Emachine M622-UK8X - I have had my laptop for a few years. About a year ago I was on the laptop when I got the blue screen of death. I turned off the laptop by holding down the power button. I then tried to turn the laptop back on via the power button and nothing. I took my laptop to a place in Mexico and they couldn't figure it out and just said the motherboard was burnt out. I have since taken the laptop apart myself and see no evidence of a bad motherboard. When I plug the battery supply in the plug, WiFi, Capslock, and Numlock lights all come on. The battery plug light on the monitor does not come on. At one point my fan came on when I plugged it in to the wall but I have not had that happen again. When I took it apart I tried to pull the BIOS battery to maybe reset the BIOS. No change. Any advice or is my laptop a loss cause?

Well the screen is dead and the emachine splash is dead
so screen triple dead if BIOS is dead, so we fix that first.
here are the tests in order correct.
and quadro dead, fans dead.
All uSB devices unplugged. DVD tray EMPTY for sure does button eject work if not power is failing. to DVD drive.

1: remove the huge battery first they short and overload the PSU power rails and VRM inside the PC , just remove it.(easy no?)_

2; then use only the AC to DC power pack for power, even for ever.
let me be clear run on AC power only.
3: screen wake up yet? a goal best BIOS screens up.
4: the flashlight test is next to any black screen , pc seems on.
I can hear HDD spin ear to casing of hdd, hummmm
5: still dead screen? out the hdd, remove it and DVD drive both
as those to can short, in fact up to 20 things in a PC can FAIL.
6: the coin cell above 2.9vdc and never below, 3.3vdc new.
CCLF DEAD.
7: strip the PC down more, in you mind focus on modules and device that can short, even to to 1 stick of DDR memory, AC power cord pull do not remove things inside any PC with AC power to wall jack, ever, and big battery is already gone until PC runs right again,.

2009 MADE NEW. CCFL INSIDE !!!!!!!!!!
emachines eMachines W4620 (M622-UK8X)