Boardview for Wistron board 18778-1, with a 0606 date-style tag and a WZS1150 code, supplied as a BRD file in a large 53.2 MB ZIP. Wistron uses this five-digit plus revision numbering for the mainboards it builds for Dell and other brands. Open the BRD in OpenBoardView or FlexBV to find parts, view nets and find test points when diagnosing shorts or missing voltages. Pair it with the matching schematic for full rail tracing, and confirm the 18778-1 marking on the PCB before relying on layout positions.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @SCHEMATICWORLD. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.