Boardview of the HP Pavilion dm4 laptop main board, number 6050A2314301-MB-A04, where A04 marks the board revision. The 6050A numbering belongs to Inventec, which built this platform for HP. The BRD file opens in OpenBoardView, FlexBV or Boardviewer and shows component locations, nets and pin data for both layers. Use it to track down a shorted capacitor, find charger and power rail parts and probe signals. Make sure the board number and revision on the PCB are the same before relying on it.
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 @boardviews. Enginerys does not host this file.
How to open a .brd file
The most common boardview extension. Several unrelated formats share it, which is why one viewer opens a .brd and another refuses it.