Acer H81h3-am V1.0 Manual Jun 2026

3.5mm jacks for Line-out (lime) and Microphone (pink). Where to Download Documentation

: 3 x 3.5mm jacks (Line-In/Blue, Line-Out/Green, Microphone/Pink). 📐 Internal Headers and Pin Configuration

Here are solutions for some common problems:

It does the job it was designed for (powering a cheap office PC), but its proprietary nature makes it a poor choice for upgrades or repairs compared to standard motherboards. Acer H81h3-am V1.0 Manual

Realtek ALC662 6-channel High Definition Audio CODEC. LAN: Realtek 8111G Gigabit Fast Ethernet Controller. USB: Support by H81 Express Chipset: 2 x USB 3.0 ports (Rear I/O). 8 x USB 2.0 ports (4 in rear, 4 via internal headers). Form Factor: MicroATX (Often fits in compact Acer cases). 2. Motherboard Layout & Connector Overview

A mix of USB 3.0 (blue) for high-speed data and USB 2.0 for peripherals like keyboards.

Turn on the computer and immediately tap the key or the F2 key repeatedly until the system setup utility screen appears. Resetting BIOS (Clear CMOS) Realtek ALC662 6-channel High Definition Audio CODEC

Move the plastic jumper cap from pins 1-2 (default) to for 10 seconds. Move the jumper back to pins 1-2 . Plug the system back in and power it on. Memory Upgrade Rules

Reconnect power and boot the system. Alternative: Remove the CR2032 coin-cell battery for 5 minutes while unplugged.

: Headers for power switch, reset switch, and LED indicators, plus a Front Panel Audio header. Clear CMOS jumper is available to reset the BIOS settings to factory defaults if the system fails to boot. 8 x USB 2

2 x DDR3 DIMM slots, Dual-Channel, Max 16GB (1333/1600 MHz, Non-ECC, Unbuffered)

This 9-pin header connects the headphone and microphone jacks on your computer case to the integrated Realtek audio chip. : Standard Intel HD Audio pin configuration.