Compaq 247320-003 - Deskpro 4000 - 5166 Model 2500/CDS Reference Manual page 223

The following tables identify the S2, S3, and S4 or S5 switch
settings for each processor frequency.
S2 S3
ON ON
OFF ON
OFF OFF
S2 S3
OFF OFF
ON ON
ON OFF
If you connect your computer to an electric power strip, and
would like to turn on power to the computer using the switch on
the power strip, set S6 on SW1 to ON.
If you turn off power to your computer using the switch
on a power strip, you will not be able to use the Suspend
feature or the Remote Management features.
S5 Processor Speed
ON 66/166 MHz
ON 66/200 MHz
ON 66/233 MHz (for
Pentium MMX only)
S4 Processor Speed
ON 66/233 MHz
OFF 66/266 MHz
OFF 66/300 MHz