Here I just measure it with the Volt meter. For the common CR2032 3.0 or lower and a new one goes in. I have yet to need to check continuity.
After the change and no start I do the (short version follows) reset. I power off, remove charger then main battery, press and hold the power button for 60 seconds, release, slip in battery, apply the charger, look at the charging lights and then test.
If that fails and removing parts like wifi, ODD, HDD and down to one stick RAM doesn't show any signs then it's likely the motherboard is gone.
The laptop was working fine until a few days ago when I tried to power on the laptop, even with the AC adaptor, it would no longer power on. I did just come back home from the airport, so maybe that had something to do with it?
I followed all the steps here: https://www.computerhope.com/issues/ch001127.htm
After following some of the steps, when I hit the power button on the laptop, it would flash for a second or so, and then stop flashing. Nothing ever appeared on the screen
I then checked for continuity in the RTC battery, noticed there wasn't any, so I ordered a new one and confirmed continuity in it. However, the laptop still won't turn on, even after following the steps in the link above
I then removed the Hard disc, RAM, and WLAN. I then plugged in the AC without the battery, and once again, when I hit the power button on the laptop, it would flash for a second or so, and then stop flashing. Nothing ever appeared on the screen
does this mean the motherboard is dead? I have to take this to a repair shop or buy a new laptop?
Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic