User Manual
Table Of Contents
- Notices
- Safety information
- Chapter 1
- Chapter 3
- BIOS setup
- 3.1 BIOS Setup program
- 3.2 Main menu
- 3.3 Advanced menu
- 3.3.1 PCH-FW Configuration
- 3.3.2 Trusted Computing
- 3.3.3 CPU Configuration
- 3.3.4 Graphics Configuration
- 3.3.5 PCI Express Configuration
- 3.3.6 CSM Configuration
- 3.3.7 Super IO Configuration
- 3.3.8 Serial Console Redirection
- 3.3.9 SATA Configuration
- 3.3.10 Network Stack Configuration
- 3.3.11 USB Configuration
- 3.3.12 NVMe Configuration
- 3.3.13 Onboard Devices Configuration
- 3.3.14 Miscellaneous
- 3.3.15 APM Configuration
- 3.3.16 EzFlash
- 3.3.17 Watchdog Timer
- 3.4 Hardware Monitor menu
- 3.5 Security menu
- 3.6 Boot menu
- 3.7 Exit menu
- Appendix
- BIOS setup
2-21
Chapter 2: Motherboard information
8. Speaker header (4-pin SPEAKER)
The 4-pin header is for the chassis-mounted system warning speaker. The speaker
allows you to hear system beeps and warnings.
+5V
GND
GND
Speaker Out
SPEAKER
PIN 1
Connector type
HEADER 1x4p, 2.54mm pitch, S/T
9. Chassis Intrusion header (4-1 pin_CHASSIS)
This header is for a chassis-mounted intrusion detection sensor or switch. Connect
one end of the chassis intrusion sensor or switch cable to this connector. The chassis
intrusion sensor or switch sends a low-level signal to this connector when a chassis
component is installed. The signal is then generated as a chassis intrusion event.
Connector type
HEADER 4p, K2, 2.54mm pitch
+5VSB_MB
Chassis Signal
GND
CHASSIS
PIN 1