Member Avatar for AmonNoreinor

Hi all,

I am a computer enthusiast and I assemble my own PCs. I wanted to know how to brand the PC with custom System Manufacturer and System Model settings. I am aware of the OEMINFO.ini file but that only changes information in the Computer properties page when you right-click 'My Computer' and choose properties.

But when you use dxdiag, the System Manufacturer and System Model read "To be filled by O.E.M". Could anyone please tell me how to go about changing these settings ? Changing the OEMINFO.ini file does not affect these values.
OEM manufacturers like Dell, Sony have changed the settings on their
products, so I'm sure it's possible.

Thanks,
Amon

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  • Latest Post Latest Post by goldeagle2005

Dani AI

Generated

raised the right question and was on target pointing at the firmware level — the strings dxdiag shows are supplied by the motherboard’s SMBIOS/DMI data, not by Windows UI files. Changing what dxdiag displays therefore requires changing those SMBIOS/DMI fields in the board firmware; below is a practical, safe workflow and what to expect.

  • Verify current values: run msinfo32 or dxdiag and, for a quick command-line check, wmic csproduct get vendor, name to see the exact fields you’re targeting.
  • Prefer vendor tools: for brand systems (Dell/HP/Lenovo) use the manufacturer’s configuration utilities or enterprise provisioning tools — they can set DMI fields without manual BIOS hacking. For consumer motherboards, check the BIOS setup for any “System Information / Asset Tag / Owner” fields first.
  • Advanced route (risky): if no vendor tool exists you must edit the SMBIOS data embedded in the BIOS image and reflash it. That involves: backing up the current BIOS, extracting the relevant DMI strings, editing them with a compatible BIOS/DMI editor, and then flashing the edited image. Keep the original image, confirm compatibility, and follow the board vendor’s flashing procedure exactly.
  • Verify and recover: after flashing, confirm with msinfo32/dxdiag/wmic. Have a BIOS recovery plan (vendor recovery jumper, USB recovery, or SPI programmer) ready before attempting anything that writes firmware.

If altering firmware isn’t acceptable, stick to non-invasive branding (OEMINFO/OEMLogo for Control Panel and About screens) or use vendor provisioning tools for fleet deployments. Changing SMBIOS is possible but advanced — it can void warranties and, if done incorrectly, can make a board unbootable.

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Member Avatar for nanosani

Moving the thread to Windows 2000/xp section for better responses.

Member Avatar for goldeagle2005

What DXDIAG shows is the data read from your mobo's DMI, which is filled in by the mobo manufacturer. In my case, I have an MSI mainboard and DxDiag shows System Manufacturer as 'Micro Star International LTD'. You really can't do much about it.

Who's the manufacturer of your main board?

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