Dell XPS 730 User Manual

Dell™ XPS™ 730/730X Service Manual

Model DCDO

www.dell.com | support.dell.com

Notes, Cautions, and Warnings

NOTE: A NOTE indicates important information that helps you make better use of

your computer.

CAUTION: A CAUTION indicates potential damage to hardware or loss of data if

instructions are not followed.

WARNING: A WARNING indicates a potential for property damage, personal

injury, or death.

If you purchased a Dell™ n Series computer, any references in this document to
Microsoft

®

Windows® operating systems are not applicable.

____________________

Information in this document is subject to change without notice.
© 2008 Dell Inc. All rights reserved.

Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc.
is strictly forbidden.

Trademarks used in this text: Dell, the DELL logo, and XPS are trademarks of Dell Inc.; Microsoft
and Windows, are either trademarks or registered trademarks of Microsoft Corporation in the United
States and/or other countries.

Other trademarks and trade names may be used in this document to refer to either the entities claiming
the marks and names or their products. Dell Inc. disclaims any proprietary interest in trademarks and
trade names other than its own.

Model DCDO

November 2008 Rev. A00

Contents

1 Technical Overview . . . . . . . . . . . . . . . . . . 7

Inside View of Your Computer . . . . . . . . . . . . . . . 7

System Board Components

Dell™ XPS™ 730

Dell XPS 730X

Master Control Board

. . . . . . . . . . . . . . . . 8

. . . . . . . . . . . . . . . . . . . 8

. . . . . . . . . . . . . . . . . . . . 10

. . . . . . . . . . . . . . . . . . 12

2 Before You Begin . . . . . . . . . . . . . . . . . . . 13

Technical Specifications . . . . . . . . . . . . . . . . 13

Recommended Tools

Turning Off Your Computer

Safety Instructions

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

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

. . . . . . . . . . . . . . . . . . . . 14

3 Replacing the Computer Stand . . . . . . . . 15

4 Replacing the Computer Cover . . . . . . . . 17

5 Replacing the Theater Lighting Unit . . . . 19

Replacing the Batteries . . . . . . . . . . . . . . . . . 19

Contents 3

Replacing the Theater Lighting Card . . . . . . . . . . 20

6 Replacing Memory Module(s) . . . . . . . . 23

7 Replacing a PCI/PCI Express Card . . . . 27

Removing a PCI Express Graphics Card From a

Multi Graphics Card Configuration . . . . . . . . . . . 28

Installing Graphics Cards for Multi Graphics Card

Replacing the PCI and PCI Express Cards

. . . . . . . . 35

. . . 31

8 Replacing Drives . . . . . . . . . . . . . . . . . . 43

Replacing a Hard Drive . . . . . . . . . . . . . . . . . 43

Replacing the Drive Panel

Replacing a Floppy Drive (XPS 730 Only)

Replacing a Media Card Reader

. . . . . . . . . . . . . . . . 51

. . . . . . . . 53

. . . . . . . . . . . . . 62

9 Replacing the Heat Sink Assembly . . . . 67

Replacing the Air Cooled Heat Sink Assembly . . . . . 67

Replacing the Liquid Cooling Heat Sink Assembly

. . . 69

10 Replacing the Processor . . . . . . . . . . . . 73

4 Contents

Removing the Processor . . . . . . . . . . . . . . . . . 74

Installing the Processor

. . . . . . . . . . . . . . . . . 75

11 Replacing Fans . . . . . . . . . . . . . . . . . . . . 77

Removing the Card Slot and

Processor Fan Shrouds. . . . . . . . . . . . . . . 77

Replacing the Card Slot Fan Assembly

. . . . . . . 77

Replacing the Processor Fan Assembly . . . . . . 79

Replacing the Hard Drive Fan

. . . . . . . . . . . 80

12 Replacing the Master Control Board . . . 83

13 Replacing the System Board . . . . . . . . . . 85

14 Replacing the Power Supply . . . . . . . . . . 89

15 Replacing the Battery . . . . . . . . . . . . . . . 93

16 System Setup . . . . . . . . . . . . . . . . . . . . . . 95

Overview . . . . . . . . . . . . . . . . . . . . . . . . . 95

Entering System Setup

System Setup Screens

. . . . . . . . . . . . . . . . . . 95

. . . . . . . . . . . . . . . 95

System Setup Options—Dell™ XPS™ 730 . . . . . . . 97

System Setup Options—Dell XPS 730X

Boot Sequence

Option Settings

. . . . . . . . . . . . . . . . . . . . . . 103

. . . . . . . . . . . . . . . . . . . 103

. . . . . . . . . 99

Changing Boot Sequence for the
Current Boot

Changing Boot Sequence for Future Boots

. . . . . . . . . . . . . . . . . . . . 103

. . . . 104

Contents 5

Clearing CMOS Settings . . . . . . . . . . . . . . . . 104

6 Contents

Technical Overview

1

3

4

5

2

WARNING: Before working inside your computer, read the safety information

that shipped with your computer. For additional safety best practices information,
see the Regulatory Compliance Homepage at
www.dell.com/regulatory_compliance.

Inside View of Your Computer

1

1 optical drive bays (4) 2 floppy drive/media card reader

3 hard drive bays (4) 4 processor cooling solution: liquid

5 card fan

cooling assembly (shown) or air
cooling assembly

Technical Overview 7

System Board Components

2

4

5

6

7

10

12

11

13

17

19

20

21

22

27

23

14

16

15

24

25

26

29

8

9

28

3

1

18

Dell™ XPS™ 730

8 Technical Overview

1 CPU socket 2 system board CPU fan header

3 DIMMs 0 and 1 (DIMM 0-1) 4 DIMMs 2 and 3 (DIMM 2-3)

5 ATX power connector

(ATX_PWR)

7 SATA ports 3-6 (SATA 3-6) 8 floppy header (FLOPPY)

9 BIOS debug codes (PORT 80

DECODER)

11 font panel connector (FRONT

PNL)

13 reset CMOS jumper (RESET

CMOS)

15 internal USB header 2 (USB) 16 1394 header

17 battery socket 18 power button (POWER)

19 reset button (RESET) 20 front panel audio header (FP

21 PCI slot 1 (PCI SLOT 1) 22 PCIe x16 (Generation 2) slot 2

23 PCI slot 2 (PCI SLOT 2) 24 PCIe x16 (Generation 1) slot 3

25 PCIe x1 slot (PCIe x1) 26 PCIe x16 (Generation 2) slot 1

27 PCIe x1 slot (PCIe x1) 28 internal eSATA header

29 CPU power header

6 IDE connector (IDE)

10 SATA ports 1-2 (SATA 1-2)

12 serial port header (SERIAL

PORT)-unused

14 internal USB header 1 (USB)

Audio)

(PCIe x16_2)

(PCIe x16_3)

(PCIe x16_1)

Technical Overview 9

Dell XPS 730X

2

4

5

13

15

16

17

18

19

20

6

3

1

8

9

12

7

11

14 10

10 Technical Overview

1 CPU socket 2 system board CPU fan header

3 DIMMs 1, 3, and 5 4 ATX power connector

(ATX_PWR)

5 IDE connector (IDE) 6 SATA port 4 (SATA 4)

7 battery socket 8 SATA ports 1-3 (SATA 1-3)

9 internal USB header 1 (USB) 10 internal USB header 2 (USB)

11 internal USB header 3 (USB) 12 1394 header

13 PCI slot 1 (PCI SLOT 1) 14 front panel audio header (FP

Audio)

15 PCIe slot 5 (PCI_E5) 16 PCIe slot 4 (PCI_E4)

17 PCIe slot 3 (PCI_E3) 18 PCIe slot 2 (PCI_E2)

19 PCIe slot 1 (PCI_E1) 20 CPU power header

Technical Overview 11

Master Control Board

12 34567

8910121314

15

16

11

1 internal LED header

(INTERNAL_LED)

3 front top LED header

(FRONT_TOP_LED)

5 PCI cage fan header

(FAN_CAGE)

7 rear PCI LED header

(REAR_PCI_LED)

9 factory defaults jumper

(FACTORY_DEFAULT)

11 system AC power LED

indicator

13 system board front panel IO

header (MB_IO_HDR)

15 rear IO LED connector

(CONN_REAR)

2 power header (POWER)

4 front bottom right LED IO

header (BOT_RT_LED)

6 power button board header

(CON_PWR_BTN)

8 hard drive fan (FAN_HDD)

10 internal USB headers

(USB_FLEXBAY 1-2)

12 USB input header (USB_MB)

14 H2C liquid cooling header

(H2C)

16 front CPU fan header

(FAN_CPU_FRONT)

12 Technical Overview

Technical Overview 13

14 Technical Overview

2

Before You Begin

This chapter provides procedures for removing and installing the components
in your computer. Unless otherwise noted, each procedure assumes that the
following conditions exist:

• You have performed the steps in "Turning Off Your Computer" on page 13
and "Safety Instructions" on page 14.

• You have read the safety information that ships with your computer

• A component can be replaced or—if purchased separately—installed by
performing the removal procedure in reverse order.

Technical Specifications

For information on technical specifications of your computer, see the Quick

Reference Guide that shipped with your computer or see the Dell Support

website at support.dell.com.

Recommended Tools

The procedures in this document may require the following tools:

• Small Phillips screwdriver

• Small flat-blade screwdriver

.

Turning Off Your Computer

CAUTION: To avoid losing data, save and close all open files and exit all open

programs before you turn off your computer.

1

Shut down the operating system:

2

Ensure that the computer and all attached devices are turned off. If your
computer and attached devices did not automatically turn off when you
shut down your operating system, press and hold the power button for
about 4 seconds to turn them off.

Before You Begin 13

Safety Instructions

Use the following safety guidelines to help protect your computer from
potential damage and to help to ensure your own personal safety.

WARNING: Before working inside your computer, read the safety information

that shipped with your computer. For additional safety best practices information,
see the Regulatory Compliance Homepage at
www.dell.com/regulatory_compliance.

CAUTION: Only a certified service technician should perform repairs on your

computer. Damage due to servicing that is not authorized by Dell is not covered by
your warranty.

CAUTION: When you disconnect a cable, pull on its connector or on its pull-tab,

not on the cable itself. Some cables have connectors with locking tabs; if you are
disconnecting this type of cable, press in on the locking tabs before you
disconnect the cable. As you pull connectors apart, keep them evenly aligned to
avoid bending any connector pins. Also, before you connect a cable, ensure that
both connectors are correctly oriented and aligned.

CAUTION: To avoid damaging the computer, perform the following steps before

you begin working inside the computer.

1

Ensure that the work surface is flat and clean to prevent the computer
cover from being scratched.

2

Turn off your computer (see "Turning Off Your Computer" on page 13).

CAUTION: To disconnect a network cable, first unplug the cable from your

computer and then unplug the cable from the network device.

3

Disconnect all telephone or network cables from the computer.

4

Disconnect your computer and all attached devices from their electrical
outlets.

5

Press and hold the power button while the system is unplugged to ground
the system board.

CAUTION: Before touching anything inside your computer, ground yourself by

touching an unpainted metal surface, such as the metal at the back of the
computer. While you work, periodically touch an unpainted metal surface to
dissipate static electricity, which could harm internal components.

14 Before You Begin

Replacing the Computer Stand

WARNING: Your computer is heavy and can be difficult to maneuver. Seek

assistance before attempting to lift, move, or tilt the computer and always lift
correctly to avoid injury; avoid bending over while lifting.

WARNING: The computer stand should be installed at all times to ensure

maximum system stability. Failure to install the stand could result in the computer
tipping over, potentially resulting in bodily injury or damage to the computer.

1

Follow the procedures in "Before You Begin" on page 13.

2

Loosen the captive screw securing the stand to the base of the computer.

3

Gently slide the stand back, towards the rear of the computer, then pull
the stand away from the computer to remove it.

3

Replacing the Computer Stand 15

4

To replace the computer stand, perform the removal procedure in reverse
order.

16 Replacing the Computer Stand

Replacing the Computer Cover

WARNING: Before working inside your computer, read the safety information

that shipped with your computer. For additional safety best practices information,
see the Regulatory Compliance Homepage at
www.dell.com/regulatory_compliance.

WARNING: To guard against electrical shock, always unplug your computer from

the electrical outlet before removing the cover.

WARNING: Do not operate your equipment with any cover(s) (including computer

covers, bezels, filler brackets, front-panel inserts, etc.) removed.

CAUTION: Ensure that sufficient space exists to support the system with the

cover removed—at least 30 cm (1 ft.) of desk top space.

1

Follow the procedures in "Before You Begin" on page 13.

2

Pull back on the cover release latch.

4

Replacing the Computer Cover 17

2

3

1

4

1 computer cover 2 cover release latch

3 cover hinge tabs 4 stabilizing feet (closed)

3

With the cover release latch pulled back, grip the sides of the cover, then
pivot the top of the cover up and away from the computer.

4

Slide the cover forward and up to remove it from the hinge slots, then set
it aside in a secure and protected location.

5

To replace the computer cover, perform the removal procedure in reverse
order.

18 Replacing the Computer Cover

5

Replacing the Theater Lighting Unit

WARNING: Before working inside your computer, read the safety information

that shipped with your computer. For additional safety best practices information,
see the Regulatory Compliance Homepage at
www.dell.com/regulatory_compliance.

WARNING: To guard against electrical shock, always unplug your computer from

the electrical outlet before removing the cover.

WARNING: Do not operate your equipment with any cover(s) (including computer

covers, bezels, filler brackets, front-panel inserts, etc.) removed.

CAUTION: Ensure that sufficient space exists to support the system with the

cover removed—at least 30 cm (1 ft.) of desk top space.

Replacing the Batteries

WARNING: A new battery can explode if it is incorrectly installed. Replace the

battery only with the same or equivalent type recommended by the manufacturer.
Discard used batteries according to the manufacturer's instructions.

1

Follow the procedures in "Before You Begin" on page 13.

2

Remove the computer cover (see "Replacing the Computer Cover" on
page 17).

Replacing the Theater Lighting Unit 19

1 captive screws 2 batteries

2

1

3

Remove the two captive screws and lift the cover of the battery unit.

4

Replace the batteries with a new pair.

5

Replace the cover of the battery unit and ensure that the screws are secure.

6

Replace the computer cover (see "Replacing the Computer Cover" on
page 17).

7

Connect your computer and devices to electrical outlets, and then turn
them on.

Replacing the Theater Lighting Card

1

Follow the procedures in "Before You Begin" on page 13.

2

Remove the computer cover (see "Replacing the Computer Cover" on
page 17).

20 Replacing the Theater Lighting Unit

1

2

1 theater lighting card 2 theater lighting card

connector

3

Disconnect the

4

Remove the screw securing the theater lighting card to the chassis and lift

theater lighting card connector.

the card out of the slot.

5

Replace the theater lighting card in its slot and tighten the screw.

6

Replace the computer cover (see "Replacing the Computer Cover" on
page 17).

Replacing the Theater Lighting Unit 21

7

Connect your computer and devices to electrical outlets, and then turn
them on.

22 Replacing the Theater Lighting Unit

Replacing Memory Module(s)

1

2

WARNING: Before working inside your computer, read the safety information

that shipped with your computer. For additional safety best practices information,
see the Regulatory Compliance Homepage at
www.dell.com/regulatory_compliance.

1

Follow the procedures in "Before You Begin" on page 13.

2

Remove the computer cover (see "Replacing the Computer Cover" on
page 17).

3

Locate the memory modules on the system board (see "System Board
Components" on page 8).

4

Press out the securing clip at each end of the memory module connector.

6

1 securing clip 2 memory module connector

5

Grasp the module and pull it upwards.

If the module is difficult to remove, gently ease the module back and forth
to remove it from the connector.

CAUTION: Do not install ECC memory modules.

6

Ensure that you install a single memory module in DIMM connector 0, the
connector closest to the processor, before you install modules in any other
connector.

Replacing Memory Module(s) 23

Dell™ XPS™ 730:

A

B

A matched pair of modules in DIMM

connectors 0 and 1

24 Replacing Memory Module(s)

B matched pair of memory modules in

DIMM connectors 2 and 3

Dell XPS 730X:

3

2

1

4

Align the notch on the bottom of the module with the tab in the

7

connector.

1 cutouts (2) 2 memory module

3 notch 4 tab

CAUTION: To avoid damage to the memory module, press the module straight

down into the connector while you apply equal force to each end of the module.

8

Insert the module into the connector until the module snaps into position.

Replacing Memory Module(s) 25

If you insert the module correctly, the securing clips snap into the cutouts
at each end of the module.

9

Replace the computer cover (see "Replacing the Computer Cover" on
page 17).

10

Connect your computer and devices to electrical outlets, and then turn
them on.

If the message appears stating that memory size has changed, press <F1>
to continue.

11

Log on to your computer.

12

Right-click the
desktop and click

13

Click the

14

To verify that the memory is installed correctly, check the amount of
memory (RAM) listed.

My Computer

General

Properties

tab.

icon on your Microsoft® Windows®

.

26 Replacing Memory Module(s)

7

1

2

5

4

3

Replacing a PCI/PCI Express Card

WARNING: Before working inside your computer, read the safety information

that shipped with your computer. For additional safety best practices information,
see the Regulatory Compliance Homepage at
www.dell.com/regulatory_compliance.

NOTE: If a graphics card is installed in each of the PCIe x16 card slots in the multi-

graphics configuration, the PCIe x1 and one PCI card slot are not accessible for
use.

1 PCI card 2 PCIe x1 card

3 PCIe x1 card slot 4 PCIe x16 card slot

5 PCIe x16 card

Replacing a PCI/PCI Express Card 27

Removing a PCI Express Graphics Card From a

1

3

2

Multi Graphics Card Configuration

NOTE: This section deals with dual and triple configurations of PCIe x16 graphics

cards only. For removal of any other type of PCI or PCIe cards, see "Replacing the
PCI and PCI Express Cards" on page 35.

1

Follow the procedures in "Before You Begin" on page 13.

2

Remove the computer cover (see "Replacing the Computer Cover" on
page 17).

3

Gently securing both graphics cards with one hand, remove the graphics
card bridge (if present) with your other hand by pulling it up and away
from the computer. Set it aside.
Repeat if removing two bridges from a triple card configuration.

1 graphics card bridge 2 power connectors (2)

3 dual-PCIe graphics cards

28 Replacing a PCI/PCI Express Card

4

2

3

4

1

3

4

Disconnect any cables connected to the card.

5

Remove the captive screws on top of the PCI card fan shroud and remove
the shroud.

6

Remove the card retention screw(s) on the top of the card retainer at the
appropriate card slot and pivot the card retainer back through the chassis
wall.

1 retention screw 2 card retainer

3 alignment guide 4 fan bracket

Replacing a PCI/PCI Express Card 29

7

1

3

2

Press the securing tab (if present) on the system board connector as you
grasp the card by its top corners, and then ease the card straight out of the
connector.

1 PCIe x16 card 2 securing tab

3 PCIe x16 card slot

8

Install a filler bracket in the empty card-slot opening. If you are replacing
the card, see "Installing Graphics Cards for Multi Graphics Card" on
page 31.

NOTE: Installing filler brackets over empty card-slot openings is necessary to

maintain FCC certification of the computer. The brackets also keep dust and
dirt out of your computer.

NOTE: The graphics card bridge (not present in all multi-graphics

configurations) is not necessary in a single graphics card configuration.

CAUTION: Do not route card cables over or behind the cards. Cables routed over

the cards can prevent the computer cover from closing properly or cause damage
to the equipment.

9

Replace the PCI card fan shroud, replace the computer cover (see
"Replacing the Computer Cover" on page 17), reconnect the computer
and devices to electrical outlets, and then turn them on.

30 Replacing a PCI/PCI Express Card

Installing Graphics Cards for Multi Graphics Card

NOTE: To upgrade to or downgrade from a dual- or triple-graphics card

configuration, you may need additional parts that can be ordered from Dell.

This section pertains to using dual and triple PCIe graphics cards to take
advantage of NVIDIA’s SLI (Scalable Link Interface). For installation of other
types of PCI or PCIe cards, see "Replacing a PCI/PCI Express Card" on
page 27.

Some expansion card slots will not be available for use if a dual-slot graphics
card is installed in any of the PCIe x16 card slots. If you are upgrading from a
single-slot graphics card to a dual-slot graphics card, you will need to remove
any card installed in these expansion slots. To remove a PCIe card, see
"Replacing the PCI and PCI Express Cards" on page 35.

CAUTION: For information about upgrading your system to use NVIDIA SLI

(Scalable Link Interface) multi-graphics technology, see the Dell support website
at support.dell.com.

1

Follow the procedures in "Before You Begin" on page 13.

2

Remove the computer cover (see "Replacing the Computer Cover" on
page 17).

3

Remove the captive screws on top of the PCI card fan shroud and remove
the shroud.

4

Remove the filler bracket or existing graphics card to create a card-slot
opening.

NOTE: If you are upgrading to a multi-graphics card configuration and have a

card installed in the PCIe x1 card slot, remove the card (see "Replacing the
PCI and PCI Express Cards" on page 35).

5

Install two SLI-ready graphics cards into the two outer PCIe x16 slots on
the system board.

Replacing a PCI/PCI Express Card 31

1 retention screw 2 card retainer

1

2

3

4

3 alignment guide 4 fan bracket

6

Prepare the cards for installation.

See the documentation that came with the cards for information on
configuring them, making internal connections, or otherwise customizing
them for your computer.

7

Position each card so that it is aligned with the slot and that the securing
tab (if present) is aligned with the slot.

NOTE: If the card is full length, insert the card guide into the alignment slot on

the fan bracket.

32 Replacing a PCI/PCI Express Card

1 PCIe x16 card 2 securing tab

1

3

2

3 PCIe x16 card slot

CAUTION: Ensure that you release the securing tab to seat the card. If the card is

not installed correctly, you may damage the system board.

Gently pull the securing tab (if present) and place the card in the
connector. Press down firmly and ensure that the card is fully seated in the
slot.

CAUTION: Do not route card cables over or behind the cards. Cables routed over

the cards can prevent the computer cover from closing properly or cause damage
to the equipment.

CAUTION: An incorrectly attached graphics power cable may result in degraded

graphics performance.

8

Screw in the card retention screw(s) on the top of the card retainer at the
appropriate card slot.

9

Repeat for additional graphics cards.

Connect the PCIe supplementary power connectors from the system
power supply to each of the graphics cards. See the documentation for the
card for information about the card’s cable connections.

10

Install the NVIDIA SLI connector across the two outer graphics cards.
Each SLI-ready graphics card has an SLI connector tab on its upper side.
Press firmly on each connector so that it completely covers the connector
tab.

Replacing a PCI/PCI Express Card 33

1 graphics card bridge 2 power connectors (2)

1

3

2

3 dual-PCIe graphics cards

11

If present, lower the graphics card bridge that lays over the installed cards
and snap it into place.

12

Replace the computer cover (see "Replacing the Computer Cover" on
page 17), reconnect the computer and devices to electrical outlets, and
then turn them on.

34 Replacing a PCI/PCI Express Card

Replacing the PCI and PCI Express Cards

CAUTION: To avoid electrostatic discharge and damage to internal components,

ground yourself by using a wrist grounding strap or by periodically touching an
unpainted metal surface on the computer chassis.

CAUTION: If your computer came with a PCI graphics card installed, removal of

the card is not necessary when installing additional graphics cards; however, the
card is required for troubleshooting purposes. If you remove the card, store it in a
safe and secure location.

1

Follow the procedures in "Before You Begin" on page 13.

2

Remove the computer cover (see "Replacing the Computer Cover" on
page 17).

3

Disconnect any cables connected to the card.

4

If the card is a full length, remove the captive screws on top of the PCI
card fan shroud and remove the shroud.

5

Remove the card retention screw.

Replacing a PCI/PCI Express Card 35

1 retention screw 2 card retainer

1

2

3

4

3 alignment guide 4 fan bracket

6

Press the securing tab (if present) on the system board connector as you
grasp the card by its top corners, and then ease the card out of the
connector.

NOTE: If the card is full length, press the securing tab on the end of the

alignment guides on the fan bracket.

36 Replacing a PCI/PCI Express Card

1 PCIe x16 card 2 securing tab

1

3

2

3 PCIe x16 card slot

7

Install a filler bracket in the empty card-slot opening. If you are replacing
the card, see "Replacing a PCI/PCI Express Card" on page 27.

NOTE: Installing filler brackets over empty card-slot openings is necessary to

maintain FCC certification of the computer. The brackets also keep dust and
dirt out of your computer.

CAUTION: Do not route card cables over or behind the cards. Cables routed over

the cards can prevent the computer cover from closing properly or cause damage
to the equipment.

8

Reinstall the card retention screw.

9

Reinstall the card slot fan shroud.

10

Replace the computer cover (see "Replacing the Computer Cover" on
page 17), reconnect the computer and devices to electrical outlets, and
then turn them on.

11

Uninstall the driver for the card that you removed.

CAUTION: If you have or are upgrading to the optional multi-graphics

configuration, see "Installing Graphics Cards for Multi Graphics Card" on page 31
to install a graphics card.

12

If present, press the tab on the graphics card bridge that lays over the
installed cards and rotate it upwards to gain full access to the card.

Replacing a PCI/PCI Express Card 37

13

1

2

3

4

Press down the tab on the top of the graphics card bridge at the
appropriate card slot and pivot the graphics card bridge back through the
chassis wall.

1 retention screw 2 card retainer

3 alignment guide 4 fan bracket

14

Remove the filler bracket or existing card (see "Replacing the PCI and PCI
Express Cards" on page 35) to create a card-slot opening.

15

Prepare the card for installation.

See the documentation that came with the card for information on
configuring the card, making internal connections, or otherwise
customizing it for your computer.

16

Position the card so that it is aligned with the slot and the securing tab (if
present) is aligned with the slot.

38 Replacing a PCI/PCI Express Card

NOTE: If the card is full length, insert the card guide into the alignment slot on

1

3

2

the fan bracket.

1 PCIe x16 card 2 securing tab

3 PCIe x16 card slot

CAUTION: Ensure that you release the securing tab to seat the card. If the card is

not installed correctly, you may damage the system board.

17

Gently pull the securing tab (if present) and place the card in the
connector. Press down firmly and ensure that the card is fully seated in the
slot.

Replacing a PCI/PCI Express Card 39

1 card connector (seated) 2 card connector (not seated)

1

2

4

3

6

5

3 bracket properly aligned within slot 4 bracket improperly aligned outside of

slot

5 alignment bar 6 alignment guide

CAUTION: Do not route card cables over or behind the cards. Cables routed over

the cards can prevent the computer cover from closing properly or cause damage
to the equipment.

CAUTION: An incorrectly attached graphics power cable may result in degraded

graphics performance.

18

Connect any cables that should be attached to the card.

See the documentation for the card for information about the card’s cable
connections.

CAUTION: Before rotating the card retainer back into place, ensure that the tops

of all cards and filler brackets are flush with the alignment bar and the notch in
the top of each card or filler bracket fits around the alignment guide.

40 Replacing a PCI/PCI Express Card

19

Rotate the graphics card bridge back into its original position; push its tip
so that its tab clicks into place.

20

If present, lower the graphics card bridge that lays over the installed cards
and snap it into place.

21

Replace the computer cover (see "Replacing the Computer Cover" on
page 17), reconnect the computer and devices to electrical outlets, and
then turn them on.

22

Install any drivers required for the card as described in the card
documentation.

Replacing a PCI/PCI Express Card 41

42 Replacing a PCI/PCI Express Card

Replacing Drives

WARNING: Before working inside your computer, read the safety information

that shipped with your computer. For additional safety best practices information,
see the Regulatory Compliance Homepage at
www.dell.com/regulatory_compliance.

Replacing a Hard Drive

WARNING: To guard against electrical shock, always unplug your computer from

the electrical outlet before removing the cover.

CAUTION: If you are replacing a hard drive that contains data that you want to

keep, back up your files before you begin this procedure.

1

Follow the procedures in "Before You Begin" on page 13.

2

Remove the computer cover (see "Replacing the Computer Cover" on
page 17).

3

Disconnect the power cable and the data cable from the hard drive.

8

Replacing Drives 43

Dell™ XPS™ 730:

1 2

1 power cable 2 data cable

44 Replacing Drives

Dell XPS 730X:

1 2

1 power cable 2 data cable

4

Press the blue tabs on each side of the hard drive bracket toward each other
and slide the drive up and out of the hard drive bay.

Replacing Drives 45

1

3

2

1 blue tabs (2) 2 hard drive

3 hard drive bay

NOTE: If a hard drive bracket is installed inside the hard drive bay, remove

the bracket before you install a new hard drive.

5

Prepare the new hard drive for installation and check the documentation
for the hard drive to verify that the drive is configured for your computer.

NOTE: If the hard drive you are installing does not have the hard drive bracket

attached, use your original hard drive bracket; snap the bracket onto the new
drive.

46 Replacing Drives

3.5" hard drive:

2

1

Removal:

Replacement:

1 hard drive 2 hard drive bracket

Replacing Drives 47

2.5" hard drive:

1

2

3

1

2

3

Removal:

1 hard drive cage 2 hard drive

3 hard drive bracket

Replacement:

1 hard drive 2 hard drive bracket

3 hard drive cage

48 Replacing Drives

6

1

2

Verify that the hard drive bay is empty and unobstructed.

7

Slide the hard drive into the hard drive bay until it clicks securely into
place.

1 hard drive 2 hard drive bay

CAUTION: Ensure that all connectors are properly cabled and firmly seated.

8

Connect the power cable to the hard drive.

9

Connect the hard drive data cable to the hard drive.

Replacing Drives 49

Dell XPS 730:

1

2

1 power cable 2 data cable

50 Replacing Drives

Dell XPS 730X:

1

2

1 power cable 2 data cable

10

Replace the computer cover (see "Replacing the Computer Cover" on
page 17).

11

Connect the computer and devices to electrical outlets, and turn them on.

See the documentation that came with the drive for instructions on
installing any software required for drive operation.

Replacing the Drive Panel

1

Follow the procedures in "Before You Begin" on page 13.

2

Remove the computer cover (see "Replacing the Computer Cover" on
page 17).

Replacing Drives 51

3

2

1

3

Grasp the drive release latch and slide it towards the base of the computer
until the drive panel snaps open.

1 drive release latch 2 drive panel

3 drive panel tabs

4

Pivot the drive panel outward and lift it from its side hinges.

5

6

52 Replacing Drives

Set the drive panel aside in a secure location.

To install the new drive panel, align the drive panel tabs with the side door
hinges.

1 drive release latch 2 drive panel

2

1

3

3 drive panel tabs

7

Rotate the drive panel toward the computer until it snaps into place on the
drive panel.

8

Replace the computer cover (see "Replacing the Computer Cover" on
page 17).

1

Follow the procedures in "Before You Begin" on page 13.

2

Remove the computer cover (see "Replacing the Computer Cover" on
page 17).

3

Remove the drive panel (see "Replacing the Drive Panel" on page 51).

4

Disconnect the power and data cables from the back of the floppy drive.

Replacing Drives 53

Replacing a Floppy Drive (XPS 730 Only)

1 power cable 2 floppy drive data cable

1

2

5

Slide the drive release latch towards the base of the computer to release
the shoulder screw, and then slide the drive out of the drive bay.

54 Replacing Drives

1 drive release latch 2 floppy drive

1

2

1

2

6

If no screws are attached to the new floppy drive, check the inside of the
drive panel for shoulder screws. If screws are present, attach the screws to
the new drive.

Replacing Drives 55

1 floppy drive 2 shoulder screws (4)

1

2

7

Slide the floppy drive into the drive bay until it clicks into place.

1 drive release latch 2 floppy drive

8

Connect the power and data cables to the back of the floppy drive.

9

Check all cable connections and fold cables out of the way to avoid
blocking airflow between the fan and cooling vents.

10

Replace the drive panel (see "Replacing the Drive Panel" on page 51).

11

Replace the computer cover (see "Replacing the Computer Cover" on
page 17).

12

Connect your computer and devices to their electrical outlets, and turn
them on.

56 Replacing Drives

See the documentation that came with the drive for instructions on
installing any software required for drive operation.

13

Enter system setup (see "System Setup" on page 97), and select the
appropriate

Diskette Drive

option.

Replacing an Optical Drive

1

Follow the procedures in "Before You Begin" on page 13.

2

Remove the computer cover (see "Replacing the Computer Cover" on
page 17).

3

Remove the drive panel (see "Replacing the Drive Panel" on page 51).

4

Disconnect the power and data cables from the back of the drive.

NOTE: If you are uninstalling your only optical drive and will not replace it at

this time, disconnect the data cable from the system board and set it aside.

Replacing Drives 57

2

1

1 data cable 2 power cable

5

Slide the drive release latch towards the base of the computer to release
the shoulder screw, and then slide the optical drive out of the drive bay.

58 Replacing Drives

1 drive release latch 2 optical drive

1

2

6

To replace the optical drive, prepare the drive for installation and check the
documentation that accompanied the drive to verify that the drive is
configured for your computer.

NOTE: If you are installing an IDE drive, configure the drive for the cable

7

select setting.

If no screws are attached to the drive, check the inside of the drive panel
for screws and, if screws are present, attach the screws to the new drive.

Replacing Drives 59

1 optical drive 2 shoulder screws (3)

2

1

1

2

8

Gently slide the drive into the drive bay until you hear a click or feel the
drive securely installed.

1 drive release latch 2 optical drive

60 Replacing Drives

9

2

1

Attach the power and data cables to the optical drive.

To locate the system board connector, see "System Board Components" on
page 8.

1 power cable 2 data cable

10

Check all cable connections and fold cables out of the way to avoid
blocking airflow between the fan and cooling vents.

11

Replace the drive panel (see "Replacing the Drive Panel" on page 51).

12

Replace the computer cover (see "Replacing the Computer Cover" on
page 17).

13

Connect your computer and devices to their electrical outlets, and turn
them on.

Replacing Drives 61

See the documentation that came with the drive for instructions on

1

installing any software required for drive operation.

14

Enter system setup (see "System Setup" on page 97) and select the
appropriate

Drive

option.

Replacing a Media Card Reader

1

Follow the procedures in "Before You Begin" on page 13.

2

Remove the computer cover (see "Replacing the Computer Cover" on
page 17).

3

Remove the drive panel (see "Replacing the Drive Panel" on page 51).

4

Disconnect the cable from the back of the Media Card Reader.

1 media card reader cable

62 Replacing Drives

5

1

2

Slide the drive release latch towards the base of the computer to release
the shoulder screw, and then slide the media card reader out of the drive
bay.

1 drive release latch 2 media card reader

Replacing Drives 63

6

1

2

If no screws are attached to the new Media Card Reader, check the inside
of the drive panel for shoulder screws. If screws are present, attach the
screws to the new card reader.

1 media card reader 2 shoulder screws (4)

7

Slide the Media Card Reader into the drive bay until it clicks into place.

64 Replacing Drives

1 drive release latch 2 media card reader

1

2

8

Attach the cable to the back of the Media Card Reader.

9

Check all cable connections and fold cables out of the way to avoid
blocking airflow between the fan and cooling vents.

10

Replace the drive panel (see "Replacing the Drive Panel" on page 51).

11

Replace the computer cover (see "Replacing the Computer Cover" on
page 17).

12

Connect your computer and devices to their electrical outlets, and turn
them on.

See the documentation that came with the drive for instructions on
installing any software required for drive operation.

Replacing Drives 65

13

Enter system setup (see "System Setup" on page 97) and select the
appropriate

USB for FlexBay

option.

66 Replacing Drives

9

Replacing the Heat Sink Assembly

WARNING: Before working inside your computer, read the safety information that

shipped with your computer. For additional safety best practices information, see
the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.

CAUTION: Do not perform the following steps unless you are familiar with

hardware removal and replacement. Performing these steps incorrectly could
damage your system board. For technical service, see the

Your computer uses one of the following types of processor cooling solutions,
air-cooling or H2Ceramic (also called H2C or Hot-to-Cold) liquid-cooling
system.

Setup Guide

Replacing the Air Cooled Heat Sink Assembly

1

Follow the procedures in "Before You Begin" on page 13.

2

Remove the computer cover (see "Replacing the Computer Cover" on
page 17).

WARNING: The processor heat sink can get very hot during normal operation. Be

sure that the heat sink has had sufficient time to cool before you touch it.

3

Loosen the four captive screws that secure the heatsink to the chassis.

4

Gently lift the heat sink assembly out of the chassis. You may have to
gently twist the heat sink to fully disengage the heat sink assembly.

5

Disconnect the fan cable from the rear fan connector on the LED circuit
board at the back of the chassis.

.

Replacing the Heat Sink Assembly 67

1 fan power connector 2 LED circuit board

3

1

2

3 captive screws (4)

CAUTION: The processor heat sink is attached to the processor fan shroud. When

you remove the processor fan shroud, lay it upside down or on its side to avoid
damaging the heat sink thermal interface.

CAUTION: Ensure that adequate thermal grease is applied to the top of the

processor. Thermal grease is critical for ensuring adequate thermal bonding,
which is a requirement for optimal processor operation.

6

To replace the air cooled heat sing assembly, apply thermal grease to the
top of the processor as needed.

7

Align the screw holes on the heat sink assembly with the holes on the base
of the computer, then tighten the four screws to secure the assembly.

8

Connect the fan cable to the rear fan connector on the LED circuit board.

9

Replace the computer cover (see "Replacing the Computer Cover" on
page 17).

68 Replacing the Heat Sink Assembly

Replacing the Liquid Cooling Heat Sink Assembly

WARNING: The liquid cooling assembly is responsible for cooling the system

board chipset in addition to the CPU. If the liquid cooling assembly is replaced
with an assembly other than the original, a cooling solution must be installed to
avoid overheating the chipset. Failure to install a cooling solution, either third­party or Dell provided, may result in damage to your system and render the system
inoperable.

1

Follow the procedures in "Before You Begin" on page 13.

2

Remove the computer cover (see "Replacing the Computer Cover" on
page 17).

WARNING: The processor heat sink can get very hot during normal operation. Be

sure that the heat sink has had sufficient time to cool before you touch it.

3

Observe the following cautions when working with the liquid cooling
assembly.

• The liquid cooling assembly is not user serviceable or upgradeable. All

required service should be done by qualified service personnel only.

• The liquid cooling assembly in your system contains a non-refillable

coolant. In the event of a coolant leak, shut down your system
immediately. Unplug your system from the power outlet and contact
Dell Technical Support.

• In the event of skin contact with the coolant, wash your skin with soap

and water. Seek medical attention if irritation develops.

• In the event of eye contact with the coolant, rinse your eyes

immediately with water, with your eyelids open, for 15 minutes. Seek
medical attention if irritation persists.

4

Disconnect the liquid cooling cable from the H2C connector on the
Master Control Board (see "Master Control Board" on page 12).

CAUTION: The processor heat sink is attached to the liquid cooling assembly.

When you remove the liquid cooling assembly, lay it upside down or on its side to
avoid damaging the heatsink thermal interface.

5

Loosen the screws on the liquid cooling assembly, then lift the assembly
out of the computer and set it aside.

Replacing the Heat Sink Assembly 69

1 liquid cooling assembly 2 captive screws

2

1

CAUTION: Ensure that adequate thermal grease is applied to the top of the

6

processor. Thermal grease is critical for ensuring adequate thermal bonding,
which is a requirement for optimal processor operation.

To install the liquid cooling heat sink assembly, apply thermal grease to the
top of the processor as needed.

7

Align the screw holes on the liquid cooling assembly with the holes on the
base of the computer, then tighten the six screws to secure the assembly.

8

Connect the liquid cooling cable to the H2C connector on the Master
Control Board (see "Master Control Board" on page 12).

9

Close the computer cover (see "Replacing the Computer Cover" on
page 17).

10

Connect your computer and devices to electrical outlets, and turn
them on.

70 Replacing the Heat Sink Assembly

Replacing the Heat Sink Assembly 71

72 Replacing the Heat Sink Assembly

10

Replacing the Processor

WARNING: Before working inside your computer, read the safety information that

shipped with your computer. For additional safety best practices information, see
the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.

CAUTION: Do not perform the following steps unless you are familiar with

hardware removal and replacement. Performing these steps incorrectly could
damage your system board. For technical service, see the

1

Follow the procedures in "Before You Begin" on page 13.

2

Remove the computer cover (see "Replacing the Computer Cover" on
page 17).

WARNING: Despite having a plastic shield, the heat sink assembly may be very

hot during normal operation. Be sure that it has had sufficient time to cool before
you touch it.

3

Disconnect the power cables from the ATX_POWER and ATX_CPU
connectors (see "System Board Components" on page 8) on the system
board.

4

Remove the processor fan and heat sink assembly from the computer (see
"Replacing the Processor Fan Assembly" on page 79).

NOTE: Unless a new heat sink is required for the new processor, reuse the

original heat sink assembly when you replace the processor.

5

Press and push the release lever down and out to release it from the tab
that secures it.

6

Open the processor cover, if applicable.

Setup Guide

.

Replacing the Processor 73

Removing the Processor

1

2

3

4

1 processor cover 2 processor

3 socket 4 release lever

CAUTION: When removing or replacing the processor, do not touch any of the

pins inside the socket or allow any object to fall on the pins in the socket.

7

Lift the processor to remove it from the socket, place it aside in a safe and
secure place.

Leave the release lever extended in the release position so that the socket is
ready for the new processor.

8

Unpack the new processor, being careful not to touch the underside of
the processor.

74 Replacing the Processor

Installing the Processor

1

3

4

6

8

7

9

2

5

1 processor cover 2 tab

3 processor 4 socket

5 center cover latch 6 release lever

7 front alignment-notch 8 processor pin-1 indicator

9 rear alignment notch

9

If the release lever on the socket is not fully extended, move it to that
position.

CAUTION: Socket pins are delicate. To avoid damage, ensure that the processor

is aligned properly with the socket, and do not use excessive force when you
install the processor. Be careful not to touch or bend the pins on the system board.

10

Orient the front and rear alignment-notches on the processor with the
front and rear alignment-notches on the socket.

11

Align the pin-1 corners of the processor and socket.

Replacing the Processor 75

CAUTION: To avoid damage, ensure that the processor aligns properly with the

socket, and do not use excessive force when you install the processor.

12

Set the processor lightly in the socket and ensure that the processor is
positioned correctly.

13

When the processor is fully seated in the socket, close the processor cover,
if applicable.

Ensure that the tab on the processor cover is positioned underneath the
center cover latch on the socket.

14

Pivot the socket release lever back towards the socket, and snap it into
place to secure the processor.

15

Clean the thermal grease from the bottom of the heat sink.

CAUTION: Ensure that you apply new thermal grease. New thermal grease is

critical for ensuring adequate thermal bonding, which is a requirement for optimal
processor operation.

16

Apply the new thermal grease to the top of the processor.

17

Install the processor fan and heat sink assembly (see "Replacing the Heat
Sink Assembly" on page 67).

CAUTION: Ensure that the processor fan and heat sink assembly is correctly

seated and secure.

18

Replace the computer cover (see"Replacing the Computer Cover" on
page 17).

19

Connect your computer and devices to electrical outlets, and then turn
them on.

76 Replacing the Processor

11

Replacing Fans

WARNING: Before working inside your computer, read the safety information

that shipped with your computer. For additional safety best practices information,
see the Regulatory Compliance Homepage at
www.dell.com/regulatory_compliance.

WARNING: To guard against likelihood of electric shock, laceration by moving

fan blades or other unexpected injuries, always unplug your computer from the
electrical outlet before removing the cover.

Removing the Card Slot and Processor Fan Shrouds

1

Follow the procedures in "Before You Begin" on page 13.

2

Remove the computer cover (see "Replacing the Computer Cover" on
page 17).

3

Remove the captive screws on top of the shroud you are removing and lift
the shroud out of the chassis.

Replacing the Card Slot Fan Assembly

1

Remove the card slot fan shroud (see "Removing the Card Slot and
Processor Fan Shrouds" on page 77).

2

Remove any full-length expansion cards (see "Replacing the PCI and PCI
Express Cards" on page 35).

3

Disconnect the fan cable from the FAN_CAGE connector on the system
board.

4

Remove the front and back screws on the base of the fan cage.

5

Pull the fan cage to towards the rear of the chassis to disengage the cage
tabs.

6

Lift the cage off the chassis.

Replacing Fans 77

1

2

3

1 cage housing 2 fan cage

3 screws (2)

7

To install the card slot fan assembly, connect the fan cable to the
FAN_CAGE connector on the system board (see "Master Control Board"
on page 12).

8

Align the fan cage tabs with the slots in the chassis. Insert the tabs and
push the cage towards the front of the chassis.

9

Screw in the fan retention screws on the front and back of the fan cage.

10

Replace any expansion cards that you removed (see "Replacing a PCI/PCI
Express Card" on page 27).

11

Replace the PCI card fan shroud and captive screws on top of it.

78 Replacing Fans

12

2

1

Replace the computer cover (see "Replacing the Computer Cover" on
page 17).

13

Connect your computer and devices to electrical outlets, and then turn
them on.

Replacing the Processor Fan Assembly

1

Remove the card slot fan shroud (see "Removing the Card Slot and
Processor Fan Shrouds" on page 77).

1 processor fan shroud 2 captive screws (2)

Replacing Fans 79

2

Remove the processor fan shroud (see "Removing the Card Slot and
Processor Fan Shrouds

3

Disconnect the fan cable from the FAN_CPU_FRONT connector on the
Master Control Board (see "Master Control Board" on page 12).

4 Loosen the captive screws securing the processor fan shroud to the

chassis, then rotate the shroud back.

5

To Install the processor fan assembly, align the hinge slots on the processor
fan shroud with the hinge guides on the chassis.

6

Gently rotate the processor fan shroud towards the fan, and then tighten
the two captive screws.

7

Connect the fan cable to the rear fan connector on the LED circuit board
at the back of the chassis.

8

Replace the processor fan shroud on top o the processor fan assembly, and
then tighten the two captive screws.

9

Replace the computer cover (see "Replacing the Computer Cover" on
page 17).

10

Connect your computer and devices to electrical outlets, and turn
them on.

" on page 77

)

Replacing the Hard Drive Fan

1

Follow the procedures in "Before You Begin" on page 13.

2

Remove the computer cover (see "Replacing the Computer Cover" on
page 17).

3

Remove all installed memory modules (see "Replacing Memory
Module(s)" on page 23).

4

Disconnect the fan cable from the FAN_CPU_FRONT connector on the
Master Control Board (see "Master Control Board" on page 12).

5

Press the release latch on the hard drive fan and slide it away from the hard
drive bays and lift to remove from the computer.

80 Replacing Fans

1 hard-drive fan release latch 2 hard drive fan

2

1

6

To install the hard drive fan, slide the fan between the hard drive bays until
it snaps into place.

7

Connect the fan cable to the FAN_HDD connector on the Master Control
Board (see "Master Control Board" on page 12).

8

Replace the computer cover (see "Replacing the Computer Cover" on
page 17).

9

Connect your computer and devices to electrical outlets, and then turn
them on.

Replacing Fans 81

82 Replacing Fans

12

Replacing the Master Control Board

WARNING: Before working inside your computer, read the safety information

that shipped with your computer. For additional safety best practices information,
see the Regulatory Compliance Homepage at
www.dell.com/regulatory_compliance

1

Follow the procedures in "Before You Begin" on page 13.

2

Remove the computer cover (see "Replacing the Computer Cover" on
page 17).

3

Remove the fan shrouds (see "Removing the Card Slot and Processor Fan
Shrouds" on page 77).

4

Remove the card slot assembly (see "Replacing the Card Slot Fan
Assembly" on page 77).

5

Remove the processor fan assembly (see "Replacing the Processor Fan
Assembly" on page 79).

6

Disconnect all cables from the master control board.

7

Remove three screws that secure the master control panel to the metal
tray.

Replacing the Master Control Board 83

8

1

2

Lift the master control board out.

1 master control board 2 Screws (3)

9

To replace the master control board, Orient the board on the metal tray.

10

Replace the three screws to secure the master control board assembly to
the metal tray.

11

Reconnect all cables to the master control board.

12

Replace the processor fan assembly (see "Replacing the Processor Fan
Assembly" on page 79).

13

Replace the card slot fan assembly (see "Replacing the Card Slot Fan
Assembly" on page 77).

14

Replace the fan shrouds.

15

Replace the computer cover (see "Replacing the Computer Cover" on
page 17).

84 Replacing the Master Control Board

13

Replacing the System Board

WARNING: Before working inside your computer, read the safety information

that shipped with your computer. For additional safety best practices information,
see the Regulatory Compliance Homepage at
www.dell.com/regulatory_compliance

1

Follow the procedures in "Before You Begin" on page 13.

2

Remove the computer cover (see "Replacing the Computer Cover" on
page 17).

3

Remove any full-length expansion cards (see "Replacing the PCI and PCI
Express Cards" on page 35).

4

Remove any additional components that may restrict access to the system
board.

5

Disconnect all cables from the system board.

CAUTION: If you are replacing the system board, visually compare the

replacement system board to the existing system board to make sure that you have
the correct part.

6

Remove the two screws securing the system board assembly to the chassis,
then pull on the two tabs to slide the system board assembly towards the
front of the computer.

Replacing the System Board 85

1 screws (2) 2 system board

1

4

2

3

3 metal tray 4 tabs

CAUTION: The system board and metal tray are connected and are removed as

one piece.

7

Carefully, lift the system board assembly up and out of the computer.

CAUTION: If you are replacing the system board, visually compare the

replacement system board to the existing system board to make sure that you have
the correct part.

NOTE: Some components and connectors on replacement system boards may be

in different locations than corresponding connectors on the existing system board.

NOTE: Jumper settings on replacement system boards are preset by the factory.

8

Transfer components from the existing system board to the replacement
system board, if applicable.

86 Replacing the System Board

9

Orient the system board assembly by aligning the notches on the bottom
of the assembly with the tabs on the computer.

10

Slide the system board assembly toward the back of the computer until the
assembly clicks into place.

11

Replace the two screws to secure the system board assembly to the chassis.

12

Replace any expansion cards that you removed (see "Replacing a PCI/PCI
Express Card" on page 27).

13

Replace any additional components that you removed from the system
board.

14

Reconnect all cables to the system board.

15

Replace the computer cover (see "Replacing the Computer Cover" on
page 17).

16

Connect your computer and devices to electrical outlets, and then turn
them on.

17

Flash the system BIOS, as needed.

NOTE: For information on flashing the system BIOS, see support.dell.com.

Replacing the System Board 87

88 Replacing the System Board

14

Replacing the Power Supply

WARNING: Before working inside your computer, read the safety information

that shipped with your computer. For additional safety best practices information,
see the Regulatory Compliance Homepage on www.dell.com at the following
location: www.dell.com/regulatory_compliance.

WARNING: To guard against electrical shock, always unplug your computer from

the electrical outlet before removing the cover.

1

Follow the procedures in "Before You Begin" on page 13.

2

Remove the computer cover (see "Replacing the Computer Cover" on
page 17).

3

Remove all hard drives installed in the interior hard drive bays (see
"Replacing a Hard Drive" on page 43).

4

Remove the hard drive fan, if applicable (see "Replacing the Hard Drive
Fan" on page 80).

5

Remove the two screws that attach the forward hard drive bay to the
chassis.

6

Remove the forward hard drive bay from the chassis.

Replacing the Power Supply 89

1

2

1 screws (4) 2 hard drive bays

7

Remove the four screws that attach the power supply to the back of the
computer chassis.

8

Disconnect the power supply harness from the power supply by depressing
the two tabs and pulling the harness away from the power supply.

90 Replacing the Power Supply

1

1 power supply screws (4)

9

Slide the power supply towards the front of the computer to free it from
the securing tabs on the computer chassis.

10

Slide the power supply toward the hard drive bay area, so that it will clear
the protruding lip of the chassis and lift the power supply from the
computer.

11

To replace the power supply, slide the new power supply into place,
ensuring that the tabs on the rear wall of the computer chassis latch into
place.

Replacing the Power Supply 91

12

Replace the four screws that secure the power supply to the back of the
computer chassis.

13

Reconnect the power supply harness to the power supply.

14

Replace the two hard drive bays.

15

Replace all hard drives installed in the interior hard drive bays (see
"Replacing a Hard Drive" on page 43).

16

Replace the hard drive fan, if applicable (see "Replacing the Hard Drive
Fan" on page 80).

17

Reconnect each of the DC power cables that were previously connected,
carefully rerouting them as you found them.

18

Replace the computer cover (see "Replacing the Computer Cover" on
page 17).

19

Connect your computer and devices to electrical outlets, and then turn
them on.

92 Replacing the Power Supply

15

1

2

Replacing the Battery

WARNING: Before working inside your computer, read the safety information

that shipped with your computer. For additional safety best practices information,
see the Regulatory Compliance Homepage at
www.dell.com/regulatory_compliance.

WARNING: A new battery can explode if it is incorrectly installed. Replace the

battery only with the same or equivalent type recommended by the manufacturer.
Discard used batteries according to the manufacturer’s instructions.

1

Record all the screens in system setup (see "System Setup" on page 97) so
that you can restore the correct settings in step 10.

2

Follow the procedures in "Before You Begin" on page 13.

3

Remove the computer cover (see "Replacing the Computer Cover" on page 17).

4

Locate the battery socket (see "System Board Components" on page 8).

CAUTION: If you pry the battery out of its socket with a blunt object, be careful

not to touch the system board with the object. Ensure that the object is inserted
between the battery and the socket before you attempt to pry out the battery.
Otherwise, you may damage the system board by prying off the socket or by
breaking circuit traces on the system board.

1 battery (positive side) 2 battery release lever

Replacing the Battery 93

5

1

2

Carefully press the battery release lever away from the battery and the
battery will pop out.

6

Remove the battery from the system and properly dispose of the battery.

7

Insert the new battery into the socket with the side labeled "+" facing up,
then snap the battery into place.

1 battery (positive side) 2 battery release lever

8

Replace the computer cover (see "Replacing the Computer Cover" on
page 17).

9

Connect your computer and devices to electrical outlets, and then turn
them on.

10

Enter system setup (see "System Setup" on page 97) and restore the
settings you recorded in step 1.

94 Replacing the Battery

16

System Setup

Overview

Use System Setup to:

• change the system configuration information after you add, change, or
remove any hardware in your computer.

• set or change a user-selectable option such as the user password.

• read the current amount of memory or set the type of hard drive installed.

Before you use System Setup, it is recommended that you write down the
system setup screen information for future reference.

CAUTION: Do not change the settings in system setup unless you are an expert

computer user. Certain changes can cause your computer to work incorrectly.

Entering System Setup

1

Turn on (or restart) your computer.

2

When the DELL logo appears, press <F2> immediately.

NOTE: Keyboard failure may result when a key on the keyboard is held down

for extended periods of time. To avoid possible keyboard failure, press and
release <F2> in even intervals until the system setup screen appears.

If you wait too long and the operating system logo appears, continue to
wait until you see the Microsoft
your computer and try again.

®

Windows® desktop, then shut down

System Setup 97

System Setup Options—Dell™ XPS™ 730

NOTE: Depending on your computer and installed devices, the items listed in this

section may, or may not appear exactly as listed.

Main

System Date Displays the current date in the mm:dd:yy format.
System Time Displays the time in the hh:mm:ss format.
SATA 0 Displays the SATA 0 drive integrated in the system.
SATA 1 Displays the SATA 1 drive integrated in the system.
System Info Displays the BIOS version number and date, system model

name and the service tag of the computer.

Memory Info Indicates amount of installed memory, usable memory, memory

speed, memory channel mode (dual or single), and the type of
memory technology used.

Advanced

CPU Type Displays the processor type.
CPU Speed Displays the processor speed.
Cache L2 Displays the processor L2 cache size.
Advanced

Chipset
Features

Integrated
Peripherals

CPU
Configuration

USB
Configuration

Displays the video memory size.

Allows you to enable or disable these integrated devices:

Audio, Onboard LAN connector, Onboard LAN Boot ROM

and

Side logo

AHCI mode.

Allows you to enable or disable the CPU features that enhance
the performance of the system.

Allows you to enable or disable the USB controller.

. Serial ATA Configuration can be set to IDE or

HD

,

98 System Setup

Power

ACPI Suspend
Type

Auto Power On Allows you to enable or disable an alarm to turn on the

AC Recovery Specifies the behaviour of the system after recovering from a

HDD Acoustic
Mode

Specifies the ACPI suspend type. The default is S3.

computer automatically.

power loss.

• Power on — The computer turns on after it recovers from a
power failure.

• Power off — The computer remains powered off.

• Last state— The computer returns the power state it was in
before the power failure.

Determines the acoustic mode at which the hard drive
operates.

Bypass — Do nothing (needed for older drives).

Quiet — The hard drive operates at its most quiet setting.

Performance — The hard drive operates at its maximum speed.

NOTE: Switching to performance mode may cause an increase in

noise produced by the drive, but does not affect the drive's
performance.

Boot

Boot Device
Priority

Hard Disk Boot
Priority

CD/DVD Boot
Priority

Boot Settings
Configuration

Security Allows you to set or change the supervisor password.

Sets the boot priority among the available devices.

Sets the hard drive boot priority. The items displayed are
dynamically updated according to the hard drives detected.

Sets the optical drive boot priority. The items displayed are
dynamically updated according to the optical drives detected.

Allows the BIOS to skip certain tests while booting. This
decreases the time needed to boot the system.

System Setup 99

Exit

Exit Options Provides options to Save Changes and Exit, Discard Changes

and Exit, Load Optimal Defaults, and Discard Changes.

System Setup Options—Dell XPS 730X

System Information

Product Name XPS 730X.
BIOS Version Displays the BIOS version number and date information.
Input Service

tag
Service Tag Displays the service tag of the computer.
Asset Tag Displays the Asset tag of the computer.
Memory

Installed
Memory

Available
Memory

Techonology
Memory Speed Indicates the memory speed.
CPU ID/ u Code IDDisplays the processor type.

Allows you to input the service tag.

Indicates amount of memory installed.

Indicates the amount of usable memory.

Indicates the type of memory technology used.

CPU Speed Displays the processor speed.
Current

QuickPath
Interconnect
(QPI) speed

Cache L2 Displays the processor L2 cache size.

Standard CMOS Features

Displays the QPI Speed.

100 System Setup