Look up product by Service Tag Linux dmidecode -s system-serial-number The Dell Service Tag is a base-36 integer. The Express Service Code is simply the base-10 decimal integer version of the Dell Service Tag. The Dell Service Tag is related to the Express Service Code.
This can be done without rebooting from the command-line of both Linux and Windows. so you can query the BIOS for the Service Tag. It turns out that Dell puts the Service Tag in the BIOS. Luckily, you can get the Dell Service Tag from a machine remotely. This can be a pain in the ass if you didn't realize how critical this number is and didn't include it in your inventory of your servers. In order to talk to Dell about equipment you bought from them you need the Dell Service Tag which is a 7-character string of capital letters and numbers that is printed on a tiny brown sticker somewhere on the front or back of the machine.
