It's that lousy connector. I have a Gateway Solo 9200 (PII@266MHz) which all the boards (Video, I/O, CPU, HD, Power) are sandwiched together by these connectors. It took a nasty fall and the connectors popped out of each other! I thought the Gateway was dead! A couple of years later, I opened up the Gateway and found all the board separated.  Putting them together got the Gateway alive and running again!

It is the same connector as in the 1400, and G3 Wallstreet/Lombard/Pismo PBs for the CPU/RAM card. One good hit if it is not anchored down, it will pop off the board.