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S1680S-001-02 http://www.tyan.com
Connectors:
Block J45:
Pin No. Definition
2-3
EXT SMI
15-16
IDE LED
18-20
Power LED
22 & 23 Reset
24-27
Speaker
(Refer to Page 11 for more details)
J5, J6:
Universal Serial Bus (J5: USB2, J6: USB1)
CON 1 & 5:
CON5: COM1, CON1: COM2
CON 2:
Primary IDE
CON 3:
Secondary IDE
CON 4:
FDD
CON 6:
LPT1
CON 7:
IR2
2.4 CMOS RTC(Real Time Clock)
The CMOS RTC includes an internal battery and real time clock circuit
which provides the date and the time, and the CMOS Chipset Default Reg-
ister for the system. Normally, the life span of a RTC internal battery is
more than 10 years. This RTC chip cannot be field upgraded and can only
be changed at a Tyan repairing facility.
