Feature 1X99 LGA 2011 3 Motherboard: This desktop motherboard supports for E5 V3/V4 series processors, such as E5 2678 V3/E5 2629 V3/E5 2649 V3/E5 2676 V3/E5 2673 V3/E5 2666 V3. 232Gbps Transmission: This computer motherboard with M.2 interface supports NVME M.2 and SATA M.2 ports. PCIe Gen 3.0 standard, data transmission speed up to 32Gbps. 38 DDR4 DIMM: This PC motherboard supports 4th Gen DDR4 DIMM, 8 DDR4 memory slots (3000/2666/2400/2133MHz), 16GB for single memory, and a maximum of 128GB. 4Extension Slot: This LGA 2011 motherboard has 2 x PCIE X16, 2 x PCIE X1, 2 x USB3.0 connector, 2 x USB2.0 pin, 6 x SATA3.0 interface, 2 x NVME M.2 interface, 1 x RJ45 network interface(Gigabit), 4 x USB2.0 interface and 4 x USB3.0 interface. 512 Phase Power Supply: This X99 motherboard adopts 24pin+8pin+8pin power interface and 12 phase power supply. Designed with 3 heat sinks for fast heat dissipation.Item Type: Desktop MotherboardMaterial: Printed Circuit BoardChipset: X99Motherboard Framework: ATXMotherboard Size: Approx. 295 x 280mm / 11.6 x 11.0in ( Manual Measurement, Slight Error May Exist )CPU Slot Type: Supports LGA 2011 3Netword Card Chip: 1000Mbit Netword Card ChipGraphics Card Slot: 2 x PCI E 16X Gen 3.0Video Interface: Requires PCI E Discrete Graphics CardSupported Memory Type: 8 x DDR4 DIMMMaximum Memory Capacity: 128GB (16GB For A Single)SATA Interface: SATA3.0 x 8Audio: Integrated ALC Six Sound Channel ChipUSB Interface:USB3.0 x 4, USB2.0 x 4, Front USB2.0 Pin x 1, Front USB3.0 Pin x 1M.2 Interface: NVME PCIE Gen3 X4, NVME PCIE Gen3 X4/NGFFMouse And Keyboard: PS/2 Mouse Keyboard InterfaceExpansion Interface: PCI E 1X Expansion Slot x 2Power Supply: 24 Pin x 1, 8 Pin x 2Battery Type: CR2032 Button Battery (Inbuilt)Battery Capacity: 240mAhThe Motherboard Is Fixed In The Main Box, And Then Connected According To The Corresponding Marked Connector. No Power Problem: When The Device Cannot Be Turned On And The Power Indicator Is Off, Please Make Sure That The Power Supply Is Connected And Works Normally. If Your Cpu Fan Is Installed Correctly, You Can Also Tell If The Power Supply Is Working Properly By Determining If The Fan Is Working Properly.1. Check The Power Supply Of The Power AdapterA. Check Whether The Power Cable Is Connected And The Socket Is Properly Plugged, As Shown In The Following Figure. If The Extension Cable Has A Main Power Switch, Make Sure It Is On.B. Replacing The Extension Cord And Socket Can Help Solve The Problem.Check Whether The Mainboard Power Supply Is Correctly Connected:1. Ensure That The Power Cable Of The Power Adapter Is Correctly Inserted Into The Atx Power Port. The Motherboard May Contain Both 24pin Eatxpwr And 8pin Eatx12v, Make Sure That Both 8pin Eatx12v And 24pin Eatxpwr Are Connected To The Power Adapter. The Location And Number Of Power Ports May Vary From Model To Model, Some Motherboards May Contain 24pin Eatxpwr And 4pin Eatx12v, Both Ports Should Be Linked To The Power Adapter Not On: When You Press The Power Button To Start The Computer, The Fan And Q Led Indicator /Qcode Do Not Respond. Please Follow The Instructions Below To Troubleshoot The Problem:1. Verify That The Power Adapter Is Correctly Plugged Into The Atx Power Port By Following The Steps Above To Troubleshoot The Power Supply Problems On The Mainboard.2. Keep The Cpu, Cpu Cooling Fan And A Separate Ram Video Memory On The Motherboard. Remove All Usb Devices And External Cards From The Motherboard, Including Mouse, Keyboard, Card Reader, Flash Drive, External Hard Disk, External Pcie Card, Etc. Remove All Cables From The Mainboard, Including The Network Cable, Audio Cable, And Display Cable (Hd Multimedia Interface/Vga/Dvi/Dp). Then Try Turning The Computer On. If It Works, Maybe The Problem Is The External Device Removed. Reconnect The External Devices One By One Until You Determine Which External Device Or Wire Is Causing The Problem.3. Clear The Cmos. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Desktop Motherboard1 x Baffle1 x SATA Cable