DEC Digital PC 3500 System Reference Manual page 63

4. Press the [+] key to select one of the available options.
NOTE
: "Auto Standby Timeout" and "Auto Suspend Timeout"
have been preset. You can change these times by selecting them
and pressing the + key to sequence through the available options.
In "Standby" mode, peripheral components are put in their lowest
active states in addition to reducing the processor speed after the
set period of inactivity.
In "Suspend" mode, peripheral components are shut off, and the
CPU speed is further reduced after the set period of inactivity.
Choose other Power Savings options as desired.
5.
Press [Esc] then [Enter] twice to exit the BIOS Setup utility and to reboot the
6.
computer so changes immediately take affect.
Using the BIOS Setup Utility
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