Acer H81h3-am V1.0 Manual -

| OS | Support | Driver Availability | |----|---------|---------------------| | Windows 10 | Full (32/64-bit) | Acer provides all: chipset, LAN, audio, USB 3.0 | | Windows 8.1 | Full | Native support | | Windows 7 | Limited | Needs USB 3.0 pre-installation (use PS/2 keyboard/mouse) | | Linux (Ubuntu, Mint) | Excellent | Kernel 5.x+ includes native H81 support |

Missing drivers? Search for “Intel H81 chipset driver,” “Realtek RTL8111G driver,” and “Realtek ALC662 audio driver.” Snappy Driver Installer (SDI) is a helpful offline tool for OEM boards. Acer H81h3-am V1.0 Manual

Recommended upgrade: 2 x 8GB DDR3-1600 CL11. Avoid ECC or registered DIMMs. | OS | Support | Driver Availability |

| Pin | Signal | Pin | Signal | |-----|--------|-----|--------| | 1 | HDD LED (+) | 2 | Power LED (+) | | 3 | HDD LED (-) | 4 | Power LED (-) | | 5 | Reset SW | 6 | Power SW | | 7 | Reset SW | 8 | Power SW | | 9 | NC | 10 | (key – no pin) | Avoid ECC or registered DIMMs

Solution:

Located near the SATA ports or the bottom edge. By default, jumper bridges pins 1-2. To clear CMOS: