A popular script on this blog uses the Win32_SystemEnclosure WMI class to get the Dell Service Tag from Dell computers [see Getting Dell Service Tag using WMI].
Powershell’s Get-WmiObject cmdlet makes it a one-liner. You can also use it to get the serial number from systems made by other manufacturers.:
Get-WmiObject win32_SystemEnclosure | select serialnumber
To list all properties exposed by the Win32_SystemEnclosure class:
Get-WmiObject win32_SystemEnclosure | fl *
Update 7/13/2022:
As @Ripstone commented, Get-WmiObject is superseded by the new Get-CimInstance cmdlet based on the Common Information Model (CIM). You can use it to get the same Win32_SystemEnclosure class and the Dell Service Tag or serial number.
Get-CimInstance win32_SystemEnclosure | select serialnumber
For more information about differences between WMI and CIM, see Get-CIMInstance Vs Get-WMIObject: What’s The Difference?
{ 9 comments… read them below or add one }
Seems like the following works too:
Get-WMIObject -Class Win32_Bios
Added advantage is it works on my IBM Blades too whereas the other does not…
gwmi win32_bios
works too
Dell has been remarkably open to date in allowing users to publicly vent their spleen on its blog.
Hi,
Does this also works for HP Server ?
So how do you get the serial without all of the extra text. I have thus far:
gwmi win32_bios | select serialnumber
But that returns:
serialnumber
——————-
[The actual serial number]
How can I omit the first two lines being returned?
“How can I omit the first two lines being returned?”
You want to use the “-expand” flag for Select-Object. Try this:
gwmi win32_bios | select -expand serialnumber
How can you get the service tags for multiple servers at the same time?
Thanks,
gwmi win32_bios -computer servername | select -expand serialnumber
WMI has been deprecated since PowerShell v3. This command should work going forward:
Get-CimInstance win32_SystemEnclosure | select serialnumber