1-22 Technical Information
The power supply supports remote power on/off. This means that the system board and
riser card can turn off the system power through software control. Pin 14 of the power
supply connector lets the system board recognize a power supply that supports this “soft-
off” feature.
To enable soft-off control in software, power management (PM) must be enabled in the
operating system. When the system BIOS receives the correct PM command from the
operating system, the BIOS turns off power to the computer. For example, in the Windows
95 Start menu, the user selects Shutdown to turn off the power.
Depending on how “Restore On AC/Power Loss” is configured in the Setup utility (see
“Boot Menu” in Section 2), if power to the computer is interrupted by a power outage or a
disconnected power cord, when power resumes, the computer returns to the state it was in
before the power interruption. The default CMOS setting for a power loss is “Last State.”
RISER CARD
The riser card serves as an interface between the system board and the network and
between the system board and any installed PCI expansion board. The riser card contains an
RJ-45-compatible LAN connector for connecting the system to an Ethernet network. The
card also contains a PCI expansion slot for installing a half-length PCI expansion board. The
riser card connects to the system board through a 170-pin edge connector and also
cable-connects to the power supply to provide DC power to the NetPC system components.
The riser card contains one primary IDE connector for the system’s hard disk and also
contains a diskette drive connector. For more information on riser card features, see
Table 1-21. Connector pin assignments for the riser card are provided in Appendix B.
MOUSE
A Microsoft
IntelliMouse
is standard equipment for the system. This PS/2-compatible
mouse has two buttons and a cursor control button. The mouse has a self-cleaning
mechanism that prevents a buildup of dust or lint around the mouse ball and tracking
mechanism. The six-pin mouse cable connector plugs into the rear of the system. Mouse
specifications are given in Table 1-14.
KEYBOARD
The PS/2-compatible keyboard is standard equipment for the system. The keyboard
provides a numeric keypad, separate cursor control keys, 12 function keys, and is capable of
up to 48 functions. Key status lamps on the keyboard include Num (Numeric) Lock, Caps
(Capital) Lock, and Scroll Lock. The keyboard’s six-pin connector plugs into the rear of the
system. Keyboard specifications are given in Table 1-15.
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