The SPI Flash ROM chips containing the BIOS/UEFI code or the EC firmware have suffered data corruption.
What is the motherboard exhibiting? (e.g., dead completely, spinning fans but no display, liquid damage?) ms-16j91 schematic
If the system powers on (fans spin, LEDs light up) but there is no image on the screen, the +3V_LCD rail may be missing. The SPI Flash ROM chips containing the BIOS/UEFI
A schematic is a technical diagram that maps out every electrical connection on the MSI motherboard. The —often associated with MSI GP62M, GP62MVR, or GP72M models—is complex, incorporating high-performance CPU (Intel) and GPU (NVIDIA) components. A schematic helps you identify: Voltage Rails: The path of electricity ( +3Vpositive 3 cap V +5Vpositive 5 cap V 19V19 cap V ) throughout the board. A schematic is a technical diagram that maps
The most common issue with MSI gaming laptops is a failure in the power delivery system. The schematic allows you to trace the from the jack, through protection MOSFETs (often labeled PQxx), to the charging IC (typically BQ24735 or similar), and finally to the 3.3V/5V regulator (PUxx). Without the schematic, you cannot verify which voltage is missing.
Disclaimer: Repairing electronics involves risks. High-level soldering and electrical knowledge are recommended.
Laptop turns on, blue LED lights up, fans spin at maximum speed, but there is No Display (Black Screen) and no USB activity (Caps Lock light doesn't toggle).