Intel BLKDH61CR Datasheet download pdf (Page 27)

Desktop Board Features

Wake from PS/2 Devices

PS/2 device activity wakes the computer from an ACPI S3 state.

Onboard Speaker

A speaker is mounted on the Desktop Board. The speaker provides audible error code

(beep code) information during the Power-On Self-Test (POST). Refer to Appendix A

for a description of the beep codes that may be generated during the POST.

Real-Time Clock Subsystem

A coin-cell battery (CR2032) powers the real-time clock and CMOS memory. When

the computer is not plugged into a wall socket, the battery has an estimated life of

three years. When the computer is plugged in, the standby current from the power

supply extends the life of the battery.

The clock is accurate to ± 13 minutes/year at 25 ºC with standby power applied by the

power supply.

NOTE

If the battery and AC power fail, date and time values will be reset and the user will be

notified during the POST.

When the battery voltage drops below a certain level, the BIOS Setup program

settings stored in CMOS RAM (for example, the date and time) might not be accurate.

Replace the battery with an equivalent one. Go to page 55 for instructions on how to

repl

ace the battery.

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Intel BLKDH61CR Datasheet Page 27