Acer H81h3-am V1.0 Manual Portable -
This header allows you to connect the headphone and microphone jacks on your computer case. It follows the standard pin assignment. Do not force an old AC'97 cable onto this layout. Internal USB Headers (F_USB1 / F_USB2)
Acer H81H3-AM V1.0 " is a proprietary motherboard manufactured by for Acer, designed primarily for 4th Generation Intel Haswell processors . It was commonly found in Acer Veriton desktop models like the Veriton X2631G.
Double-check the 4-pin CPU power cable. It is often missed in new builds.
| Category | Specification | | :--- | :--- | | | Acer H81H3-AM v1.0 | | Form Factor | microATX (approximate size: 244mm x 200mm) | | CPU Socket | LGA 1150 | | Compatible CPUs | Intel 4th Gen (Haswell) Core i7/i5/i3, Pentium, Celeron series | | Chipset | Intel H81 Express | | Memory | 2 x 240-pin DDR3 DIMM slots, supporting up to 16GB of DDR3 1600/1333/1066 MHz memory (Dual-channel architecture) | | Graphics | Integrated graphics via CPU (DVI-D & VGA ports on rear panel) | | Expansion Slots | 2 x PCI Express x16 Gen 2.0 slots*, 2 x PCI Express x1 Gen 2.0 slots, 2 x PCI slots | | Storage | 2 x SATA III (6Gb/s) ports, 2 x SATA II (3Gb/s) ports | | 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, 1 x DVI-D, 1 x VGA (D-Sub), 1 x COM port, 4 x USB 2.0, 2 x USB 3.1 Gen1, 1 x RJ-45 LAN, 1 x Audio ports (Line Out/In/Mic In) | | Internal Connectors | 1 x 24-pin ATX, 1 x 4-pin 12V, 1 x CPU_FAN, 1 x SYS_FAN, 2 x USB 2.0 headers, 1 x CLR_CMOS header, 1 x Serial port header (COM), 1 x Parallel port header (LPT) |
Plug the wide 24-pin ATX power cable from your power supply unit (PSU) into the main motherboard power port. Acer H81h3-am V1.0 Manual
Secure the CPU cooler on top and plug the fan cable into the CPU_FAN header. 2. RAM Installation
| Symptom | Likely Cause | Fix | |---------|--------------|-----| | No power, fans not spinning | PSU dead or front panel header miswired | Test PSU with paperclip; rewire Power SW pins 6 & 8 | | Turns on, no display | RAM unseated or incompatible CPU | Reseat RAM; test with known working stick | | USB 3.0 ports not working | Missing driver in Windows | Install Intel USB 3.0 driver for H81 | | CMOS checksum error | Dead battery (CR2032) | Replace battery; re-enter BIOS | | Boot loop after CPU upgrade | BIOS too old for Haswell Refresh | Reinstall old CPU → update BIOS | | No audio from rear jacks | Realtek driver not installed or front panel detection enabled | Disable front jack detection in Realtek console |
If you need help troubleshooting a specific issue with this motherboard, let me know: What and RAM model are you currently using?
This is often a RAM seating issue or a failed CMOS battery. Reseat RAM, clear CMOS, and ensure the monitor is connected to the correct port (if using a discrete GPU, do not use VGA/HDMI on the board). This header allows you to connect the headphone
of non-ECC, unbuffered SDRAM at speeds of 1066/1333/1600 MHz.
An ultimate guide to the Acer H81h3-am V1.0 motherboard helps users install, upgrade, and troubleshoot this reliable OEM board. Originally manufactured by ECS (Elitegroup Computer Systems) for Acer desktop systems like the Veriton series, this micro-ATX motherboard uses the Intel H81 chipset. Since official standalone manuals for proprietary OEM boards are notoriously difficult to find, this comprehensive guide serves as your complete manual. Specification Overview
4th Gen Intel Core i3, i5, i7, Pentium, and Celeron (Haswell architecture). Memory: Typically supports 2x DDR3 DIMM slots. Rear I/O Ports: Video: HDMI and often VGA or DVI. USB: Mix of USB 3.0 (blue) and USB 2.0 ports. Networking: RJ-45 LAN port (Realtek Gigabit Ethernet).
+-------------------------------------------------------+ | [Rear I/O Ports] [4-pin CPU_PWR] | | [LGA 1150 CPU] | | [PCIe x1] | | | | [PCIe x16 Graphics] [Intel H81] [DDR3 DIMM1]| | [Chipset] [DDR3 DIMM2]| | [PCI Slot 1] | | [24-pin ATX]| | [PCI Slot 2] [SATA3_1/2] | | [F_AUDIO] [CLR_CMOS] [SATA2_1/2] [F_PANEL] | +-------------------------------------------------------+ 3. Front Panel Header (F_PANEL) Pinout Diagram Internal USB Headers (F_USB1 / F_USB2) Acer H81H3-AM V1
Many Acer OEM boards lack printed pin labels. Look for tiny silkscreen text near edges.
Understanding the hardware limits prevents component damage during upgrades. Intel LGA 1150 Chipset: Intel H81 Express
: i7-4790, i5-4570, i5-4440, i3-4130, Pentium G3220, and Celeron G1820. : Features 2 DIMM slots supporting up to of DDR3 SDRAM.
The Acer H81H3-AM motherboard uses . This means you can power the board with any standard, off-the-shelf ATX power supply, not just a proprietary Acer unit. If you are upgrading a pre-built system, this allows for easy replacement or upgrade of the power supply.