A friend of mine tried to find the source of some rattling in another friend's Compaq Presario laptop (600 MHz).
In the process, they pulled the CPU out of the ZIF socket without undoing the ZIF lever (they couldn't reach that lever without first undoing the heatsink, and they couldn't undo the heatsink because it was solidly adhering to the CPU, of course).
Anyway, upon trying to put the CPU back in once the source of the rattling was dealt with (an obviously loose screw was tightened) the laptop no longer boots.
Friend took apart his own laptop (a Presario 700MHz) and, seeing the chips were similar, stuck his 700 into the 600's CPU slot. No go. He then tried putting his CPU back into his laptop, but no go there.
So, basically, two laptops are now nonfunctional, possibly due to zapped CPUs. I'm wondering if there might be some other solution; assuming that all connectors have been reattached as originally found, is there something about Compaq laptops which causes the machine to never be able to be powered back on if such drastic steps like opening it up are taken (a kind of warranty enforcement; to almost force you to return the laptop to Compaq for servicing)?
Any ideas would be appreciated.