Feature 1With Cooling Fan: HM55 computer motherboard kit, HM55 chipset, comes with for i3 530CPU 4G DDR3 memory, and cooling fan. 2Rich Interface: The expansion interface has VGAx1, HD Multimedia Interfacex1, PCIE 1X expansion slotx1, M.2 high speed interface. 3Support 4GB Memory: M.2 support 32GB/s data transfer speed, support 4GB memory, 240mAh battery capacity. 4Multi Phase Power Supply: The power supply is stable and precise, evenly distributed, and the thermal load of various power supply chipsets improves CPU performance, multi phase power supply, more stable and durable. 5PCB Board: Desktop motherboard using PCB board, long time use without deformation, so as to ensure long term stability.Item Type:HM55 Motherboard SetMaterial: PCBChipset: HM55Motherboard Architecture: M ATXMotherboard Size: Approx. 188 x 168 x 5mm / 7.4 x 6.6 x 0.2inCPU: for i3 530CPUNIC: 100M NICGraphics Card Slot: PCIE 16Xx1Support Memory Type: DDR3x2Memory: 4GBSATA Interface: SATA2.0x3USB Interface: USB2.0x6, Front USB3.0 Pin x1, Front USB2.0 Pin x1Sound Card: ALC662 5.1 ChannelPower Connector: 24pin x 1, 4pin x 1Expansion Interface: VGAx1, HD Multimedia Interfacex1, PCIE 1X Expansion Slotx1, M.2 High Speed InterfaceBattery Type: CR2032L Button Cell (Ship with Inbuilt Battery)Battery Capacity: 240mAhFix the motherboard in the main case, and then connect the connectors according to the corresponding mark. No power on problem: When the device won't power on and the power indicator doesn't light up, make sure the power supply is connected and working properly. If your CPU fan is installed correctly, you can also determine whether the power supply is working properly by judging whether the fan can work properly.1. Confirm the power supply of the power adapter a. Please check the connection of the power cord and whether the socket is plugged in as shown in the figure below. If there is a main power switch on the extension cord, please make sure it is on state. b. Replacing the extension cord and socket will help solve the problem. Verify that the motherboard power supply is properly connected: 1. Make sure the poweradapter's power cord is properly plugged into the ATX power connector. The motherboard may contain 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 powerconnectors may vary by model, some motherboards may contain 24pin EATXPWR and 4pin EATX12V, both connectors should be linked to the power adapter Does not power on: When the fan and Q LED indicator/Q CODE do not respond when the power button is pressed to start the computer, please follow the instructions below to troubleshoot the problem1. Follow the troubleshooting steps above to confirm that the power adapter is properly plugged into the ATX power connector for the motherboard's power supply 2. Keep the CPU, CPU cooler fan and a separate RAM display on the motherboard. Remove all USB devices and external cards from the motherboard, including mice, keyboards, card readers, flash drives, external hard drives and external PCIE cards, etc. Remove all cables from the motherboard, including network cables, audio cables and display cables (HD Multimedia Interface/VGA/DVI/DP). Then try to turn on the computer, if it turns on properly maybe the problem comes from the external devices removed. Reconnect the external devices one by one until you determine which external device or cable is causing the problem 3. Try to 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 MotherboardSet (Ship with InbuiltBattery)1 x Bezel1 xSATACable