(Some user reports suggest 16GB may work with specific BIOS versions, but 8GB is the official limit). SATA Ports 2x SATA II (3Gb/s). Front Panel Header Pinout (F_PANEL)
CLR_CMOS or JCMOS1.Generally only provided through Acer's official support page for the specific desktop model the board was shipped in. Acer H61h2-ad Motherboard Manual
Connecting the power button and LEDs is the most common reason users seek the H61H2-AD manual . The header typically follows a standard 9-pin layout with Pin 9 or 10 missing: : Pins 1 (+) & 3 (-) or 1 & 2. Power LED (PWR_LED) : Pins 2 (+) & 4 (-). Power Switch (PW_SW) : Pins 6 & 8. Reset Switch (RES_SW) : Pins 5 & 7. Acer H61H2-AD - The Retro Web Acer H61H2-AD Motherboard Manual: A Comprehensive Guide 8GB
It was unmarked, sealed with brittle packing tape the color of old bone. The shipping label was torn, but he could make out one line: Acer H61h2-ad Motherboard Manual . No return address. No date. Location: Near the SATA ports and the round CMOS battery
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The manual highlights support for the LGA 1155 socket. This is the defining feature of the board. It supports the "Sandy Bridge" architecture. If you are looking to upgrade this system today, the ceiling is quite low. You can install an i7-2600 or i5-2500, but you cannot install 3rd or 4th generation Intel chips without swapping the motherboard.