Macbook Pro 13 inch Early 2012 model. Liquid was spilled on the keyboard and the computer would no longer turn on or boot. Voltage for the power rail PPBUS_G3H was not present. Q5300 had a pin that was burnt. We removed it, retinned the pad and replaced the component to repair the logic board to working order. We were able to repair the board for less than half of what Apple inc. charges and we warranty it for twice as long.