An original design manufacturer designs a product, builds it and delivers it to a brand that sells it under its own name. Most laptops work this way: the brand specifies what it wants, and an ODM designs the motherboard, sources the components, often adapts the EC firmware and manufactures the boards.

The main laptop ODMs

  • Compal — LA-xxxxP board codes; designs for Dell, Lenovo, HP, Acer, Toshiba and others.
  • LCFC — Lenovo's manufacturing company with Compal roots; NM-xxxx codes.
  • Quanta — DA0xxxMBxxx part numbers; designs for HP, Dell, Acer, Lenovo, Apple and others.
  • Wistron — five-digit project numbers and 448. part numbers; Dell, Lenovo, Acer, HP.
  • Inventec — 6050A numbers; especially HP and Toshiba.
  • Pegatron, Foxconn, Clevo and others for specific brands and product lines.

Why it matters for repair

Each ODM has its own habits: how its schematics are laid out, how rails and signals are named, which jumpers it places for testing, which EC families it prefers. Recognise the ODM from the board code and you know how to read a board's documents before you open them. Boards from the same ODM and generation often share large parts of their power design even when they are sold by different brands — useful when your exact board has no schematic.

ODM versus OEM

An OEM (original equipment manufacturer) traditionally builds to someone else's design; an ODM also does the design. In the laptop world, people often use the terms loosely. For repair purposes, the important point is that the company whose code is printed on the board designed it, and its documents are what you need.

Spotting the ODM on a board

The board code format is the quickest clue. Some boards also print the ODM's name or logo next to the code, and every page of an ODM schematic names the company in its title block. File names often include it too — "Compal", "Quanta", "Wistron" — even when they leave out the laptop brand. When a board in the catalog has no known brand, it is listed under its ODM until another file ties it to a laptop.

More about the companies and their styles in Compal, Quanta, Wistron, Pegatron, Inventec: Who Made Your Laptop Motherboard.