Acer H81h3am V10 Manual Site

This is not a retail motherboard you would buy in a store. It is a proprietary OEM motherboard made for Acer Predator and Acer Aspire desktop PCs (e.g., Predator G3-605, Aspire T3-715, ATC-705).

Do not plug a standard ATX power supply into this board without checking voltage and pinout. Some Acer H81H3-AM boards (especially in Predator G3 series) use a 12V‑only main power connector (12V on pin 14, no 3.3V/5V on main block). Using a regular PSU can short or damage the board. acer h81h3am v10 manual

Since you lack a true manual, here is the default configuration for the front panel header (JFP1) and CMOS jumper. This is not a retail motherboard you would buy in a store