Lenovo W500 ThinkPad W Series :: Running Windows 7 Which Unexpectedly Turns Off?

I have a W500 running Windows 7 which unexpectedly turns off, usually when asleep but sometimes also while on. The turn off happens as if the power is lost (say, the battery/AC cord are yanked out). After a turn off like that, I sometimes need to reconnect the battery and the AC cord. Did some reading here and elsewhere on the web and came upon the electrostatic suggestion. Was able to get it to turn back on at least a few times by touching the underside of the laptop, but that worked inconsistently.
 
Since it mostly happens when the unit is asleep, I pretty much ruled out the temperature and software issues.
 
Decided to check out the memory section pin bending solution. My laptop has to have it's palm rest taken off to access the RAM modules. People kept referring to some RAM door pins but since mine doesn't have a special RAM door, I bent some pins on the bottom of the palm rest and so far, not power loss but too early to tell.