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CA810 Motherboard Product Guide
20
Resume on Ring
The operation of Resume on Ring can be summarized as follows:
• Resumes operation from either the APM sleep mode or the ACPI S1 state
• Requires only one call to access the computer
• Detects incoming call similarly for external and internal modems; does not use the Wake on
Ring connector
• Requires modem interrupt be unmasked for correct operation
Battery
A battery on the motherboard keeps the clock and the values in CMOS RAM current when your
computer is turned off. See Chapter 2 for instructions on how to replace the battery.