Intel DX58SO
Socket B 1366, 1600 MHz FSB, Supported Processor Intel Core i7 / Intel Core2 Duo / Intel Core2 Extreme, System Chipset Intel X58, Audio Chipset Realtek ALC889, LAN Chipset Intel 82567LM / Intel 82578DC, Memory Technology DDR3 (16 GB Max Supported RAM), Memory Frequency 1066 / 1600 / 1333 MHz, 4 Memory Slots