Hello everyone. I know there are tons of threads like this, but nothing seem to work for me, plus, my situation is a little different: I got this laptop after it lay unused for about a year, and all the posts I saw were talking about a laptop that suddenly stopped working. Basically it won't turn on. Nothing at all happens when I push the power button (no fan/HDD activity/flashing of lights - Nothing). The power cable+socket seems to be working because when I initially plugged it in the "charging battery" light went on, and stayed on for a few hours, I assume while the battery charged. Now it won't turn on when I unplug-plug the power cable, but if the power cable is plugged in, and I push power while holding Enter, it does flash for a moment. Things I tried: 1. Removing power+battery, holding power button for 60 seconds. 2. Reseating RAM, HDD, CD-ROM. 3. Trying to power up without HDD. 4. Disassembling the laptop with the help of a service manual and taking out and plugging in the screen+keyboard+touchpad connectors, removing the heatsink to verify that the CPU is firmly in place and putting it back. There seems to be a battery called "Reserve battery" - what is it for? Maybe it went flat? Anyone has any idea what I can try next? Thanks!