Dell Precision Tower 3420 User manual

Dell Precision Tower 3420
Owner's Manual
Regulatory Model: D11S
Regulatory Type: D11S001

Notes, cautions, and warnings
NOTE: A NOTE indicates important information that helps you make better use of your computer.
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you
how to avoid the problem.
WARNING: A WARNING indicates a potential for property damage, personal injury, or death.
Copyright ©2015 Dell Inc. All rights reserved. This product is protected by U.S. and international copyright and
intellectual property laws. Dell™and the Dell logo are trademarks of Dell Inc. in the United States and/or other
jurisdictions. All other marks and names mentioned herein may be trademarks of their respective companies.
2015 - 10
Rev. A00

Contents
1 Working on Your Computer................................................................................5
Before Working Inside Your Computer................................................................................................ 5
Turning Off Your Computer..................................................................................................................6
After Working Inside Your Computer................................................................................................... 7
2 Removing and Installing Components............................................................. 8
Recommended Tools............................................................................................................................8
Removing the Cover............................................................................................................................. 8
Installing the Cover............................................................................................................................... 8
Removing the Front Bezel.....................................................................................................................9
Installing the Front Bezel.......................................................................................................................9
Removing the Hard Drive......................................................................................................................9
Installing the Hard Drive......................................................................................................................10
Removing the Optical Drive................................................................................................................10
Installing the Optical Drive..................................................................................................................12
Removing the Intrusion Switch...........................................................................................................12
Installing the Intrusion Switch.............................................................................................................13
Removing the Memory........................................................................................................................13
Installing the Memory..........................................................................................................................13
Removing the PCIe SSD Card............................................................................................................. 14
Installing the PCIe SSD Card............................................................................................................... 14
Removing the Expansion Card............................................................................................................16
Installing the Expansion Card..............................................................................................................16
Removing the Power Supply...............................................................................................................16
Installing the Power Supply.................................................................................................................17
Removing the Power Switch...............................................................................................................18
Installing the Power Switch.................................................................................................................18
Removing the System Fan...................................................................................................................19
Installing the System Fan.....................................................................................................................19
Removing the Heatsink Fan Cover..................................................................................................... 19
Installing the Heatsink Fan Cover.......................................................................................................20
Removing the Heatsink Assembly......................................................................................................20
Installing the Heatsink Assembly.........................................................................................................21
Removing the System Board...............................................................................................................21
Installing the System Board................................................................................................................ 23
System Board Components................................................................................................................24
3 Using The System Setup Program And Boot Manager................................ 26
3

Boot Sequence....................................................................................................................................26
Navigation Keys................................................................................................................................... 27
System Setup Options.........................................................................................................................27
Updating the BIOS ..............................................................................................................................35
Jumper Settings.................................................................................................................................. 36
System and Setup Password...............................................................................................................36
Assigning a System Password and Setup Password.....................................................................37
Deleting or Changing an Existing System and/or Setup Password.............................................37
Disabling a System Password....................................................................................................... 38
Diagnostics..........................................................................................................................................38
Enhanced Pre-Boot System Assessment (ePSA) Diagnostics..................................................... 38
Troubleshooting Your Computer.......................................................................................................39
Power LED Diagnostics.................................................................................................................39
Beep Code.....................................................................................................................................40
Error Messages..............................................................................................................................40
4 Specifications......................................................................................................45
5 Contacting Dell................................................................................................... 51
4

1
Working on Your Computer
Before Working Inside Your Computer
Use the following safety guidelines to help protect your computer from potential damage and to help to
ensure your personal safety. Unless otherwise noted, each procedure included in this document assumes
that the following conditions exist:
• You have read the safety information that shipped with your computer.
• A component can be replaced or--if purchased separately--installed by performing the removal
procedure in reverse order.
WARNING: Disconnect all power sources before opening the computer cover or panels. After you
finish working inside the computer, replace all covers, panels, and screws before connecting to
the power source.
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: Many repairs may only be done by a certified service technician. You should only
perform troubleshooting and simple repairs as authorized in your product documentation, or as
directed by the online or telephone service and support team. Damage due to servicing that is
not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that came with the product.
CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or
by periodically touching an unpainted metal surface, such as a connector on the back of the
computer.
CAUTION: Handle components and cards with care. Do not touch the components or contacts
on a card. Hold a card by its edges or by its metal mounting bracket. Hold a component such as a
processor by its edges, not by its pins.
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.
NOTE: The color of your computer and certain components may appear differently than shown in
this document.
To avoid damaging your computer, perform the following steps before you begin working inside the
computer.
1. Ensure that your work surface is flat and clean to prevent the computer cover from being scratched.
2. Turn off your computer (see Turning Off Your Computer).
5

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 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 computer is unplugged to ground the system board.
6. Remove the cover.
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.
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:
• In Window 10:
1. Click or touch Start .
2. In the dropdown displayed select the and select Shut Down.
• In Windows 8:
– Using a touch-enabled device:
a. Swipe in from the right edge of the screen, opening the Charms menu and select
Settings.
b. Select the and then select Shut down
– Using a mouse:
a. Point to upper-right corner of the screen and click Settings.
b. Click the and select Shut down.
• In Windows 7:
1. Click Start .
2. Click Shut Down.
or
1. Click Start .
2. Click the arrow in the lower-right corner of the Start menu as shown below, and then click
Shut Down..
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 6 seconds to turn them off.
6

After Working Inside Your Computer
After you complete any replacement procedure, ensure that you connect any external devices, cards, and
cables before turning on your computer.
1. Replace the cover.
CAUTION: To connect a network cable, first plug the cable into the network device and then
plug it into the computer.
2. Connect any telephone or network cables to your computer.
3. Connect your computer and all attached devices to their electrical outlets.
4. Turn on your computer.
5. If required, verify that the computer works correctly by running Dell Diagnostics.
7

2
Removing and Installing Components
This section provides detailed information on how to remove or install the components from your
computer.
Recommended Tools
The procedures in this document may require the following tools:
• Small flat-blade screwdriver
• Phillips screwdriver
• Small plastic scribe
Removing the Cover
1. Follow the procedures in Before Working Inside Your Computer.
2. Perform the following steps
a. Release the blue latch and slide the cover [1,2].
b. Remove the cover from the computer [3].
Installing the Cover
1. Align the cover along its tabs on the chassis of the computer.
2. Push the cover until its secured by latch.
8

3. Follow the procedures in After Working Inside Your Computer.
Removing the Front Bezel
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the cover.
3. Perform the following steps
a. Lift the retention clips and release the front bezel [1].
b. Lift up the front bezel to remove it from the computer [2].
Installing the Front Bezel
1. Insert the hooks along the bottom edge of the front bezel into the slots on the chassis front.
2. Rotate the bezel toward the computer to engage the front-bezel retention clips until they click into
place.
3. Install the cover.
4. Follow the procedures in After Working Inside Your Computer.
Removing the Hard Drive
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the cover.
3. Disconnect the data cable and the power cable from the back of the hard drive. And lift the hard-
drive bracket out of the hard-drive bay [1,2].
9

4. Flex the hard-drive bracket and remove the hard drive from the hard-drive bracket [1,2].
Installing the Hard Drive
1. Insert the hard drive into the hard-drive bracket.
2. Press the securing brackets inward and slide the hard-drive bracket into the bay.
3. Connect the data cable and the power cable to the back of the hard-drive.
4. Install the cover.
5. Follow the procedures in After Working Inside Your Computer.
Removing the Optical Drive
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove:
a. cover
b. front bezel
3. Perform the following steps:
10

a. Unroute the cable [1].
b. Slide and hold the optical-drive latch to unlock the optical drive [2].
4. Perform the following steps:
a. Lift the optical drive bay [1].
b. Disconnect the data cable and the power cable from the back of the optical drive [2].
c. Slide and remove the optical drive from the computer.
5. Release the blue latch and slide the optical drive and remove from the optical drive bracket.
11

6. Repeat steps 3 and 4 to remove the second optical drive (if available).
Installing the Optical Drive
1. Slide the optical drive into the drive bay until it snaps.
2. Place the optical drive into the computer.
3. Connect the data cable and power cable to the back of the optical drive.
4. Push the optical drive till it is secured by the optical-drive latch.
5. Route the cable.
6. Install:
a. front bezel
b. cover
7. Follow the procedures in After Working Inside Your Computer.
Removing the Intrusion Switch
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the cover.
3. Perform the following steps:
a. Disconnect the intrusion-switch cable from the system board [1], [2].
b. Slide the intrusion switch and remove it from the computer [3].
12

Installing the Intrusion Switch
1. Insert the intrusion switch into its place in the chassis .
2. Connect the intrusion cable to the system board.
3. Install the cover.
4. Follow the procedures in After Working Inside Your Computer.
Removing the Memory
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the cover.
3. Press down on the memory retaining tabs on each side of the memory modules, and lift the memory
modules out of the connectors on the system board.
Installing the Memory
1. Align the notch on the memory-card with the tab in the system-board connector.
2. Press down on the memory module until the release tabs spring back to secure them in place.
3. Install the cover.
4. Follow the procedures in After Working Inside Your Computer.
13

Removing the PCIe SSD Card
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the cover.
3. Remove the screw that secures the PCIe SSD card..
4. Slide and lift the PCIe SSD card from the computer.
5. Lift the thermal pad from the system board.
Installing the PCIe SSD Card
Out of Box:
1. PCIe SSD card
2. Thermal Pad
3. Screw
1. Remove the blue adhesive tape from the thermal pad.
14

2. Place the thermal pad on the system board and remove the white adhesive tape [1,2].
3. Slide the PCIe SSD card into the slot and tighten the screw to secure it [12].
4. Install the cover.
15

5. Follow the procedures in After Working Inside Your Computer.
Removing the Expansion Card
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the cover.
3. Pull the release lever away from the PCI card until you release the securing tab from the dent in the
card. Lift the card out of its connector and remove it from the system board [1,2].
Installing the Expansion Card
1. Insert the expansion card in the connector on the system board and press down until secured.
2. Install the cover.
3. Follow the procedures in After Working Inside Your Computer.
Removing the Power Supply
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove:
a. cover
b. front bezel
c. hard drive
d. optical drive
e. heatsink fan cover
3. Disconnect the 4-pin power cables from the system board and release the cable from the tab.
Unroute the power cable [1,2,3].
16

4. Perform the following steps:
a. Remove the screws that secure the power supply to the back of the computer [1].
b. Push in on the blue release tab beside the power supply [2].
c. Lift and remove the power supply out of the computer [3].
Installing the Power Supply
1. Slide the PSU towards the back of the computer until it snaps into place.
2. Replace the screws to secure the power supply unit to the computer.
3. Route the PSU cables through the placeholder.
4. Connect the PSU cables to their connectors on the system board.
5. Install:
17

a. heatsink fan cover
b. optical drive
c. hard drive
d. front bezel
e. cover
6. Follow the procedures in After Working Inside Your Computer.
Removing the Power Switch
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove:
a. cover
b. front bezel
c. hard drive
d. optical drive
e. heatsink fan cover
f. power supply unit
3. Disconnect the power switch cable. Press the securing-bracket tabs inwards and lift the power
switch out of the chassis [1,2,3].
Installing the Power Switch
1. Insert the power switch into the chassis.
2. Press the securing brackets inward and slide the power switch.
3. Connect the power switch cable.
4. Install:
a. power supply unit
b. heatsink fan cover
c. optical drive
d. hard drive
e. front bezel
f. cover
18

5. Follow the procedures in After Working Inside Your Computer.
Removing the System Fan
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove:
a. cover
b. front bezel
c. hard drive
d. optical drive
3. Perform the following steps:
a. Disconnect the system-fan cable from the connector on the system board [1].
b. Pry the system fan away from the four grommets securing it to the back of the computer [2].
c. Lift the system fan from the computer [3].
Installing the System Fan
1. Place the system fan in the chassis.
2. Pass the four grommets through the chassis and slide outward along the groove to secure in place.
3. Connect the system-fan cable to the system board.
4. Install:
a. optical drive
b. hard drive
c. front bezel
d. cover
5. Follow the procedures in After Working Inside Your Computer.
Removing the Heatsink Fan Cover
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the cover
3. Perform the following steps
19

a. Slide the heatsink fan cover outward direction [1].
b. Remove the heatsink fan cover [2].
Installing the Heatsink Fan Cover
1. Place the heatsink fan cover.
2. Press until it clicks into place.
3. Install the cover.
4. Follow the procedures in After Working Inside Your Computer.
Removing the Heatsink Assembly
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove:.
a. cover
b. front bezel
c. hard drive
d. optical drive
e. heatsink fan cover
3. Disconnect the heatsink cable from the system board. Loosen the captive screws in diagonal order
and lift the heatsink assembly away from the computer [1,2,3].
20