ASUS and other PCs

ASUS ROG laptops

On the hardware: the bottom sticker carries the model and a serial marked S/N — 15 characters, usually under a barcode. On some ROG models the sticker sits beneath a magnetic flap or a removable panel rather than out in the open.

In Windows: the MyASUS app shows the serial, or use PowerShell:

Get-CimInstance Win32_BIOS | Select-Object SerialNumber
Get-CimInstance Win32_ComputerSystem | Select-Object Manufacturer, Model

In firmware: shut down fully, then hold F2 and press power to reach BIOS setup — the serial is on the main/EZ Mode screen. Hold Esc and press power instead for the boot menu. See BIOS and boot menus .

Model field: ROG Strix G16 plus the year or CPU in the notes — we have four of them and they’re otherwise indistinguishable.

Eurocom

Eurocom builds on Clevo chassis, so it behaves like a generic PC: the serial is on the bottom sticker, and PowerShell reads it the same way as any other Windows machine.

For firmware, F2 gets you into setup and F7 is the usual boot-menu key on these chassis. If neither responds, use the Windows route: Settings → System → Recovery → Advanced startup, then Troubleshoot → Advanced options → UEFI Firmware Settings.

Custom-built workstations

The XR/ML workstations we assembled ourselves (Core Ultra 9 285K + RTX 5090 class machines) have no manufacturer serial. Get-CimInstance Win32_BIOS returns something empty or a placeholder like To be filled by O.E.M. — that’s expected, not a fault.

For these, record the motherboard serial instead:

Get-CimInstance Win32_BaseBoard | Select-Object Manufacturer, Product, SerialNumber

sudo dmidecode -s baseboard-serial-number     # Linux
sudo dmidecode -s baseboard-product-name

Note in the asset that the value is the board serial, not a system serial. For a custom build the asset tag is the real identifier — the label on the case is what makes it traceable, so make sure it’s on there and legible.

Consumer GeForce cards generally do not report a serial (nvidia-smi -q | grep -i serial comes back N/A on GeForce, populated on datacenter and workstation boards). Don’t chase it — record the GPU model in the asset notes and the board serial as the machine’s identity.

Whatever the OS is

These machines get reinstalled often. All four paths give the same value:

• Windows → Get-CimInstance Win32_BIOS
• Linux → sudo dmidecode -s system-serial-number
• FreeBSD → kenv smbios.system.serial
• No OS at all → firmware setup, or the sticker

See Reading it from the OS for the full command reference.