Advantech AIMB-706, User Manual

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9 AIMB-706 User Manual
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1.8.2 CMOS clear (JCMOS1) and Intel® ME update (JME1)
The AIMB-706 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 JCMOS1 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 alarm (JWDT1+JOBS1)
The AIMB-706 contains a watchdog timer that will reset the CPU. This feature means
the AIMB-706 will recover from a software failure or an EMI problem. The JWDT1
jumper settings control the outcome of what the computer will do in the event the
watchdog timer is tripped.
The 2-pin OBS alarm header (JOBS1) is to enable/disable hardware monitor alarm
function.
Table 1.3: CMOS clear (JCMOS1) and Intel®ME update (JME1)
Function Jumper Setting
* Keep CMOS data
* Enable ME update
Clear CMOS data
Disable ME update
* default setting
1-2 closed
1 2 3
2-3 closed
1 2 3
Table 1.4: Watchdog timer output and OBS alarm (JWDT1+JOBS1)
Function Jumper Setting
Watchdog timer disable (2-4)
OBS beep (8-10)
* Watchdog timer reset (4-6)
OBS beep (8-10)
* default setting
Note! The interrupt output of the watchdog timer is a low level signal. It will be
held low until the watchdog timer is reset.
2-4, 8-10 closed
4-6, 8-10 closed