Air 486SH, Руководство пользователя, Страница: 28 / 39

25MHz 2T TRANS
33MHz 2T SYNC
40MHz 2T SYNC
50MHz 2T or 3T SYNC
POWER MANAGEMENT SETUP
The Power Management Setup provides a programming way to slow
down CPU clock speed and put other system devices such as Video
Monitor into power saving mode.
There are five software timers internal to the MEGAKEY keyboard
controller that perform power management. These timers are initialized
by BIOS with user-defined time-out values from 1 to 255 minutes. The I/
O pins that are associated with each timer are hardware design-specific
and are defined as connectors JP8 and JP50 on the 486SH motherboard.
Please refer to Chapter 2 for detailed description of these connectors.
CPU and devices connected to JP8 and JP50 will go in to power saving
mode if the keyboard is not used by user for a period of time programmed
through this BIOS option.
AUTO CONFIGURATION WITH BIOS DEFAULTS
Use this option to load the default configuration values directly from
ROM. If the stored record created by the Setup program becomes
corrupted, these defaults will load automatically when you turn the
computer on.
AUTO CONFIGURATION WITH POWER-ON
DEFAULTS
Use this option to load the settings detected by the system when you turn
it on. It your system behaves erratically you can use this feature to check
for incorrect settings.
CHANGE PASSWORD
Follow these steps to change system password. Note that the pass word
cannot be longer than 6 characters.
Page 28 486SH System Board User's Manual