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Dell Precision Tower 7810
Owner's Manual
Regulatory Model: D01T
Regulatory Type: D01T005
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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 © 2014 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.
2014 - 09
Rev. A00
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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
System Overview...................................................................................................................................9
Removing the Power Supply Unit (PSU)..............................................................................................11
Installing the Power Supply Unit (PSU)............................................................................................... 12
Removing the Computer Cover..........................................................................................................12
Installing the Computer Cover............................................................................................................13
Removing the Front Bezel...................................................................................................................13
Installing the Front Bezel.....................................................................................................................14
Removing the Slim Line Optical Drive ...............................................................................................14
Installing the Slim Line Optical Drive ................................................................................................. 17
Removing the Hard Drive.................................................................................................................... 17
Installing the Hard Drive .................................................................................................................... 20
Removing the HDD Thermal Sensor..................................................................................................20
Installing the HDD Thermal Sensor.................................................................................................... 21
Removing the Input/Output (I/O) Panel.............................................................................................21
Installing the Input/Output (I/O) Panel...............................................................................................23
Removing the Memory Shroud.......................................................................................................... 23
Installing the Memory Shroud............................................................................................................ 24
Removing the Memory....................................................................................................................... 24
Installing the Memory......................................................................................................................... 25
Removing the Coin-Cell Battery........................................................................................................ 25
Installing the Coin-Cell Battery.......................................................................................................... 25
Removing the Heatsink Assembly...................................................................................................... 25
Installing the Heatsink Assembly........................................................................................................ 26
Removing the Heatsink Fan................................................................................................................26
Installing the Heatsink Fan.................................................................................................................. 27
Removing the Processor.....................................................................................................................28
Installing the Processor.......................................................................................................................29
Removing the PCI Card...................................................................................................................... 29
Installing the PCI Card........................................................................................................................ 30
Removing the PCIe-Card Retention.................................................................................................. 30
Installing the PCIe card retention....................................................................................................... 31
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Removing the System-Fan Assembly................................................................................................. 31
Installing the System-Fan Assembly...................................................................................................34
Removing the PSU Card..................................................................................................................... 34
Installing the PSU Card........................................................................................................................35
Removing the Speaker........................................................................................................................36
Installing the Speaker..........................................................................................................................36
System Board Components................................................................................................................36
Removing the System Board.............................................................................................................. 38
Installing the System Board................................................................................................................ 39
3 Additional Information...................................................................................... 41
Memory Module Guidelines................................................................................................................41
Power Supply Unit (PSU) Lock............................................................................................................ 41
4 System Setup.......................................................................................................43
Boot Sequence....................................................................................................................................43
Navigation Keys...................................................................................................................................43
System Setup Options........................................................................................................................ 44
Updating the BIOS ..............................................................................................................................52
System and Setup Password...............................................................................................................53
Assigning a System Password and Setup Password.....................................................................53
Deleting or Changing an Existing System and/or Setup Password.............................................54
Disabling a System Password....................................................................................................... 54
5 Diagnostics.......................................................................................................... 56
Enhanced Pre-Boot System Assessment (ePSA) Diagnostics........................................................... 56
6 Troubleshooting Your Computer....................................................................57
Diagnostic LEDs...................................................................................................................................57
Error Messages.................................................................................................................................... 59
Errors That Halt Your Computer Completely.............................................................................. 59
Errors That Do Not Halt Your Computer..................................................................................... 60
Errors That Soft Halt Your Computer...........................................................................................60
7 Technical Specifications....................................................................................62
8 Contacting Dell...................................................................................................68
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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
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.
www.dell.com/regulatory_compliance
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).
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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 Windows 8.1:
– 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.
Or
* On the Home screen, touch 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.
Or
* On the Home screen, click and then select Shut down.
• In Windows 7:
1. Click Start .
2. Click Shut Down.
or
1. Click Start .
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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.
After Working Inside Your Computer
After you complete any replacement procedure, ensure 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 the Dell Diagnostics.
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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 slotted-tip screwdriver
• #2 Phillips screwdriver
• #1 Phillips screwdriver
• Small plastic scribe
For how-to videos, documentation, and troubleshooting solutions, scan this QR code, or click here:
http://www.Dell.com/QRL/Workstation/T7810
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System Overview
Figure 1. Front and Back View of T7810 Computer
1. microphone connector
2. power button/Power light
3. hard-drive activity light
4. USB 3.0 connector
5. USB 2.0 connectors
6. optical-drive (optional)
7. optical-drive eject button (optional)
8. optical-drive (optional)
9. optical-drive eject button (optional)
10. headphone connector
11. line-in/microphone connector
12. serial connector
13. USB 2.0 connectors
14. PS/2 Keyboard connector
15. USB 3.0 connectors
16. line-out connector
17. security cable slot
18. padlock ring
19. network connector
20. PS/2 Mouse connector
21. active expansion card slots
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22. mechanical slot
23. power cable connector
24. power-supply unit (PSU) release latch
Figure 2. Inside View of T7810 Computer
1. processor heatsink with integrated fan 2. front bezel
3. optical drive 4. hard drives
5. PSU cable shroud 6. graphics card
7. intrusion switch
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Figure 3. Inside View of T7810 Computer
1. speaker
2. system board
3. power-supply unit
4. memory shroud
5. PCIe card retention
Removing the Power Supply Unit (PSU)
1. Follow the procedures in Before Working Inside Your Computer.
2. If the PSU is locked, remove the screw to unlock the PSU. For more information, see the PSU Lock
Feature.
3. Perform the following steps as shown in the illustration:
a. Hold the handle bar and press down on the blue latch to release the PSU [1,2].
b. Hold the handle bar to slide the PSU out of the computer.
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Installing the Power Supply Unit (PSU)
1. Hold the PSU handle and slide the PSU into the computer.
2. Follow the procedures in After Working Inside Your Computer.
Removing the Computer Cover
1. Follow the procedures in Before Working Inside Your Computer.
2. Lift up the cover-release latch.
3. Lift the cover upward to a 45–degree angle, and remove it from the computer.
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Installing the Computer Cover
1. Place the computer cover on the chassis.
2. Press down on the computer cover until it clicks into place.
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 computer cover.
3. Pry the front bezel retention clips away from the chassis located at the edge of front bezel.
4. Rotate and pull the bezel panel away from the computer to release the hooks on the opposite edge
of the bezel from the chassis.
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Installing the Front Bezel
1. Insert the hooks along the bottom edge of the front panel into the slots on the chassis front.
2. Rotate the bezel towards the computer to engage the front-bezel retention clips until they click into
place.
3. Install the computer cover.
4. Follow the procedures in After Working Inside Your Computer.
Removing the Slim Line Optical Drive
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the computer cover.
3. Disconnect the data and power cables from the optical drive.
4. Unthread the cables from the latches.
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5. Press on the clasp to release the latch holding the cables on the side of the optical-drive cage.
6. Lift up the cables.
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7. Lift the release latch on top of the optical-drive cage.
8. Holding the release latch, slide the optical-drive cage from the optical-drive compartment.
9. Remove the screws that secure the optical drive to the optical-drive cage.
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10. Remove the screws that secure the optical drive to the optical-drive cage.
11. Remove the optical drive from the optical-drive cage.
Installing the Slim Line Optical Drive
1. Lift the release latch, and slide the optical-drive cage inside the compartment.
2. Press on the clasp to release the latch and thread the cables into the holder.
3. Connect the power cable to the back of the optical drive.
4. Connect the data cable to the back of the optical drive.
5. Install the computer cover.
6. 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 computer cover.
3. Disconnect the power supply and data cables from the hard drive.
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4. Press in on the latches on both sides of the hard-drive bracket.
5. Slide the hard drive out of the compartment.
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6. If a 2.5–inch hard drive is installed, remove the screws and lift up the drive to remove it from the
hard-drive caddy.
7. If a 3.5–inch hard drive is installed, flex the hard-drive bracket on both sides to loosen the hard drive.
8. Lift the hard drive in an upward direction to remove it from the hard-drive bracket.
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Installing the Hard Drive
1. If a 3.5–inch hard drive is installed on the computer, place the hard drive and press in on the latches
of the hard-drive caddy.
2. If a 2.5–inch hard drive is installed on the computer, place the hard drive on the hard-drive caddy
and tighten the screws to secure the hard drive.
3. Secure the hard-drive in the hard-drive cage and slide it inside the compartment.
4. Connect the hard-drive power supply cable and data cable.
5. Install the computer cover.
6. Follow the procedures in After Working Inside Your Computer.
Removing the HDD Thermal Sensor
NOTE: The HDD thermal sensor is an optional component and your computer may not ship with it.
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the computer cover.
3. Identify the HDD thermal sensor connected to the system board.
4. Disconnect the HDD thermal sensor cable from the system board.
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5. Release the latch that secures the HDD thermal sensor. Here, the HDD thermal sensor is attached to
the hard drive.
Installing the HDD Thermal Sensor
NOTE: The HDD thermal sensor is an optional component and your computer may not ship with it.
1. Connect the HDD thermal sensor to the SAS HDD component that you wish to monitor the
temperature, and secure it with the latch.
2. Attach the HDD thermal sensor cable to the system board.
3. Install the computer cover.
4. Follow the procedures in After Working Inside Your Computer.
Removing the Input/Output (I/O) Panel
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove:
a. computer cover
b. front bezel
3. Remove the screws that secure the I/O panel cage to the chassis.
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4. Remove the I/O panel cage from the chassis.
5. Disconnect the cables to release the I/O panel to remove it from the computer.
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6. Remove the screws that secure the I/O panel to the I/O panel cage.
7. Remove the I/O panel from the I/O panel cage.
Installing the Input/Output (I/O) Panel
1. Replace the I/O panel in the I/O panel cage.
2. Tighten the screws to secure the I/O panel to the I/O panel cage.
3. Connect the cables to the I/O panel.
4. Place the USB 3.0 module in its slot.
5. Tighten the screws that secure the USB 3.0 module to the I/O panel cage.
6. Replace the I/O panel cage into its slot.
7. Tighten the screws that secure I/O panel cage to the chassis.
8. Install:
a. front bezel
b. computer cover
9. Follow the procedures in After Working Inside Your Computer.
Removing the Memory Shroud
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove:
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a. computer cover
b. optical drive
3. Press down on the retention tab on the memory shroud and lift it from the computer.
Installing the Memory Shroud
1. Install the memory shroud module and press downwards until it clicks into place.
2. Install:
a. optical drive
b. computer cover
3. Follow the procedures in After Working Inside Your Computer.
Removing the Memory
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove:
a. computer cover
b. optical drive
c. memory shroud
3. Press down on the memory-securing clips on each side of the memory module, and lift the memory
module upwards to remove it from the computer.
NOTE: Tilting of DIMM during removal can cause damage to the DIMM.
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Installing the Memory
1. Insert the memory module into the memory socket.
2. Press down on the memory module until the securing clips secure the memory in place.
NOTE: Tilting of DIMM during insertion can cause damage to the DIMM.
3. Install:
a. memory shroud
b. optical drive
c. computer cover
4. Follow the procedures in After Working Inside Your Computer.
Removing the Coin-Cell Battery
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove:
a. computer cover
b. PCIe cards (slot 2 – optional)
3. Press the release latch away from the battery to allow the battery to pop-up from the socket. Lift the
coin-cell battery out of the computer.
Installing the Coin-Cell Battery
1. Place the coin-cell battery into the slot on the system board.
2. Press the coin-cell battery downward until the release latch springs back into place and secures it.
3. Install:
a. PCIe cards(slot 2 – optional)
b. computer 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. computer cover
b. optical drive (required only for the removal of heatsink assembly for CPU1)
3. Perform the following steps:
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a. Disconnect the heatsink fan cable from the system board [1].
b. Loosen the captive screws that secure the heatsink assembly [2].
c. Lift up the heatsink and remove it from the computer [3].
4. Repeat Step 4 to remove the second heatsink module from the computer.
Installing the Heatsink Assembly
1. Place the heatsink assembly inside the computer.
2. Tighten the captive screws to secure the heatsink assembly to the system board.
NOTE: Misalignment of screws can damage the system.
3. Connect the heatsink assembly cable to the system board.
4. Install:
a. optical drive (required only for the removal of heatsink assembly for CPU1)
b. computer cover
5. Follow the procedures in After Working Inside Your Computer.
Removing the Heatsink Fan
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove:
a. computer cover
b. optical drive (Required only for the removal of heatsink for CPU1)
c. heatsink assembly
3. Slide out the grommets that secure the heatsink fan to the heatsink assembly.
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4. Slide the heatsink fan from the heatsink assembly.
Installing the Heatsink Fan
1. Slide the heatsink fan into heatsink assembly.
2. Plug in the grommets to secure the heatsink fan to the heatsink assembly.
3. Install:
a. heatsink assembly
b. optical drive (required only for the installation of heatsink for CPU1)
c. computer cover
4. Follow the procedures in After Working Inside Your Computer.
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Removing the Processor
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove:
a. computer cover
b. optical drive (required only for the removal of CPU1).
c. heatsink assembly
3. To remove the processor:
NOTE: The processor cover is secured by two levers. They have icons that indicate which lever
needs to be opened first and which lever closes first.
a. Press down on the first lever that holds the processor cover in place and release it sideways from
its retention hook [1].
b. Repeat step 'a' to release the second lever from its retention hook [2].
c. Lift up the lever from its retention hook [3].
d. Press down on the first lever [4].
e. Lift and remove the processor cover [5].
f. Lift the processor to remove it from the socket and place it in antistatic package [6].
NOTE: Damaging pins during removal of the processor can cause damage to the processor.
4. Repeat the above steps to remove the second processor (if available) from the computer.
To verify if your computer has dual processor slots, see the System Board components.
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Installing the Processor
1. Place the processor in its socket.
2. Replace the processor cover.
NOTE: The processor cover is secured by two levers. They have icons that indicate which lever
needs to be opened first and which lever closes first.
3. Slide the first lever sideways into the retention hook to secure the processor.
4. Repeat step '3' to slide the second lever into the retention hook.
5. Install:
a. heatsink assembly
b. optical drive (required only for the installation of CPU1).
c. computer cover
6. Follow the procedures in After Working Inside Your Computer.
Removing the PCI Card
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the computer cover.
3. Open the plastic latch fastening the PCI card in its slot.
4. Press down the latch and pull the PCI card away from the computer.
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Installing the PCI Card
1. Push the expansion card into the card slot and secure the latch.
2. Install the plastic latch that secures the PCI card to the card slot.
3. Install the computer cover.
4. Follow the procedures in After Working Inside Your Computer.
Removing the PCIe-Card Retention
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove:
a. computer cover
b. PCIe cards
3. Perform the following steps as shown in the illustration:
a. Unthread the cable from the clips [1].
b. Press and slide the latch out to release the PCIe-card retention [2].
c. Remove the PCIe-card retention out of the computer [3].
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Installing the PCIe card retention
1. Place the PCIe card retention in its slot and insert the latches.
2. Route the cables through the clips to secure them.
3. Install:
a. PCIe cards
b. computer cover
4. Follow the procedures in After Working Inside Your Computer.
Removing the System-Fan Assembly
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove:
a. computer cover
b. optical drive
c. PCIe-card retention
d. memory shroud
e. system board
3. Unthread the system-board cable from the clip.
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4. Remove the screws that secure the drive bay.
5. Perform the following steps as shown in the illustration:
a. Remove the screws that secure system-fan assembly to the chassis [1].
b. Lift and remove the system-fan assembly from the chassis [2].
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6. Pry away the grommets to remove the system fans from the system-fan assembly.
CAUTION: Using excessive force may damage the grommets.
7. Remove the system fans from the system-fan assembly.
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Installing the System-Fan Assembly
1. Place the system fans in the system-fan assembly and attach the grommets.
2. Place the system-fan assembly in the chassis and connect the screws to secure the system-fan
assembly to the chassis..
3. Install the system board.
4. Connect the system-fan cables to their connectors on the system board.
5. Route the system-fan cables out of the opening in the system-fan module in the direction of the
system board.
6. Connect the screws that secure the drive bay.
7. Route and connect the system-board cable to its connector.
8. Install:
a. PCIe-card retention
b. memory shroud
c. optical drive
d. computer cover
9. Follow the procedures in After Working Inside Your Computer.
Removing the PSU Card
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove:
a. computer cover
b. PSU
3. Perform the following steps as shown in the illustration:
a. Slide the PSU cable shroud from its slot towards the front [1].
b. Remove the PSU cable shroud from the computer [2].
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4. Perform the following steps as shown in the illustration:
a. Disconnect the power cables from the PSU card [1].
b. Remove the screws securing the PSU card to the chassis [2].
c. Remove the PSU card from the computer [3].
Installing the PSU Card
1. Replace the PSU card in its slot.
2. Tighten the screws to secure the PSU card in its slot.
3. Connect the power cables to the connectors on the PSU card.
4. Replace the PSU cable shroud in its slot.
5. Install:
a. PSU
b. computer cover
6. Follow the procedures in After Working Inside Your Computer.
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Removing the Speaker
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the computer cover.
3. Disconnect the speaker cable from the system board.
4. Press down the clasp, lift and remove the speaker.
Installing the Speaker
1. Replace the speaker and fix the clasp.
2. Connect the speaker cable to the system board.
3. Install the computer cover.
4. Follow the procedures in After Working Inside Your Computer.
System Board Components
The following image displays the system board components .
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1. PCI slot (slot 6) 2. PCIe x16 slot (PCIe 2.0 wired as x4) (slot 5)
3. PCIe 3.0 x16 slot (slot 4) 4. PCIe 2.0 x1 slot (slot 3)
5. PCIe 3.0 x16 slot (slot 2) 6. PCIe x16 slot (PCIe 3.0 wired as x8) (slot 1)
7. intrusion-switch connector 8. DIMM slots (available only when optional
9. CPU2 fan connector 10. processor socket 2
11. DIMM slots (available only when optional
second processor is installed)
13. CPU1 fan connector 14. CPU1 power connector
15. HDD1 fan connector 16. system-fan connector
17. DIMM slots 18. processor socket 1
19. system-fan 1 connector 20. DIMM slots
21. thunderbolt sideband connector 22. HDD temp sensor
23. system-fan connector 24. internal speaker connector
25. remote power button connector 26. front panel I/O connector
27. USB 3.0 front panel connector 28. internal USB 2.0 connector for flexbay
29. password jumper 30. main power connector
31. coin-cell battery 32. SATA connectors (HDD-HDD3 & SATA0–1)
33. internal USB type A connector 34. CPU2 power connector
second processor is installed)
12. front-panel audio connector
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Removing the System Board
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the:
a. computer cover
b. optical drive
c. memory shroud
d. heatsink assembly
e. PCIe card
f. PCIe-card retention
g. memory module(s)
h. processor
3. Disconnect all the cables from the system board connectors.
4. Remove the screws that secure the system board to the chassis.
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5. Slide and lift the system board in an upward direction [1, 2].
6. Remove the system board from the computer.
Installing the System Board
1. Align the system board to the port connectors on the back of the chassis and place the system board
in the chassis.
2. Tighten the screws that secure the system board to the chassis.
3. Connect all the cables to the system board connectors.
4. Install the:
a. processor
b. memory module(s)
c. PCIe-card retention
d. PCIe card
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e. heatsink assembly
f. memory shroud
g. optical drive
h. computer cover
5. Follow the procedures in After Working Inside Your Computer.
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Additional Information
This section provides information for the additional features that are part of your computer.
Memory Module Guidelines
To ensure optimal performance of your computer, observe the following general guidelines when
configuring your system memory:
• Memory modules of different sizes can be mixed (for example, 2 GB and 4 GB). But, all populated
channels must have identical configurations.
• Memory modules must be installed beginning with the first socket.
NOTE: Registered DIMMS (R-DIMMs) and Load Reduced DIMMS (LR-DIMMs) cannot be mixed.
• If memory modules with different speeds are installed, they operate at the speed of the slowest
installed memory modules.
NOTE: If all DIMMs are 2133, the CPU ordered may run the memory at a slower speed.
Power Supply Unit (PSU) Lock
The PSU lock prevents the removal of the PSU from the chassis.
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NOTE: To lock or unlock the PSU, always ensure that the cover of the chassis is removed.
To secure the PSU, remove the screw from the unlock screw location and tighten the screw to the lock
location. Similarly, to unlock the PSU, remove the screw from the lock screw location and tighten the
screw to the unlock screw location.
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System Setup
System Setup enables you to manage your computer hardware and specify BIOS‐level options. From the
System Setup, you can:
• Change the NVRAM settings after you add or remove hardware
• View the system hardware configuration
• Enable or disable integrated devices
• Set performance and power management thresholds
• Manage your computer security
Boot Sequence
Boot Sequence allows you to bypass the System Setup‐defined boot device order and boot directly to a
specific device (for example: optical drive or hard drive). During the Power-on Self Test (POST), when the
Dell logo appears, you can:
• Access System Setup by pressing <F2> key
• Bring up the one-time boot menu by pressing <F12> key
The one-time boot menu displays the devices that you can boot from including the diagnostic option.
The boot-menu options are:
• Removable Drive (if available)
• STXXXX Drive
NOTE: XXX denotes the SATA drive number.
• Optical Drive
• Diagnostics
NOTE: Choosing Diagnostics, will display the ePSA diagnostics screen.
The boot sequence screen also displays the option to access the System Setup screen.
Navigation Keys
The following table displays the system setup navigation keys.
NOTE: For most of the system setup options, changes that you make are recorded but do not take
effect until you re-start the system.
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Table 1. Navigation Keys
Keys Navigation
Up arrow Moves to the previous field.
Down arrow Moves to the next field.
<Enter> Allows you to select a value in the selected field (if applicable) or follow the link in
the field.
Spacebar Expands or collapses a drop‐down list, if applicable.
<Tab> Moves to the next focus area.
NOTE: For the standard graphics browser only.
<Esc> Moves to the previous page till you view the main screen. Pressing <Esc> in the main
screen displays a message that prompts you to save any unsaved changes and
restarts the system.
<F1> Displays the System Setup help file.
System Setup Options
NOTE: Depending on your computer and its installed devices, the items listed in this section may or
may not appear.
Table 2. General
Option Description
System Information This section lists the primary hardware
features of your computer.
• System Information
• Memory Configuration
• Processor Information
• Device Information
• PCI Information
Boot Sequence Allows you to change the order in which
the computer attempts to find an
operating system.
• Diskette Drive
• USB Storage Device
• CD/DVD/CD-RW Drive
• Onboard NIC
• Internal HDD
Boot List Option Allows you to change the boot list
option.
• Legacy
• UEFI
Advanced Boot Options Allows you to Enable Legacy Option
ROMs
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Option Description
• Enable Legacy Option ROMs
(Default)
Date/Time Allows you to set the date and time. The
changes to the system date and time
takes effect immediately.
Table 3. System Configuration
Option Description
Integrated NIC Allows you to configure the integrated network controller. The
options are:
• Enable UEFI Network Stack
• Disabled
NOTE: You can use the Disabled option, only if Active
Management Technology (AMT) option is disabled.
• Enabled
• Enabled w/PXE (Default)
Integrated NIC 2 Allows you to configure the
integrated network controller. The
options are:
• Enabled (Default)
• Enabled w/PXE
NOTE: This feature is supported
only on Tower 7910.
Serial Port Identifies and defines the serial port settings. You can set the
serial port to:
• Disabled
• COM1 (Default)
• COM2
• COM3
• COM4
NOTE: The operating system may allocate resources even if
the setting is disabled.
SATA Operation
Tower 5810 and Tower 7810
Allows you to configure the internal
SATA hard-drive controller. The
options are:
• Disabled
• ATA
• AHCI
• RAID On (Default)
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Option Description
NOTE: SATA is configured to
support RAID mode. No SATA
operation support in Tower 7910.
Tower 7910
Drives
Tower 5810 and Tower 7810
Tower 7910
Allows you to configure the internal SATA hard-drive controller.
The options are:
• Disabled
• ATA
• AHCI (Default)
NOTE: SATA is configured to support RAID mode. No SATA
operation support in Tower 7910.
Allows you to configure the SATA drives on board. The options
are:
• HDD–0
• HDD–1
• HDD–2
• HDD–3
• ODD–0
• ODD–1
Default Setting: All drives are enabled.
NOTE: If the hard drives are connected to a RAID controller
card, the hard drives will display {none} in all the fields. The
hard drives can be seen in the RAID controller card BIOS.
• SATA–0
• SATA–1
Default Setting: All drives are enabled.
NOTE: If the hard drives are connected to a RAID controller
card, the hard drives will display {none} in all the fields. The
hard drives can be seen in the RAID controller card BIOS.
SMART Reporting This field controls if the hard drive errors for the integrated
drives are reported during system startup. This technology is
part of the SMART (Self Monitoring Analysis and Reporting
Technology) specification.
• Enable SMART Reporting - This option is disabled by default.
USB Configuration Allows you to enable or disable the internal USB configuration.
The options are:
• Enable Boot Support
• Enable Front USB Ports
• Enable internal USB ports
• Enable rear USB Ports
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Option Description
SAS RAID Controller (Tower 7910
only)
Allows you to control the operation
of the integrated SAS RAID HDD
controller.
• Enabled (Default)
• Disabled.
HDD Fans Allows you to control the HDD fans.
Default Setting: depends on the system configuration
Audio Allows you enable or disable the audio feature.
• Enable Audio (Default)
Memory Map IO above 4GB Allows you enable or disable Memory
Map IO above 4GB.
• Memory Map IO above 4GB - This
option is disabled by default.
Thunderbolt Allows you to enable or disable Thunderbolt device support
capability.
• Enabled
• Disabled (Default)
Miscellaneous devices Allows you to enable or disable
various on board devices.
• Enable PCI Slot
PCI MMIO Space Size This field controls the balance of 32-
bit memory available between PCI
(memory-mapped IO) and the
operating system.
• Small (Default)
• Large
Table 4. Video
Option Description
Primary Video Slot Allows you to configure primary boot
video device. The options are:
• Auto (Default)
• SLOT 1
• SLOT 2: VGA Compatible
• SLOT 3
• SLOT 4
• SLOT 5
• SLOT 6 ( Tower 5810 and Tower
7810 only)
• SLOT1_CPU2: VGA Compatible
(Tower 7910 only)
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Option Description
• SLOT2_CPU2 (Tower 7910 only)
Table 5. Security
Option Description
Strong Password Allows you to enforce the option to always set strong passwords.
Default Setting: Enable Strong Password is not selected.
Password
You can define the length of your password. Min = 4 , Max = 32
Configuration
Password Bypass Allows you to enable or disable the permission to bypass the System password,
when it is set. The options are:
• Disabled (Default)
• Reboot bypass
Password Change Allows you to enable the disable permission to the System passwords when the
administrator password is set.
Default Setting: Allow Non-Admin Password Changes is selected
TPM Security Allows you to enable the Trusted Platform Module (TPM) during POST.
Default Setting: The option is disabled.
Computrace (R) Allows you to activate or disable the optional Computrace software. The
options are:
• Deactivate (Default)
• Disable
• Activate
CPU XD Support Allows you to enable the Execute Disable mode of the processor.
• Enable CPU XD Support (Default)
OROM Keyboard
Access
Allows you to determine whether users are able to enter Option ROM
Configuration screens via hotkeys during boot. The options are:
• Enable (Default)
• One Time Enable
• Disable
Admin Setup Lockout Allows you to prevent users from entering Setup when an administrator
password is set.
• Enable Admin Setup Lockout
Default Setting: The option is disabled.
Table 6. Secure Boot
Option Description
Secure Boot Enable Allows you to enable or disable the
Secure Boot Feature. The options are:
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Option Description
• Disabled (Default)
• Enabled
Expert Key Management Allows you to enable or disable Custom
Mode Key Management.
• Disabled (Default)
Table 7. Performance
Option Description
Multi Core Support This field specifies whether the
processor will have one or all cores
enabled. The performance of some
applications will improve with the
additional cores. This option is enabled
by default. Allows you to enable or
disable multi-core support for the
processor. The options are:
• All (Default)
• 1
• 2
• 4
• 5
• 6
• 7
• 8
• 9
NOTE:
• The options displayed could be
different depending on the
installed processor(s).
• The options depend on the
number of cores supported by
the installed processor (All, 1, 2,
N-1 for N-Core Processors)
Intel SpeedStep
Allows you to enable or disable the Intel
SpeedStep feature.
Default Setting: Enable Intel SpeedStep
C States Allows you to enable or disable the
additional processor sleep states.
Default Setting: Enabled
Limit CPUID Value This field limits the maximum value the
processor Standard CPUID Function will
support.
• Enable CPUID Limit
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Option Description
Default Setting: The option is disabled.
Intel TurboBoost Allows you to enable or disable the Intel
TurboBoost mode of the processor.
Default Setting: Enable Intel
TurboBoost
Hyper-Thread Control Allows you to enable or disable the
HyperThreading in the processor.
Default Setting: Enabled
Cache Prefetch
Default Setting: Enable Hardware
Prefetch and Adjacent Cache Line
Prefetch
Dell Reliable Memory Technology (RMT) Allows you to identify and isolate
memory errors in system RAM..
Default Setting: Enable Dell Reliable
Memory Technology (RMT)
Table 8. Power Management
Option Description
AC Recovery Specifies how the computer will respond when AC power is applied after a AC
power loss. You can set the AC Recovery to:
• Power Off (Default)
• Power On
• Last Power State
Auto On Time Allows you to set the time at which the computer must turn on automatically.
The options are:
• Disabled (Default)
• Every Day
• Weekdays
• Select Days
Deep Sleep Control Allows you to define the controls when Deep Sleep is enabled.
• Disabled (Default)
• Enabled in S5 only
• Enabled in S4 and S5
Fan Speed Control Allows you to control the speed of the system fan. The options are:
• Auto (Default)
• Medium low
• Medium high
• Medium
• High
• Low
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Option Description
USB Wake Support Allows you to enable USB devices to wake the system from standby.
• Enable USB Wake Support
Default Setting: The option is disabled.
Wake on LAN This option allows the computer to power up from the off state when triggered
by a special LAN signal. Wake-up from the Standby state is unaffected by this
setting and must be enabled in the operating system. This feature only works
when the computer is connected to AC power supply.
• Disabled - Does not allow the system to power on by special LAN signals
when it receives a wake-up signal from the LAN or wireless LAN.
• LAN Only - Allows the system to be powered on by special LAN signals.
• LAN with PXE Boot - Allows the system to power on and immediately boot
to PXE when it receives a wake-up packet sent to the system in either the S4
or S5 state.
This option is Disabled by default.
Block Sleep Allows you to block entering to sleep (S3 state) in OS Environment.
Default Setting: Disabled
Table 9. POST Behavior
Option Description
Numlock LED Specifies if the NumLock function can be enabled when the system boots. This
option is enabled by default.
Keyboard Errors Specifies whether keyboard related errors are reported when it boots. This
option is enabled by default.
Fastboot Allows you to speed up the boot process by bypassing some compatibility steps.
The options are:
• Minimal
• Thorough - This option is enabled by default.
• Auto
Table 10. Virtualization Support
Option Description
Virtualization This option specifies whether a Virtual Machine Monitor (VMM) can utilize the
additional hardware capabilities provided by Intel Virtualization technology.
• Enable Intel Virtualization Technology - This option is enabled by default.
VT for Direct I/O Enables or disables the Virtual Machine Monitor (VMM) from utilizing the
additional hardware capabilities provided by Intel Virtualization technology for
direct I/O.
• Enable VT for Direct I/O - This option is enabled by default.
Trusted Execution Allows you to specify whether a Measured Virtual Machine Monitor (MVMM) can
utilize the additional hardware capabilities provided by Intel Trusted Execution
Program.
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Option Description
• Trusted Execution - This option is disabled by default.
Table 11. Maintenance
Option Description
Service Tag Displays the service tag of your computer.
Asset Tag Allows you to create a system asset tag if an asset tag is not already set. This
option is not set by default.
SERR Messages Controls the SERR message mechanism. This option is not set by default. Some
graphics cards require that the SERR message mechanism be disabled.
Table 12. System Logs
Option Description
BIOS events Displays the system event log and allows you to clear the log.
• Clear Log
Table 13. Engineering Configurations
Option Description
ASPM
• Auto (Default)
• L1 Only
• Disabled
• L0s and L1
• L0s Only
Pcie LinkSpeed
• Auto (Default)
• Gen1
• Gen2
• Gen3
Updating the BIOS
It is recommended to update your BIOS (system setup), on replacing the system board or if an update is
available. For laptops, ensure that your computer battery is fully charged and connected to a power
outlet
1. Re-start the computer.
2. Go to dell.com/support.
3. Enter the Service Tag or Express Service Code and click Submit.
NOTE: To locate the Service Tag, click Where is my Service Tag?
NOTE: If you cannot find your Service Tag, click Detect My Product. Proceed with the
instructions on screen.
4. If you are unable to locate or find the Service Tag, click the Product Category of your computer.
5. Choose the Product Type from the list.
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6. Select your computer model and the Product Support page of your computer appears.
7. Click Get drivers and click View All Drivers.
The Drivers and Downloads page opens.
8. On the Drivers and Downloads screen, under the Operating System drop-down list, select BIOS.
9. Identify the latest BIOS file and click Download File.
You can also analyze which drivers need an update. To do this for your product, click Analyze
System for Updates and follow the instructions on the screen.
10. Select your preferred download method in the Please select your download method below
window; click Download File.
The File Download window appears.
11. Click Save to save the file on your computer.
12. Click Run to install the updated BIOS settings on your computer.
Follow the instructions on the screen.
System and Setup Password
You can create a system password and a setup password to secure your computer.
Password Type Description
System password Password that you must enter to log on to your system.
Setup password Password that you must enter to access and make changes to the BIOS settings of
your computer.
CAUTION: The password features provide a basic level of security for the data on your computer.
CAUTION: Anyone can access the data stored on your computer if it is not locked and left
unattended.
NOTE: Your computer is shipped with the system and setup password feature disabled.
Assigning a System Password and Setup Password
You can assign a new System Password and/or Setup Password or change an existing System Password
and/or Setup Password only when Password Status is Unlocked. If the Password Status is Locked, you
cannot change the System Password.
NOTE: If the password jumper is disabled, the existing System Password and Setup Password are
deleted and you need not provide the system password to log on to the computer.
To enter a system setup, press <F2> immediately after a power-on or re-boot.
1. In the System BIOS or System Setup screen, select System Security and press <Enter>.
The System Security screen appears.
2. In the System Security screen, verify that Password Status is Unlocked.
3. Select System Password , enter your system password, and press <Enter> or <Tab>.
Use the following guidelines to assign the system password:
• A password can have up to 32 characters.
• The password can contain the numbers 0 through 9.
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• Only lower case letters are valid, upper case letters are not allowed.
• Only the following special characters are allowed: space, (”), (+), (,), (-), (.), (/), (;), ([), (\), (]), (`).
Re-enter the system password when prompted.
4. Type the system password that you entered earlier and click OK.
5. Select Setup Password, type your system password and press <Enter> or <Tab>.
A message prompts you to re-type the setup password.
6. Type the setup password that you entered earlier and click OK.
7. Press <Esc> and a message prompts you to save the changes.
8. Press <Y> to save the changes.
The computer reboots.
Deleting or Changing an Existing System and/or Setup Password
Ensure that the Password Status is Unlocked (in the System Setup) before attempting to delete or change
the existing System and/or Setup password. You cannot delete or change an existing System or Setup
password, if the Password Status is Locked.
To enter the System Setup, press <F2> immediately after a power-on or reboot.
1. In the System BIOS or System Setup screen, select System Security and press <Enter>.
The System Security screen is displayed.
2. In the System Security screen, verify that Password Status is Unlocked.
3. Select System Password, alter or delete the existing system password and press <Enter> or <Tab>.
4. Select Setup Password, alter or delete the existing setup password and press <Enter> or <Tab>.
NOTE: If you change the System and/or Setup password, re-enter the new password when
promoted. If you delete the System and/or Setup password, confirm the deletion when
promoted.
5. Press <Esc> and a message prompts you to save the changes.
6. Press <Y> to save the changes and exit from the System Setup.
The computer reboots.
Disabling a System Password
The system's software security features include a system password and a setup password. The password
jumper disables any password(s) currently in use. There are 2–pins for the PSWD jumper.
NOTE: The password jumper is disabled by default.
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the cover.
3. Identify the PSWD jumper on the system board. For identifying the PSWD jumper on the system
board, see the System Board Components.
4. Remove the PSWD jumper from the system board.
NOTE: The existing passwords are not disabled (erased) until the computer boots without the
jumper.
5. Install the cover.
NOTE: If you assign a new system and/or setup password with the PSWD jumper installed, the
system disables the new password(s) the next time it boots.
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6. Connect the computer to the electrical outlet and power-on the computer.
7. Power-off the computer and disconnect the power cable from the electrical outlet.
8. Remove the cover.
9. Replace the jumper on the pins.
10. Install the cover.
11. Follow the procedures in After Working Inside Your Computer.
12. Power-on the computer.
13. Go to the system setup, and assign a new system or setup password.
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5
Diagnostics
If you experience a problem with your computer, run the ePSA diagnostics before contacting Dell for
technical assistance. The purpose of running diagnostics is to test your computer's hardware without
requiring additional equipment or risking data loss. If you are unable to fix the problem yourself, service
and support personnel can use the diagnostics results to help you solve the problem.
Enhanced Pre-Boot System Assessment (ePSA) Diagnostics
The ePSA diagnostics (also known as system diagnostics) performs a complete check of your hardware.
The ePSA is embedded with the BIOS and is launched by the BIOS internally. The embedded system
diagnostics provides a set of options for particular devices or device groups allowing you to:
• Run tests automatically or in an interactive mode
• Repeat tests
• Display or save test results
• Run thorough tests to introduce additional test options to provide extra information about the failed
device(s)
• View status messages that inform you if tests are completed successfully
• View error messages that inform you of problems encountered during testing
CAUTION: Use the system diagnostics to test only your computer. Using this program with other
computers may cause invalid results or error messages.
NOTE: Some tests for specific devices require user interaction. Always ensure that you are present
at the computer terminal when the diagnostic tests are performed.
1. Power-on the computer.
2. As the computer boots, press the <F12> key as the Dell logo appears.
3. On the boot menu screen, select the Diagnostics option.
The Enhanced Pre-boot System Assessment window is displayed, listing all devices detected in the
computer. The diagnostics starts running the tests on all the detected devices.
NOTE: System may reboot before entering diagnostics depending on the configuration.
4. If you wish to run a diagnostic test on a specific device, press <Esc> and click Yes to stop the
diagnostic test.
5. Select the device from the left pane and click Run Tests.
6. If there are any issues, error codes are displayed.
Note the error code and contact Dell.
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6
Troubleshooting Your Computer
You can troubleshoot your computer using indicators like Diagnostic Lights, Beep Codes, and Error
Messages during the operation of the computer.
Diagnostic LEDs
NOTE: The diagnostic LEDs only serve as an indicator of the progress through the Power-On Self
Test (POST) process. These LEDs do not indicate the problem that caused the POST routine to stop.
The diagnostic LEDs are located on the front of the chassis next to the power button. These diagnostic
LEDs are only active and visible during the POST process. Once the operating system starts to load, they
turn off and are no longer visible.
Each LED has two possible states of OFF or ON.
NOTE: The diagnostic lights will blink when the power button is amber or off, and will not blink
when it is white.
Table 14. POST Diagnostic LED Patterns
Power LED State System State Notes
Off S5/S4 Normal- System is Off/Hibernate
Blinking White S3 Normal- System is in Standby/Suspend
Blinking Amber N/A Abnormal- PSU cannot turn on, recommend PSU BIST.
Replace PSU.
Steady White S0 Normal- System is on functioning
Steady Amber N/A Abnormal- System cannot turn on, recommend check
motherboard components or replace motherboard.
NOTE: Amber LED blinking scheme pattern is 2 or 3 blinks followed by a short pause then X
number of blinks up to 7. Pattern has a long pause inserted in the middle. For example 2,3 = 2
amber blinks, short pause, 3 amber blinks followed by long pause then repeats.
Table 15. POST Diagnostic LED Patterns
Blink Patter System State Notes
2,1
2,2
A possible system motherboard
failure has occurred.
A possible PSU or cabling issue
has occurred.
Recommend replace
motherboard.
Run PSU BIST.
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Check the PSU cabling to
Motherboard to make sure that
all cables are installed correctly.
2,3
2,4
2,5
2,6
2,7
A possible Motherboard,
Memory, or CPU failure has
occurred
A possible coin cell failure has
occurred.
System is in Recovery Mode
A possible processor failure has
occurred
Memory modules are detected,
but a memory power failure has
occurred.
If two or more memory modules
are installed, remove the
modules, then reinstall one
module and restart the
computer. If the computer starts
normally, continue to install
additional memory modules (one
at a time) until you have
identified a faulty module or
reinstalled all modules without
error.
BIOS checksum failure was
detected and the system is now
in recovery mode.
Re-seat the processor
If two or more memory modules
are installed, remove the
modules, then reinstall one
module and restart the
computer. If the computer starts
normally, continue to install
additional memory modules (one
at a time) until you have
identified a faulty module or
reinstalled all modules without
error.
58
3,1
3,2
3,3
PCI device configuration activity
is in progress or PCI device
failure was detected.
A possible HDD or USB failure
has occurred.
No memory modules installed
Remove all peripheral cards from
the PCI and PCI-E slots and
reboot the computer. If the
computer boots, add the
peripheral cards back one by one
until you find the bad one.
Re-seat all power and data cables
to HDD’s. Reinstall all USB
devices and check all cable
connections.
If two or more memory modules
are installed, remove the
modules, then reinstall one
module and restart the
computer. If the computer starts
normally, continue to install
additional memory modules (one
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at a time) until you have
identified all modules without
error. If available, install working
memory of the same type into
your computer.
3,4
3,5
3,6
3,7
Power connector not installed
properly.
Memory modules are detected,
but a memory configuration or
compatibility error has occurred.
A possible system board resource
and/or hardware failure has
occurred.
Some other failure has occurred.
Re-seat the 2x2 power
connector from the power
supply unit.
Ensure that no special
requirements for memory
module or connector placement
exist. Ensure that the memory
you are using is supported by
your computer.
Clear CMOS (re-seat the coincell battery. See removing and
Installing Coin-Cell battery).
Ensure that the display or
monitor is plugged into a discrete
graphics card. Ensure that all
hard drives and optical-drive
cables are properly connected to
the system board. If there is an
error message on the screen
identifying a problem with a
device (such as the floppy drive
or hard drive), check the device
to make sure it is functioning
properly. If the operating system
is attempting to boot from a
device (such as the floppy drive
or optical drive), check system
setup to ensure the boot
sequence is correct for the
devices installed on your
computer.
Error Messages
There are three types of BIOS error messages that are displayed depending on the severity of the issue.
They are:
Errors That Halt Your Computer Completely
These error messages will halt the computer requiring you to cycle the system's power. The following
table lists the error messages.
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Table 16. Errors that halt your computer completely
Error Message
Error! Non-ECC DIMMs are not supported on this system.
Alert! Processor cache size is mismatched.
Install like processor or one processor.
Alert! Processor type mismatch.
Install like processor or one processor.
Alert! Processor speed mismatch
Install like processor or one processor.
Alert! Incompatible Processor detected.
Install like processor or one processor.
Errors That Do Not Halt Your Computer
These error messages will not halt your computer, but will display a warning message, pause for a few
seconds, and then continue to boot. The following table lists the error messages.
Table 17. Errors that do not halt your computer
Error Message
Alert! Cover was previously removed.
Errors That Soft Halt Your Computer
These error messages will cause a soft halt of your computer and you will be prompted to press <F1> to
continue or <F2 > to enter the system setup. The following table lists the error messages.
Table 18. — Errors that soft halt your computer
Error Message
Alert! Front I/O Cable failure.
Alert! Left Memory fan failure.
Alert! Right Memory fan failure.
Alert! PCI fan failure.
Alert! Chipset heat sink not detected.
Alert! Hard Drive fan1 failure.
Alert! Hard Drive fan2 failure.
Alert! Hard Drive fan3 failure.
Alert! CPU 0 fan failure.
Alert! CPU 1 fan failure.
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Error Message
Alert! Memory related failure detected.
Alert! Correctable memory error has been detected in memory slot DIMMx.
Warning: Non-optimal memory population detected. For increased memory bandwidth populate DIMM
connectors with white latches before those with black latches.
Your current power supply does not support the recent configuration changes made to your system.
Please contact Dell Technical support team to learn about upgrading to a higher wattage power supply.
Dell Reliable Memory Technology (RMT) has discovered and isolated errors in system memory. You may
continue to work. Memory module replacement is recommended. Please refer to the RMT Event log
screen in BIOS setup for specific DIMM information.
Dell Reliable Memory Technology (RMT) has discovered and isolated errors in system memory. You may
continue to work. Additional errors will not be isolated. Memory module replacement is recommended.
Please refer to the RMT Event log screen in BIOS setup for specific DIMM information.
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Technical Specifications
NOTE: Offerings may vary by region. The following specifications are only those required by law to
ship with your computer. For more information about the configuration of your computer, go to
Help and Support in your Windows operating system and select the option to view information
about your computer.
Table 19. Processor
Feature Specification
Type 4, 6, 8, 10, 12, and 14 core Intel Xeon processor.
Cache
Instruction Cache 32 KB
Data Cache
Table 20. System Information
Feature Specification
Chipset Intel(R) C610 , C612 chipset
BIOS chip (NVRAM) 16 MB serial flash EEPROM
• 32 KB
• 256 KB Mid-Level Cache per core
• Up to 35 MB last level cache (LLC) shared among all cores
(2.5 MB per core)
7
Table 21. Memory
Feature Specification
Memory module connector 8 DIMM slots (4 per CPU)
Memory module capacity 4 GB, 8 GB, and 16 GB
Type 2133 DDR4 RDIMM ECC
Minimum memory 8 GB per CPU
Maximum memory 128 GB
Table 22. Video
Feature Specification
Discrete (PCIe 3.0/2.0 x16) up to 2 full-height, full-length (maximum of single 225 W)
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Table 23. Audio
Feature Specification
Integrated Realtek ALC3220 audio codec
Table 24. Network
Feature Specification
Tower 7810 Intel i217
Table 25. Expansion Interfaces
Feature Specification
PCI:
SLOT1 PCI Express 3.0 x8, 8 GB/s
SLOT2 PCI Express 3.0 x16, 16 GB/s
SLOT3 PCI Express 2.0 x1, 0.5 GB/s
SLOT4 PCI Express 3.0 x16, 16 GB/s
SLOT5 PCI Express 2.0 x4, 2 GB/s
SLOT6 PCI 2.3 (32 bit, 33 MHz), 133 MB/s
Storage (HDD/SSD):
SATA3-HDD0 Intel AHCI SATA 3.0, 6 Gbps
SATA3-HDD1 Intel AHCI SATA 3.0, 6 Gbps
SATA2-HDD2 Intel ACHI SATA 3.0, 6 Gbps
SATA2-HDD3 Intel ACHI SATA 3.0, 6 Gbps
Storage (ODD):
SATA2-ODD0 Intel AHCI SATA 3.0, 6 Gbps
SATA2-ODD1 Intel AHCI SATA 3.0, 6 Gbps
USB:
Front ports one USB 3.0 (5 Gbps)
three USB 2.0 (480 Mbps)
Rear ports three USB 3.0 (5 Gbps)
Internal ports three USB 2.0 (480 Mbps)
Table 26. Drives
Feature Specification
Tower 7810
Externally accessible:
Slimline SATA optical bays one
5.25–inch drive bays one:
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Feature Specification
• supports one 5.25–inches SATA device or supports one
3.25–inches SATA HDD device
• supports one media card reader
• supports up to two 2.5–inches SAS/SATA/HDDs/SSDs
(with optional adapters)
Internally accessible
3.5–inch hard drive bays two:
• supports 3.25–inches SATA
• supports 2.5–inches SAS/SATA/HDD/SSDs
Table 27. External Connectors
Feature Specification
Audio
front panel mic-in, headphone-out
back panel line-out, mic in/line In
Network
Tower 7810 one RJ-45
Serial one 9-pin connector
USB
Tower 7810
• front panel — three USB 2.0, and one USB 3.0
• back panel — three USB 2.0, and one USB 3.0
• internal — three USB 2.0
Video Video card dependent
• DVI connector
• mini DisplayPort
• DisplayPort
• DMS-59
Table 28. Internal Connectors
Feature Specification
System power one 28–pin connector
System fans three 4-pin connectors
Thunderbolt sideband one 5–pin connector
Processor fans
Tower 7810 two 5-pin connectors
HDD fans
Tower 7810 one 5-pin connector
Memory
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Feature Specification
Tower 7810 eight 288–pin connectors
Processor
Tower 7810 two LGA-2011 sockets
Back I/O:
PCI Express
PCI Express x4
Tower 7810 two 164-pin connectors
PCI Express x16
Tower 7810 two 164-pin connectors
PCI 2.3 one 124-pin connector
Front I/O:
Front USB one 14–pin connector
Internal USB one type A female, one dual-port 2x5 header
Front panel control one 2x14 pin connector
Front panel audio HDA header one 2x5 pin connector
Hard drive/ Optical drive:
SATA
Tower 7810
• four 7-pin SATA connectors for HDD
• two 7-pin SATA connectors for ODD
Power
Tower 7810 one 24-pin and two 10-pin connectors
Table 29. Controls and Lights
Feature Specification
Power button light: off — system is off or unplugged.
solid white light — computer is operating normally.
blinking white light — computer is in standby.
solid amber light — the computer does not start, indicating a
problem with the system board or power supply.
blinking amber light — indicates a problem has occurred with
the system board.
Drive activity light white light — blinking white light indicates that the computer
is reading data from, or writing data to the hard drive.
Network link integrity lights (back panel) green light — A good connection at 10 Mbps exists between
the network and the computer
orange light — A good connection at 100 Mbps exists
between the network and the computer.
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Feature Specification
yellow light — A good connection at 1000 Mbps exists
between the network and the computer.
Network activity lights (back panel) yellow light — flashes when there is network activity on the
connection.
Table 30. Power
Feature Specification
Coin-cell battery 3 V CR2032 lithium coin cell
Voltage 100 VAC to 240 VAC
Wattage
Tower 7810 825 / 685 W (input voltage of 100 VAC – 240 VAC)
Maximum heat dissipation
825 W 3312.6 BTU/Hr
685 W 2750.5 BTU/Hr
NOTE: Heat dissipation is calculated by using the power supply wattage rating.
Table 31. Physical
Feature Specification
Tower 7810
Height (with feet) 416.90 mm (16.41 inches)
Height (without feet) 414.00 mm (16.30 inches)
Width 172.60 mm (6.79 inches)
Depth 471.00 mm (18.54 inches)
Weight (minimum): 13.50 kg (29.80 lb) / 12.40 kg (27.40 lb)
Table 32. Environmental
Feature Specification
Temperature:
Operating 10 °C to 35 °C (50 °F to 95 °F)
Storage –40 °C to 65 °C (–40 °F to 149 °F)
Relative humidity (maximum) 20% to 80% (noncondensing)
Maximum vibration:
Operating 5 Hz to 350 Hz at 0.0002 G²/Hz
Storage 5 Hz to 500 Hz at 0.001 to 0.01 G²/Hz
Maximum shock:
Operating 40 G +/- 5% with pulse duration of 2 msec +/- 10%
(equivalent to 51 cm/sec [20 in/sec])
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Feature Specification
Storage 105 G +/- 5% with pulse duration of 2 msec +/- 10%
(equivalent to 127 cm/sec [50 in/sec])
Altitude:
Operating –15.2 m to 3048 m (-50 ft to 10,000 ft)
Storage –15.2 m to 10,668 m (-50 ft to 35,000 ft)
Airborne contaminant level G1 as defined by ISA-S71.04-1985
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8
Contacting Dell
NOTE: If you do not have an active Internet connection, you can find contact information on your
purchase invoice, packing slip, bill, or Dell product catalog.
Dell provides several online and telephone-based support and service options. Availability varies by
country and product, and some services may not be available in your area. To contact Dell for sales,
technical support, or customer service issues:
1. Go to dell.com/support.
2. Select your support category.
3. Verify your country or region in the Choose a Country/Region drop-down list at the bottom of the
page.
4. Select the appropriate service or support link based on your need.
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