BLKD815EPFVU Intel, BLKD815EPFVU Datasheet - Page 29

• Manufacturer Part Number: BLKD815EPFVU
• Manufacturer: Intel

Specifications of BLKD815EPFVU

• Lead Free Status / Rohs Status: Supplier Unconfirmed

1.8.1.2.3
✏
1.8.1.3
The real-time clock provides a time-of-day clock and a multicentury calendar with alarm features.
The real-time clock supports 256 bytes of battery-backed CMOS SRAM in two banks that are
reserved for BIOS use.
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.
The time, date, and CMOS values can be specified in the BIOS Setup program. The CMOS values
can be returned to their defaults by using the BIOS Setup program.
If the battery and AC power fail, custom defaults, if previously saved, will be loaded into CMOS
SRAM at power-on.
The system BIOS is stored in the 4 Mbit FWH.
NOTE
Firmware Hub (FWH)
Real-Time Clock, CMOS SRAM, and Battery
Product Description
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