CPU Support for Intel Core™ i 7 processors/ Intel Core™ i 5 processors/ Intel Core™ i 3 processors/ Intel Pentium processors/ Intel Celeron processors in the LGA1155 package L3 cache varies with CPU (Some Intel Core™ processors require a graphic card, please refer "CPU support List" for more information.) Chipset Intel H61 Express Chipset Memory 2 x 1.5V DDR3 DIMM sockets supporting up to 16 GB of system memory * Due to Windows 32-bit operating system limitation, when more than 4 GB of physical memory is installed, the actual memory size displayed will be less than 4 GB. Dual channel memory architecture Support for DDR3 1333/1066/800 MHz memory modules Support for non-ECC memory modules (Please refer " Memory Support List" for more information.) Audio Realtek ALC887 codec High Definition Audio 2/4/5.1/7.1-channel * To configure 7.1-channel audio, you have to use an HD front panel audio module & enable the multi-channel audio feature through the audio driver. Support for S/PDIF Out LAN 1 x Atheros 8151 LAN chip (10/100/1000 Mbit) Expansion Slots 1 x PCI Express x 16 slot, running at x 16 (The PCI Express x 16 slot conforms to PCI Express 3.0 standard.) * PCIE Gen.3 is dependent on CPU & expansion card compatibility. 2 x PCI Express x 1 slots (All PCI Express x 1 slots conform to PCI Express 2.0 standard.) 3 x PCI slots Storage Interface Chipset: 4 x SATA 3 Gb/s connectors (SATA2 0~3) supporting up to 4 SATA 3 Gb/s devices Marvell 88SE9172 chip: 2 x SATA 6 Gb/s connectors (GSATA3 4~5) supporting up to 2 SATA 6 Gb/s devices Support for RAID 0 & RAID 1 USB (Universal Serial Bus) Chipset: Up to 6 USB (Universal Serial Bus) 2.0/1.1 ports (2 ports on the back panel, 4 ports available through the internal USB (Universal Serial Bus) headers) Etron EJ168 chip: Up to 2 USB (Universal Serial Bus) 3.0/2.0 ports on the back panel Internal I/O Connectors 1 x 24-pin ATX main power connector 1 x 4-pin ATX 12V power connector 4 x SATA 3 Gb/s connectors 2 x SATA 6 Gb/s connectors 1 x CPU fan header 2 x system fan headers 1 x power fan header 1 x front panel header 1 x front panel audio header 1 x S/PDIF Out header 2 x USB (Universal Serial Bus) 2.0/1.1 headers 1 x Clear CMOS jumper Back Panel Connectors 1 x PS/2 keyboard port 1 x PS/2 mouse port 1 x parallel port 1 x serial port 1 x coaxial S/PDIF Out connector 2 x USB (Universal Serial Bus) 2.0/1.1 ports 2 x USB (Universal Serial Bus) 3.0/2.0 ports 1 x RJ-45 port 3 x audio jacks (Line In/ Line Out/ Microphone) I/O Controller i TE IT8728 chip H/W Monitoring System voltage detection CPU/ System temperature detection CPU/ System/ Power fan speed detection CPU overheating warning CPU/ System/ Power fan fail warning CPU/ System fan speed control * Whether the CPU/system fan speed control function is supported will depend on the CPU/system cooler you install. BIOS 2 x 32 Mbit flash Use of licensed AMI EFI BIOS Support for Dual BIOS™ Pn P 1.0a, DMI 2.0, SM BIOS 2.6, ACPI 2.0a Bundle Software Norton Internet Security (OEM version) Operating System Support for Microsoft Windows 8/7/ Vista/XP Form Factor ATX Form Factor; 30.5cm x 19.0cm