Hello technical gurus & brethren – I have a Gateway MA7 laptop that I took in on trade and already have a little money in it and I am trying to avoid ordering a new board when the problem is most likely a simple one. I have seen where several other users have inquired with a similar problem but have not seen any replies with the technical response I was seeking. It seemed to POST fine when the battery had a charge but died when it was depleted. It will not post at all without the battery and the battery is good. It is not the DC connector. I have pulled the mainboard and the DC connector appears to be fine. I have 19 Volts getting to the board. It is apparently not switching back from battery & no power to an AC / charging state. There is a transistor marked E74 which I am suspicious of but before I start desoldering and testing components I was hoping to find someone that has already repaired this to confirm that it is this or a similar semi-conductor switch. Schematics would be nice… but I’m not holding my breath. 🙂