2 x 240-pin DDR2 DIMM slots, supporting up to 4GB of DDR2 667/800 MHz RAM. Expansion: 1 x PCIe x16, 1 x PCIe x1. Storage: 2 x SATA II connectors and 1 x eSATA port. Front Panel Header Pinout
Connecting a new case to the Acer MCP73T-AD can be tricky due to the lack of clear labeling. The 14-pin front panel header typically follows this configuration: Pin 1 is usually positive (+) 2 & 4 5 & 7 Reset Switch 6 & 8 Power Switch 12 & 14 Oriented sideways compared to others acer mcp73t-ad motherboard manual
