOTE: All heat sinks must be installed with fans facing the
rear of the chassis to ensure efficient cooling.

8. Connect the fan cables to the fan connectors on mother­board.

NOTE: Refer to mainboard layout on p.9 for the correct loca­tion of fan connector of each CPU.

CPU 2

CPU 0

CPU 1

CPU 3

2.2 Installing motherboard components

Chapter 2: Setting up 17

2.2.3 Installing memory

Follow the instructions in this section to install memory mod­ules in your TX46 system.

1. Remove the chassis cover as described in section 2.2.1
Removing the chassis cover.

2. Locate the memory slots on the motherboard.

3. Press the memory slot locking levers in the direction of
the arrows as shown below.

4. The module will fit only one way in the slot. Ensure that
indentations in the memory module line up with corre­sponding notch in the memory slot.

Memory slots

2.2 Installing motherboard components

18 Chapter 2: Setting up

5. Insert the memory module into the slot as shown.

The locking levers will fall into position.

6. Ensure that the locking levers are firmly in place and that
the memory module is properly seated in the slot.

NOTE: Each bank memory of sockets is associated with one
CPU. Memory will be recognized only when installed in a
socket associated with an installed CPU.

NOTE: When installing memory, install the first module in
CPU0_DIMM_0.

2.2 Installing motherboard components

Chapter 2: Setting up 19

2.2.4 Installing a PCI-X/PCI-E card

Follow the instructions in this section to install a PCI-X/PCI-E
card in your TX46 system.

1. Remove the chassis cover as described in section 2.2.1
Removing the chassis cover.

2. Remove the blanking plate from the slot you wish to use.

3. Insert a PCI-X/PCI-E card into the slot, making sure it is
firmly seated.

2.2 Installing motherboard components

20 Chapter 2: Setting up

4. Replace the screw as shown.

2.2.5 Installing an internal hard drive

Follow these instructions to install an internal hard drive in
your TX46 system.

1. Release the screw (A) and pull the tray out of the chassis
(B).

A

B

2.2 Installing motherboard components

Chapter 2: Setting up 21

2. Place a hard drive in the drive tray (A) and secure it with
four screws (B).

.

3. Slide the drive tray into the chassis and secure the chas­sis with one screw.

4. Connect the data and power cables.

A

B

2.3 Rack mounting

22 Chapter 2: Setting up

2.3 Rack mounting

Rack mounting kit

Sliding Rails x 2:

Sliding Brackets x 4 (Front x 2, Rear x 2)

Mounting Ears x 2

Screws Kit x 1

Mounting Brackets x 4

2.3.1 Installing the server in a rack

Follow these instructions to mount the Transport TX46 into an
industry standard 19" rack.

NOTE: Before mounting the TX46 in a rack, ensure that all
internal components have been installed and that the unit has
been fully tested. Maintenance can be performed on the unit
while in a rack but it is preferable to install the device in a fully
operational condition.

Installing the inner rails to chassis

1. Draw out the inner rails from rail assembly. Install inner
rails to left and right sides of chassis using 4 6# -32
screws for each side. NOTE: The 6#--32 screw is in the
accessary kit, not in the rail kit.
Follow the illustrated below for the “optional rail mounting
holes” and “recommended rail mounting holes”.

B

A

A: Recommended rail mounting holes
B: Optional rail mounting holes

2.3 Rack mounting

Chapter 2: Setting up 23

2. After installing the inner rails, add the washers to the
holes before connecting the mounting ears.

3. Install two screws to connecting the mounting ears.

Installing outer rails to the rack

4. Measure the distance between inner side of the front and
rear mounting brackets in the rack.

2.3 Rack mounting

24 Chapter 2: Setting up

5. Locate the front and rear brackets.

6. Reserve 50mm on the front bracket while using “recom-
mended rail mounting holes” or 15mm for “optional rail
mounting holes”.

7. Secure the front bracket to outer rail with 2 M4-4L
screws.

Rear Bracket x2

Front Bracket x2

Optional rail mounting holes

Recommended rail mounting holes

Washer

M4-4L Screw

2.3 Rack mounting

Chapter 2: Setting up 25

8. Reserve the distance same as in Step 2 on rear bracket.
Secure the rear bracket to outer rail with 2 M4-4L screws.

9. Secure the outer rail to rack using the mounting bracket
and 2 M4-8L screws for each side. Remember to secure
the mounting bracket from inside, not outside, of rack.

Front Side

Remember to add washer

Rear Side

For “optional rail mounting holes”,

For “recommended rail mounting

secure holes 1 & 3.

secure holes 1& 2.

Correct

Incorrect

holes”,

2.3 Rack mounting

26 Chapter 2: Setting up

Rackmounting the server

10. Draw out the middle rail to the latch position.

11. Lift the chassis and then insert the inner slide rails into
the middle rails. Press the latch key on picture A and then
press the latch key on picture B to insert the inner slide
rails.

12. Install the screws on the middle or bottom to secure the
system.

NOTE: To avoid injury, it is strongly recommended that two
people lift the TX46 into the place while a third person screws
it to the rack.

A

B

Chapter 3: Replacing pre-installed components 27

Chapter 3: Replacing pre-installed

components

3.1 Introduction

This chapter describes how to replace all the pre-installed
components of your TX46, including PCI card, motherboard,
CD-ROM drive, optional floppy disk drive, and LED control
board.

Before you attempt to replace any components, make sure
you have read section 2.1 Before you begin, which describes
the precautions you need to take and the tools you will
require.

3.2 Replacing motherboard components

Follow these instructions to remove motherboard compo­nents and replace the motherboard.

3.2.1 Disconnecting all motherboard cables

When replacing the motherboard or certain motherboard
components, it may be necessary to remove cables con­nected to the motherboard. Follow these instructions to
remove all motherboard cabling. See Technical support in the
Appendix for detailed diagrams of cable locations.

3.2 Replacing motherboard components

28 Chapter 3: Replacing pre-installed components

1. Disconnect the PWR0, PWR4, LAN, SATA and CD-ROM
cables.

2. Disconnect the USB, ID and Front Panel cables.

PWR0

PWR4

CD-ROM

SATA3

LAN

USB

ID

Front Panel

3.2 Replacing motherboard components

Chapter 3: Replacing pre-installed components 29

3. Disconnect the SYSFAN1, PWR3 and SYSFAN2 cables.

4. Disconnect the SATA1, SATA2 and SYSFAN8 cables.

5. Disconnect the PWR2, PWR1 and SYSFAN3 cables.

SYSFAN2

PWR3

SYSFAN1

SYSFAN8

SATA1

SATA2

SYSFAN3

PWR1

PWR2

3.2 Replacing motherboard components

30 Chapter 3: Replacing pre-installed components

3.2.2 Replacing the motherboard

Follow these instructions to remove the motherboard from
your TX46.

NOTE: Before proceeding, you must remove all cable con­nections to the motherboard. See section 3.2.1 Disconnect-
ing all motherboard cables.

1. Remove the rear chassis cover. See 2.2.1 Removing the

chassis cover

2. Remove the heat sinks and processors if installed. See

2.2.2 Installing CPUs.

3. Remove the nine screws that secure the motherboard to
the chassis.

4. Carefully lift the motherboard from the chassis.

NOTE: The motherboard is too large to lift straight out. Lift the
front edge of the motherboard up to an angle of about 45°.
Then slide the motherboard out, front end first.

3.3 Replacing the slim CD-ROM drive

Chapter 3: Replacing pre-installed components 31

3.3 Replacing the slim CD-ROM drive

This section describes how to remove and replace the CD­ROM drive in your TX46 system.

1. Remove the front and rear chassis covers as described
in section 2.2.1 Removing the chassis cover.

2. Locate the drive bay housing the slim CD-ROM drive and
remove the power and data cables from the backplane.

3. Remove the screw that secures the CD-ROM drive to the
chassis.

3.3 Replacing the slim CD-ROM drive

32 Chapter 3: Replacing pre-installed components

4. Lift the drive bay free..

5. Remove the four screws to release the CD-ROM drive.
After replacement of a new CD-ROM drive, secure the
CD-ROM in drive bay with four screws.

6. Replace the drive bay in the chassis and secure with a
single screw.

7. Reconnect the power and data cables.

3.4 Replacing the floppy disk drive

Chapter 3: Replacing pre-installed components 33

3.4 Replacing the floppy disk drive

Follow these instructions to replace the FDD in your TX46.

1. Remove the chassis covers as described in section 2.2.1
Removing the chassis cover.

2. Locate the FDD drive bay and remove the power and
data cables from the backplane.

3. Remove the single screw that secures the drive bay to
the chassis.

4. Slide the drive bay back and lift it free from the chassis.
Then, remove the dry stuff from the drive bay and release
two screws to remove the front cover.

Front Cover

3.4 Replacing the floppy disk drive

34 Chapter 3: Replacing pre-installed components

5. Connect the bracket to the FDD tray following the direc­tions on picture A and then secure the bracket with one
single screw (B).

6. Use 2 screws to secure the FDD backplane.

7. Connect the FDD backplane cable to the FDD drive.

A

B

12

3.4 Replacing the floppy disk drive

Chapter 3: Replacing pre-installed components 35

8. Install the FDD drive into the FDD bay and secure the
drive with four screws.

9. Replace the drive bay into the chassis.

10. Secure the drive bay with a single screw. Connect the
power and data cables.

3.5 Replacing the LED control board

36 Chapter 3: Replacing pre-installed components

3.5 Replacing the LED control board

Follow these instructions to replace the LED control board.

1. Unplug the power and data cables.

2. Remove the three screws to release the LED control
board.

3. Follow the reverse steps to reconnect the LED control
board.

3.6 Replacing the power supply

Chapter 3: Replacing pre-installed components 37

3.6 Replacing the power supply

Follow these instructions to replace the power supply in your
TX46 system.

1. Remove the chassis covers as described in section 2.2.1
Removing the chassis cover.

2. Remove the power cables connected to the mother­board.

3. Remove the two screws to release the bracket holding
the power supply.

4. Remove the holding bracket.

3.6 Replacing the power supply

38 Chapter 3: Replacing pre-installed components

5. Remove the two screws securing the power supply.

6. Lift up the power supply.

3.7 Replacing the cooling fans

Chapter 3: Replacing pre-installed components 39

3.7 Replacing the cooling fans

Follow these instructions to replace the cooling fans in your
TX46 system.

1. Remove the chassis covers as described in section 2.2.1
Removing the chassis cover.

2. Locate the fan connector on the motherboard and unplug
the fan cable.

3. Remove the two screws securing the fan. NOTE: Two
screws are used to secure the connection of a single fan.

4. Take the fan away from the chassis.

3.7 Replacing the cooling fans

40 Chapter 3: Replacing pre-installed components

Fan connector table

Barebone Fan MB Jumper MB Fan Function

CPU0 J117 CPUFAN0 PWM

CPU1 J116 CPUFAN1 PWM

CPU2 J108 CPUFAN2 PWM

CPU3 J109 CPUFAN3 PWM

SysFAN1 J103 SysFAN1 PWM

SysFAN2 J107 SysFAN2 PWM

SysFAN3 J105 SysFAN3 PWM

SysFAN4 J112 SysFAN8 Always on