K21 Board Number – Compatible Laptop Motherboards

K21 Board Number is documented on 1 indexed laptop motherboard schematic. Find board numbers, models, CPU/GPU platforms and direct schematic discussion links. Examples include Apple Inc. 820-3057.
Board Number compatibility index

K21

Every laptop motherboard in the Dr-Bios schematic archive documented as using K21. Narrow the list by any part these boards share, then open the matching schematic thread.

Board Numberbrowse this category

Motherboards using K21

Extracted from the structured technical table of each indexed schematic thread. Click any row to open it.

1 of 1 motherboards
Motherboard Board number Project code CPU platform GPU Open
apple k21-lio 051-8933 820-3057 rev-4.10 schematic Apple Inc. · rev 4.1.0 820-3057 — Intel CPU Sandy Bridge SFF 2C+2F —
No motherboard in the loaded list matches that filter.
Top