Power on OK, chimes, then text saying, 'you need to restart...'
Powers on OK, chimes, then a gray screen and text in 4 languages saying, "You need to restart your computer... " Stays powered up with that message.
Normal sounds otherwise; chime, fan; HD.
If, I hold down power button through 1st chime, then, a BEEP sound occurs, then, a 2nd chime, then, a black screen and then it powers off.
Boots OK into Disc Target Mode no problem.
I've reseated RAMs. The BATT is good. The Charger is good. Charge circuit works OK.
Is this a good question?