Locating specific part numbers and component labels for soldering replacements. Accessing the Schematic
: Crucial rails for the KBC and BIOS chip. If these are missing, the laptop will not start. +1.35Vpositive 1.35 cap V +1.2Vpositive 1.2 cap V (DDR4): RAM power supply. : CPU power. C. System Management lae791p rev 20 schematic diagram verified