Look for stickers on the motherboard itself. Common possibilities:
4x DDR3 slots supporting up to 16GB (Dual-channel, 1066/1333 MHz). Expansion: 1x PCIe x16 (2.0), 2x PCIe x1, 1x PCI. Storage: 6x Serial ATA (SATA II) connectors.
Look for stickers on the motherboard itself. Common possibilities:
4x DDR3 slots supporting up to 16GB (Dual-channel, 1066/1333 MHz). Expansion: 1x PCIe x16 (2.0), 2x PCIe x1, 1x PCI. Storage: 6x Serial ATA (SATA II) connectors.