screwdriver set arrived
took the back off - RAM is integral to the MoBo
was able to re-create the freezing by flexing the board at the RAM chips
so I'm guessing a physical connection problem
rather than a bad chip problem
don't know what to do with this POS
it's 3 years old and been nothing but trouble - and it was not cheap
the 5 year old thinkpad just got a new battery and otherwise not a single issue
and it gas NOT lived an easy life
You have a few options:
1) Find somebody with a hot rework station to try and fix it
1a) Look up the ghetto home oven reflow technique - it may create other problems
2) Buy a replacement motherboard on eBay
3) Smash it into pieces
For all options consider copying important **** off the main drive first