Intel BLKD945GCLF Product Specification - Page 21

Real-Time Clock Subsystem

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Product Description NOTE Many Serial ATA drives use new low-voltage power connectors and require adapters or power supplies equipped with low-voltage power connectors. For more information, see: http://www.serialata.org/ For information about The location of the Serial ATA IDE connectors Refer to Figure 9, page 42 1.7 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 3.3 VSB applied. NOTE If the battery and AC power fail, custom defaults, if previously saved, will be loaded into CMOS RAM at power-on. When the 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. Figure 1 on page 12 shows the location of the battery. 21

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Product Description
21
±
NOTE
Many Serial ATA drives use new low-voltage power connectors and require adapters or
power supplies equipped with low-voltage power connectors.
For more information, see:
For information about
Refer to
The location of the Serial ATA IDE connectors
Figure 9, page 42
1.7
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 3.3 VSB applied.
±
NOTE
If the battery and AC power fail, custom defaults, if previously saved, will be loaded
into CMOS RAM at power-on.
When the 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.
Figure 1 on page 12 shows the location of the battery.