Working With Windows Nt 3.51; Power Management Limitations - HP OmniBook 800 Evaluator Manual

Using Windows NT 3.51

Working with Windows NT 3.51

Working with Windows NT 3.51
This section describes how to customize the OmniBook for use with Windows NT
3.51 including:
Power management and Plug and Play with Windows NT 3.51.
Desktop mode.
Instant On/Off mode.

Power management limitations

Windows NT 3.51 is not aware of Advanced Power Management (APM) or
compatible with Plug and Play. This presents a challenge for mobile users who want
to use Windows NT with their portable computer. Be aware of the following
limitations:
PC cards (PCMCIA) cannot be hot swapped into the OmniBook. Windows NT
does not support dynamic allocation of resources. Reboot after inserting PC
cards into the computer.
The operating system's clock stop when the OmniBook is suspended and does
not re-synchronize with the hardware clock when resuming. When operation
resumes, NT's clock starts up exactly where it was when it stopped. Rebooting
resets the clock.
PC card sockets are not turned back on after resuming. PC cards are inoperable
after a true suspend-resume cycle. The sockets retart when you reboot the
OmniBook.
The OmniBook's Display Off (pressing blue On/Off with ac inserted) mode does
not cause these symptoms, since only the display, keyboard, sound, and mouse
are turned off by the BIOS. The CPU and network cards are still active and
operating normally.
4-14