What happens when you boot is that the icon that looks like a "z" turns on (though I'm not really sure what it indicates, but I think it's power). None of the usual icons would turn on (like the harddrive icon). The screen is all black, and nothing would happen. There is no beeps from the motherboard.
How it started
The problems all started happening when power was accidentally cut while the laptop was powering off. As some might or might not know, the batteries made for the t61p is extremely low quality, they would only hold 1 - 5 minutes of charge (warranty did cover this, got a new battery just before warranty ended, it died within weeks).
What I've tried
I've opened it up, checked that everything looks normal, and it did. Removed all the RAM and powered on, suddenly the motherboard would make it's normal warning beeps when something goes wrong. Put back the RAM and tested a new harddrive, still no luck. Tried connecting an external screen, but nope.
The fan would start to spin for 2 seconds, then it would just stop spinning.
Worth to note is that I opened the laptop up about a month ago to clean the fan (with "air on a can") because of overheating issues. Before, the laptop would BSoD and overheat within 10 - 15 minutes without a cooling pad. After I cleaned the fan and re-installed win7, all the problems went away.
Edited by vigge_sWe, 02 January 2012 - 12:28 PM.