I neglected to add that CORRECTLY installing PC66 memory in a board that wants
PC100 or PC133 is likely to have one of three results:
1. The computer simply will not boot or power on at all.
2. The motherboard BIOS will display text indicating a serial presence detect
(SPD) error, in other words, identifying the mismatch in memory specifications.
3. A VERY cheaply made motherboard will acccept the memory as is, after which
the computer will then behave in a very erratic manner, displaying BSODs at the
most inopportune moments or halting while booting up.
.... Ben Myers