My own experience tells me the CIA chips are not likely the source of the problem. CIA problems would manifest themselves as problems with sound or floppy access, followed by eventual lockups (as with my DOA A1200 board). The red screen of death is usually do to a failure in the CPU, ROM or RAM... Such as an improperly seated CPU card (which I see all the time as I am lacking the little plastic feet), the CPU itself, ROMs or loose SIMM. I've even gotten it when my SCSI card is loose.
PS: Benchtesting ANYTHING on antistatic bags is a BAD IDEA!! They're made of an electrically conductive material, which will cause short circuits across all of the pins along the botom of the board.