Dell service tag online

How to find Dell service tag on any device.

For technical support or service on your computer you will need your service tag. Finding the service tag is not  hard. The dell service tags are all unique so you will need to give the technical folks the correct one. This is important because the service tag identifies your computer and the hardware your computer shipped with. Its also used to check your warranty status.

When ever your computer has problems, for example wont turn on make sure your have the service tag as you be asked for it.

What is the Dell service tag?

The dell service tag is a 7 digit character code usual a mixture of letters and digits that is specific to you device. It is usually located at the bottom of laptops and back of desktop computers next to the windows product key on most computers. For example service tag SMPL783.


Dell Optiplex 380 service tag
Dell Optiplex 380 service tag

How to find a dell service tag

The location of the dell service tag sticker varies with devices. Its not always as visible as in the Dell optiplex above. For example in some alienware laptop you have to press a button for it to show, on some desktop you have to pull the section that covers the front usb port and audio jacks.

Here are the couple of places to check for for the sticker with the service code.

  1. On the bottom of laptops e.g on Dell inspiron its on the edge of the battery line.
  2. At the back of desktops usually near the VGA port, usually found next to the windows product key, so if you see the windows logo check there.
  3.  On some servers there a rubber sticker that you can pull at the back.

How to find dell service tag if sticker is missing?

Sometimes the sticker is not always there. The one on my XPS already had vanished in less than 3 months. I do not know why they make the stick easily removable. Just slight friction and it gets removed. Don’t worry though there are still plenty of ways to get the service tag without the sticker.

Find Service tag from BIOS.

Dell inspiron 3520 service tag on Bios menu
Dell inspiron 3520 service tag on Bios menu
  1. Switch of the computer.
  2. Press the power button to turn the computer.
  3. On the Dell logo splash screen quickly press F2.
  4. On Bios menu look for a 7 character code under system information.

Finding a dell service tag from the command line

If you are familiar with the windows command line you can also use it to find the service tag. You can use the command prompt or powershell. In windows press the windows start button, search for “run”, alternative shortcut would be to press windows key + R key. Now type cmd press enter.

Enter the following command without quotes ” wmic bios get serialnumber”

XPS service tag from command line
XPS service tag from command line

This command uses the Windows Management Instrumentation Command-line (WMIC) to show you the data that you are looking from. The service tag number is the one under serialnumber.

This also works remotely but you need to have the administrator password. To access the service tag remotely this the command “wmic /user:administrator /node:remote-host bios get serialnumber” replace the remote-host in bold with the IP address or workstation name.

You can even get more info with the following command “wmic bios” this will get you bios, operating system information and other geeky infor about the computer including the tag.


If you are using the Linux operating system you can also get the Dell service tag from the terminal. The command on linux is as follows:

Local Dell Computer or server

# dmidecode | grep -i serial
# dmidecode -t 1

Remote Dell computer or server

You will need to use secure shell. Depending on what you have the I.P Address or domain type either of the commands belows

$ ssh OR $ ssh root@ to use the IP address

or just do $ ssh dmidecode -s system-serial-number

$ ssh root@ dmidecode -s system-serial-number

Service tag using Powershell

You can also use powershell to find the service atg though its almost the same as the method above of using command prompt. For powershell use the Get-wmiObject command below

“Get-WmiObject win32_SystemEnclosure | select serialnumber”

Dell system detect software

Dell created software that can detect the system that you are using this comes in handy when you are looking for the Dell service tag.

  1. Enter click this link
  2. Click detect system next to submit .
  3. Check the terms and conditions box and click continue.
  4. Downloading of software install should begin.
  5. Run the software and let it download the rest of the package about 2.5mb.
  6. The results will show on the website after its done detecting.

The methods above may also work on your powerdge 840 server or any server depending on the system and configuration.

Let us know in the comments sessions of what we missed.


  1. Very nice write up! You might mention that for the Linux command you probably have to run as root (i.e., sudo). Also, as far as I know the Dell detect software only works with Windows.

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