how to set the power mode from at to atx? -...
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How to set the power mode from AT to ATX? HARDWARE 1. Please prepare one Power Feature Cable and one ATX switch with cable.
Power Feature Cable ATX switch with cable
2. Remove the yellow jumper (CN20) upon the battery on SBC.
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3. Please connect power feature cable to the CN1 on the backplane.
4. Connect another side of power feature cable to CN20 on SBC.
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5. Please connect the ATX switch cable to CN21 on SBC.
6. After connecting the ATX switch cable to CN21…
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APPENDIX BIOS If the only requirement is the OS needs to display the message that you can turn off the computer safely, BIOS setup doesn’t need to be changed. However, if you need more protections, please follow the below setups: 1. CPU over temperature warning
a. Please use jumper to short CN22 on SBC. (Refer to figure 1 below.) b. Set PC Health Status/CPU Warning Temperature to 60℃ (suggested).
Note: CPU will send out an alarm when the CPU temperature reaches the setting
temperature if you enable this function.
Figure 1 Hardware monitor alarm setting
Figure 2 CPU warning temperature setting
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2. Auto-shutdown when CPU is over temperature a. Since this function needs ACPI support, please enable ACPI function in
BIOS first (Figure 3), and then re-install the OS. After installation, the computer becomes ACPI PC (Figure 4).
b. Set PC Health Status/CPU Warning Temperature to 70℃ (suggested). Note: CPU will send out a signal to shutdown the computer when the CPU
temperature reaches the setting temperature if you enable this function.
Figure 3 Power supply type and ACPI function
Figure 4 ACPI OS
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3. Decrease the CPU frequency when CPU is over temperature This function can decrease CPU frequency when CPU reaches 70℃. The decrease ratio is from 12.5% to 87.5%, default setting is 50% (suggested).
Figure 5 CPU THRM-Throttling setting
4. System will auto-reboot when power on after power fail System will auto-reboot when power on after power fail if you enable this function in BIOS. (Figure 6)
Figure 6 Power on after PWR-Fail setting
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ADDITIONAL NOTICE Since Clear CMOS is an electrical signal (Hardware), not related to BIOS, and OS has been installed, changing the ACPI Function in BIOS won’t affect the OS shutdown message. (System will still show the message that the system can be turned off safely.)