Processor / System Bus 1 x Socket 1156 Quad Core Intel Xeon 3400 series Server Processor Quad Core Intel Core i7-800 series Desktop Processor? Quad Core Intel Core i5-700 series Desktop Processor? Dual Core Clarkdale CPU design Ready ? * The Core i7/i5 series desktop processors support DDR3 1333/1066 unbuffered DIMM with non-ECC only. Core Logic Intel® 3420 PCH ASUS Features ASWM2.0 Memory Total Slots: 6 (Lynnfied)/ 4 (Clarkdale) (2 Channel) Capacity: Maximum up to 32GB (RDIMM) (Lynnfield)/ Maximum up to 16GB (UDIMM) (Lynnfield/Clarkdale) Memory Type: DDR3 1066/1333 Reg DIMM/ Unbuffered DIMM with ECC Memory Size: 1GB 2GB 4GB (UDIMM)/ 1GB, 2GB, 4GB, 8GB* (RDIMM) Expansion Slots Total Slots: 2 Slot Type: 1 * PCI-E 2.0 x16 slot ( x 8 link) (Full-Height/HL) 1 * PCI-E 2.0 x8 slot ( x 8 link) (Low profile/HL ) Addditional Slot 1: 1* PIKE Slot for Stroage Enhancement Storage SATA Controller: Intel® 3420: 2 SATA2 300MB/s ports Intel Matrix Storage (for Windows only) (Support software RAID 0, 1, 10 & 5) LSI® MegaRAID (for Linux/Windows) (Support software RAID 0, 1, 10) HDD Bays 4 x Hot-swap 3.5 Networking LAN: 2 * Intel 82574L + 1 * Mgmt LAN Graphic VGA: Aspeed AST2050 8MB Auxiliary Storage 1 x Slim-type Optical Device Bay (Options: No Device / DVD-RW ) On Board I/O 1 x External Serial Port 3 x RJ-45 ports (One for ASMB4-iKVM) 4 x USB2.0 ports (Front * 2, Rear * 2) 1 x VGA port 1 x PS/2 Keyboard port 1 x PS/2 Mouse port OS Support Windows® Server 2008 Enterprise 32/64-bit Windows® Server 2003 R2 Enterprise (32/64 bit) RedHat® Enterprise Linux AS5.0 (32/64 bit) SuSE® Linux Enterprise Server 10 (32/64 bit) (Subject to change without any notice) Anti-virus Software Optional Anti-Virus CD Pack Management Solution Software: ASWM2.0 Out of Band Remote Management: Optional ASMB4-iKVM for KVM-over-IP support Safety US/Canada (UL1950-CSA950) Europe (CE, EN55022 compliance to EU Directive 89/366/EEC) Europe (TUV) EMI US (FCC, CFR47 Part 15, Class A) Europe (CE, EN55022 & EN55024) Australia (C-TICK) Taiwan (BSMI) China (CCC) Dimensions without Packing 615 mm (H) x 444 mm (W) x 43.4 mm (D) Net Weight Kg (CPU, DRAM and HDD not included) 15 Kg Power Supply 350W Single Power Supply 80 Plus Environment Operation temperature: 10? ~ 35? / Non operation temperature: -40? ~ 70? Non operation humidity: 20% ~ 90% (Non condensing) Accessories 1 x Users Guide 1 x ASUS ASWM2.0 Users Guide 1 x Support CD 1 x Bag of Screws 1 x AC Power Cable Optional Items ASMB4-iKVM Remote Management Card CPU Heatsink Semi-Ball Bearing Rail Kit Slim-type Optical Device CA eTrust Anti-virus Software CD