Hardware Installation
3-10
3.6. CMOS RTC & ISA CFG CMOS RAM
There're RTC & CMOS RAM on board; they have a power supply from external
battery to keep the DATA inviolate & effective. The RTC is a REAL-TIME
CLOCK device, which provides the DATE & TIME to system. The CMOS RAM
is used for keeping the information of system configuration, so the system can
automatically boot OS every time. Since the lifetime of internal battery is 5
years, the user can change a new Battery to replace old one after it cannot
work.
0
Danger of explosion if battery is incorrectly replaced.
0
Replace only with the same or equivalent type recommended by the
manufacturer.
0
Dispose of used batteries according to the manufacturer’s instructions.
3.7. SPEAKER CONNECTOR INSTALLATION
There is a speaker in AT system for sound purpose. The 4
-
Pins connector
SPKR
is used to connect speaker.
3.8. HARDWARE RESET SWITCH CONNECTOR INSTALLATION
The RESET switch on panel provides users with HARDWARE RESET function.
The system will do a cold start after the RESET switch is pushed and released
by user. The RESET switch is a 2 PIN connector and should be installed to
RST
on main board.
3.9. POWER LED CONNECTOR INSTALLATION
System has power LED lamp on the panel of chassis. The power LED will light
on off or flash to indicate which step on the system. The connector should be
connected to
P+P-P-
of main board in a correct direction.
3.10. IDE & ATAPI DEVICE INSTALLATION
There are two-Enhanced PCI IDE ports (
IDE1, IDE2
) on board, which following
ATAPI standard SPEC. Each IDE port can connected to two ATAPI devices
(IDE Hard Disk, CD-ROM or Tape Driver), so total four ATAPI devices can exist
in a system. The
HD
is the active LED port for ATAPI devices.