Asus AAEON EPIC-TGH7, User Manual

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Appendix C – 3-Pin ATX Behavior Description 118
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C.1 3-Pin ATX Behavior Description
For board level power design, the EPIC-TGH7 supports the 3-Pin ATX Power Scheme,
and there are 3 scenarios.
Single Input Power Source – AT mode
Operate as “AT” mode, which the HW design supports “Auto Power Button: Enable”
Case 1:
When p ower supply or power adapter is “powered”, the system will boot up. Manually
trigger PWRBTN# to turn off the computer. However, this only turns off the system,
while the power source continues to supply power to the peripherals, such as cooler,
SATA drive, USB ports, etc.
Case 2:
When p ower supply or power adapter is “powered”, the system wi ll boot up. Manually
turn off the power source directly to perform computer shut down. In this case, the
system is turned off, and the power source will NOT supply power to the peripherals,
meaning the whole system is shut down.