I have an ECS G733 laptop (sold under various brands) that only boots very occasionally - 19 times out of 20 it does not even POST. then when it does that often ends in a corrupted screen rather than continue to booting the OS.
for a while I did manage to get it to POST more frequently by removing the RAM, cycle power, replace ram, power on to POST. i don't know why that worked but it dod for a while (not anymore)
I replaced the 3v internal backup battery (yet the next time it did actually POST it said the battery was low).
almost every time it does get to POST the bios setting are returned to default.
does any one have any idea how to fix it? I have opened it up and found a capacitor near the main 14v battery looking like it had died (bulging and discoloured).