Acer H61h2-ad Motherboard Manual [verified] Link

If your motherboard turns on but fails to post to the BIOS screen, use these steps to diagnose the problem:

Front panel headers for power button, reset, and HDD LED.

Acer, like many OEMs (HP, Dell), often deviates from standard ATX form factors. Acer H61h2-ad Motherboard Manual

Press the power button, and immediately tap the key or the F2 key repeatedly. The BIOS setup utility screen will appear. Common Upgrades and Pitfalls

Official documentation for the H61 chipset usually cites 16GB, but many Acer-specific configurations (like the Aspire X3990 ) may be limited to due to BIOS or hardware design. Expansion Slots: 1x PCIe x16 Gen 2.0 (for dedicated graphics). 1x PCIe x1. 2x or 4x SATA II 3Gb/s connectors (varies by revision). The Retro Web Connector & Jumper Guide If your motherboard turns on but fails to

Because this is an OEM board, a standalone retail manual is rarely available. Acer H61H2-AD - The Retro Web

The H61H2-AD supports a wide range of Sandy Bridge (2nd Gen) and Ivy Bridge (3rd Gen) processors: i7-2600, i7-3770. Core i5: i5-2300, i5-2400, i5-3450, i5-3570. Core i3: i3-2100, i3-3220. Pentium/Celeron: G620, G850, G1610. Front Panel Header Pinout (F_PANEL) The BIOS setup utility screen will appear

If you install a newer graphics card (like a GTX 10-series, RX 500-series, or newer) into this motherboard, you might get a black screen or a hang on the Acer logo.

The Acer H61H2-AD supports dual-channel memory configuration. 2 DDR3 DIMM slots. Maximum Capacity: 16GB (8GB per slot). Speed: DDR3 1333/1600 MHz. Type: 240-pin DDR3 UDIMM (Non-ECC).