9 AIMB-286 User Manual
Chapter 1 General Information
1.8.3 Power Switch/HDD LED/SMBUS/Speaker Pin Header (JFP1)
1.8.4 Power LED and Keyboard Lock Pin Header (JFP2)
1.8.5 Watchdog Timer Output and OBS Beep (JWDT1+JOBS1)
Table 1.4: Power Switch/HDD LED/SMBUS/Speaker Pin Header (JFP1)
Pin Signal Pin Signal
1 +5V 2 HDDLED+
3 Power Button+ 4 NC
5 HDDLED- 6 Power Button-
7 SPK_P3 8 SMB_DATA
9 System Reset+ 10 SPK_P4
11 SMB_CLK 12 System Reset-
Table 1.5: Power LED and Keyboard Lock Pin Header (JFP2)
Pin Signal
1 LED Power
2NC
3GND
4 Keyboard LOCK#
5GND
Table 1.6: Watchdog Timer Output and OBS Beep (JWDT1+JOBS1)
Function Jumper Setting
Watchdog Timer Output(2-3) (Default)
OBS BEEP(4-5) (Default)
(2 and 3)+(4 and 5)
Watchdog Timer Disable (1-2)
OBS BEEP(4-5) (Default)
(1 and 2)+(4 and 5)