ASUS M4A78LT-M LX - AMD G CHIPSET - SOCKET AM3 PHENOM II, ATHLON II, *Refer to for the AMD CPU support list EPU-4 Engine. MOTHERBOARD ASUS M4A78LT-M LX. # 10 USB / ports (6 ports at mid-board, 4 ports at back panel). ASUS EPU-4 Engine Turbo Key. Asus AMD Performance Bundle (Includes M4A78LT-M Motherboard, AMD Phenom II X2 RAM Supported: 4 DIMM slots - DDR3, non-ECC, ECC, unbuffered.