Fortec Star CM1-BT1, Руководство пользователя

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Using the Module 69
CMx-BTx
4.4.52 Save & Exit
4.5 Temperature Sensors
The CMx-BTx uses two different temperature sensors. The first is provided by the SoC and the
second is an LM73 which is connected to the BMC.
While the first one can only signal a catastrophic thermal situation within the SoC and cause a
transition to S5, the second can be accessed through SEMA.
4.6 Real Time Clock (RTC)
The CMx-BTx contains a Real Time (time of day) Clock (RTC), which can be backed up with an
external Lithium Battery. The CMx-BTx will function without a battery in those environments
which prohibit batteries. The CMx-BTx will also continue to operate after the battery life has
been exceeded. Under these conditions all setup information is restored from the on-board flash
memory during POST along with the default date and time information.
To connect an external RTC battery, use the system panel, open-end cable wires
connected to pin 5 and pin 8 on connector CN20.
Some operating systems require a valid default date and time to function.