AIMB-277 User Manual
8
1.8.2
CMOS Clear (JCMOS1)
The AIMB-277 motherboard contains a jumper that can erase CMOS data and reset
the system BIOS information. Normally this jumper should be set with pins 1-2
closed. If you want to reset the CMOS data, set CMOS1 to 2-3 closed for just a few
seconds, and then move the jumper back to 1-2 closed. This procedure will reset the
CMOS to its default setting.
1.8.3
Watchdog Timer Output and OBS Beep (JWDT1+JOBS1)
1.8.4
ATX/AT Mode Selection (PSON1)
Table 1.2: JCMOS1
Function
Jumper Settings
Keep CMOS data (Default)
Clear CMOS data
1-2 closed
1
2-3 closed
1
Table 1.3: 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)
Table 1.4: ATX/AT Mode Selection (PSON1)
Function
Jumper Setting
ATX Mode (Default)
AT Mode
Summary of Contents for AIMB-277
Page 10: ...AIMB 277 User Manual x...
Page 11: ...Chapter 1 1 General Information...
Page 21: ...Chapter 2 2 Connecting Peripherals...
Page 30: ...AIMB 277 User Manual 20 2 13 eSPI Interface Connector ESPI1 2 TX 3 TX 4 GND 5 RX 6 RX 7 GND...
Page 36: ...AIMB 277 User Manual 26 2 23 CMOS Battery Connector BAT1 2 24 CPU Socket CPU1...
Page 38: ...AIMB 277 User Manual 28...
Page 39: ...Chapter 3 3 BIOS Operation...
Page 74: ...AIMB 277 User Manual 64 3 3 2 4 HD Audio Configuration HD Audio Enabled 3 4 Security...
Page 78: ...AIMB 277 User Manual 68...
Page 79: ...Chapter 4 4 Software Introduction Service...
Page 82: ...AIMB 277 User Manual 72...
Page 83: ...Chapter 5 5 Chipset Software Installation Utility...
Page 85: ...Chapter 6 6 VGA Setup...
Page 87: ...Chapter 7 7 LAN Configuration...
Page 90: ...AIMB 277 User Manual 80...
Page 91: ...Appendix A A I O Pin Assignments...
Page 111: ...101 AIMB 231 User Manual Appendix A I O Pin Assignments...