One of the most practical sections of the manual covers the and connector pinouts. Unlike retail motherboards from brands like ASUS or MSI, OEM boards like the Acer H61H2-AD often feature proprietary or non-standard layouts for power buttons, LEDs, and USB ports. The manual provides the necessary diagrams to ensure that: Power and Reset switches are correctly oriented. SATA ports are identified for proper boot drive priority.
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
Inspect the motherboard for any visible damage or defects. Check for: