If you are currently staring at a board with this marking and can’t find a schematic:
Manufacturers often hide the real model number under the RAM sticks or on a sticker near the Wi-Fi card. cm-4 94v-0 boardview
This is a UL (Underwriters Laboratories) flammability rating. It indicates that the plastic materials used in the PCB will stop burning within 10 seconds and won't drip flaming particles. If you are currently staring at a board
An open-source, multi-platform tool that is highly recommended for modern repairs. Check_BoardView: Often used for Asus-specific files. cm-4 94v-0 boardview
On boards marked CM-4, the most common points of failure are the entry MOSFETs and the ceramic capacitors near the CPU/GPU power rails.