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S1662-AT-001 http://www.tyan.com
I/O Selection: J19 & J18
J19
J18
For COM 1 and 2
1-2
1-2
Default
For InfraRed
2-3
2-3
3.3 CMOS RTC
CMOS RTC includes an internal battery and Real Time Clock circuit. It
provides the date and the time for the system. Normally the life span of a
RTC internal battery is 10 years. When replacing, you should use the same
model.
3.4 Speaker Connector Installation
S1662 provides a 4-Pin header (J33) to connect the speaker. The polarity
can go either way.
3.5 Turbo Switch
The front panel on your case may have a turbo switch to control system
speed when slower program execution is required for software developed
in the old XT days.
The Intel 440FX chipset doesn't support a de-turbo mode, but the S1662
has a connector (J30) for the cable that may come with the case.
3.6 Turbo LED Connector Installation
The TURBO LED on the front case panel can indicate the current speed
status of the system. The TURBO LED connector should be installed to
J29 in the correct direction.
