User Manual
Table Of Contents
- 1 Product Description
- 2 Technical Reference
- 2.1 Block Diagrams
- 2.2 Processor
- 2.3 Platform Controller Hub (PCH)
- 2.4 System Memory
- 2.5 Processor Graphics Subsystem
- 2.6 USB port details
- 2.7 Thunderbolt 4
- 2.8 Storage Options
- 2.9 Real-Time Clock Subsystem
- 2.10 LAN
- 2.11 Intel® Virtualization Technology
- 2.12 Intel® Virtualization Technology for Directed I/O
- 2.13 Power Management
- 2.14 Audio Subsystem Software
- 2.15 Connectors, Headers, and Expansion
- 2.16 NUC 13 Extreme Element Headers and Connectors
- 2.17 Wireless Network Module
- 2.18 Antenna Connectors
- 2.19 Internal Power Supply
- 2.20 Add-in Card Limitations
- 2.21 NUC 13 Extreme Kit Dimensions
- 2.22 Thermal Considerations
- 2.23 Reliability
- 2.24 Environmental
- 2.25 Shipping Considerations for System Integrators
- 2.26 Optional Fan Mounting Locations
- 3 Overview of BIOS Features
- 4 Characterized Errata
15
2.9 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 via the power supply 5 V
STBY rail.
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 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 4 shows the location of the battery.