Acer does not always make standalone motherboard manuals easily available to the public, as these boards are often bundled with complete system guides. This article serves as a comprehensive replacement manual. We will cover every aspect of the Acer H81H3-AM V1.0, including pinouts, BIOS configuration, supported CPUs, RAM compatibility, and common repairs.
If you cannot find the service guide, here are typical locations:
: Standard 9-pin internal connector for front-chassis USB 2.0 ports.
Connect the Power LED cable. Pin 2 is Positive ( ), and Pin 4 is Negative ( −negative 4. Power Supply Installation (PSU Requirements) Acer H81h3-am V1.0 Manual
A: Yes, using VGA + HDMI simultaneously. Or use the iGPU + a discrete GPU for up to 4 monitors.
1 x PCI Express x16 (Gen 3.0), 1 x PCI Express x1, 1 x Conventional PCI 2 x SATA III (6.0 Gb/s) ports, 2 x SATA II (3.0 Gb/s) ports Audio Realtek ALC662 6-channel High Definition Audio Networking Realtek RTL8111G Gigabit Ethernet (10/100/1000 Mb/s) 2. I/O Panel and Internal Connectivity
It utilizes a standard 24-pin ATX main power supply connector paired with a 4-pin 12V ATX CPU power connector . Unlike some proprietary OEM boards, this standard setup allows you to use standard aftermarket power supplies. Acer does not always make standalone motherboard manuals
1 x PCI Express x16 Gen 2.0, 1 x PCI Express x1, 2 x Legacy PCI Slots 2 x SATA III (6.0 Gb/s) ports, 2 x SATA II (3.0 Gb/s) ports Form Factor
The motherboard only supports .
While this guide is exhaustive, you may still want the official PDF. Acer does not host this manual directly on their main support page for the motherboard alone. Instead, you must search by the . If you cannot find the service guide, here
| Category | Details | | :--- | :--- | | | Acer H81H3-AM V1.0 | | CPU Socket | LGA 1150 | | Chipset | Intel H81 Express Chipset | | CPU Support | Supports Intel 4th Gen Core (Haswell) i3/i5/i7, Pentium, and Celeron series processors | | Memory | 2 x 240-pin DDR3 DIMM slots; Supports dual-channel DDR3 up to 1600MHz; Maximum capacity of 16GB (non-ECC, unbuffered) | | Expansion Slots | 1 x PCI Express x16 (Gen 2.0); 2 x PCI Express x1 (Gen 2.0); 2 x PCI Slots (rev 2.2) | | Storage | 2 x SATA III (6Gb/s) connectors; 2 x SATA II (3Gb/s) connectors | | Audio | Realtek ALC662 6-channel High Definition Audio Codec | | LAN | Realtek 8111G Gigabit Ethernet Controller | | Rear I/O Ports | 1 x PS/2 Keyboard/Mouse combo port; 1 x D-Sub (VGA); 1 x DVI-D; 2 x USB 3.1 Gen1; 4 x USB 2.0; 1 x RJ-45 LAN; 1 x COM port; 3 x Audio jacks (Line Out, Line In, Mic In) | | Internal Headers | 24-pin ATX Power; 4-pin 12V CPU Power; 4-pin CPU_FAN; 4-pin SYS_FAN; Front Panel Audio; Front USB 2.0 (2 headers); COM header; LPT header; Speaker header; CLR_CMOS header | | Form Factor | Proprietary / microATX (approx. 24.4 cm x 23.0 cm) | | Key Feature | Proprietary Format. This board has a non-standard shape and mounting hole layout, designed specifically for Acer Veriton M2631 cases. It is not compatible with standard ATX or microATX cases without significant modification. |
Many Acer OEM boards lack printed pin labels. Look for tiny silkscreen text near edges.
: Populating both slots with identical memory modules optimizes data bandwidth automatically. 4. Expansion Slots and Storage Graphics and Expansion