1. Core values: 1. Support 4G discrete graphics card mining, RX570 4G computing power 18HM; 2. Support 3060 discrete graphics card, computing power 48MH.2. Installation instructions 1. E5-26xx/46xx V1 and V2 CPUs (not included) must be used, and two CPUs of the same model must be used on a motherboard. 2. Using server memory can reduce the cost of memory.3. Display interface: Fix the third slot display (C slot) on the right under DOS; if you encounter the phenomenon that the display cannot. Just unplug the decoy head on the graphics card.4. Motherboard specification: 595 x 194mm, PCIE spacing is 60mm.5. Mainboard power supply access method: 1, 2, 3, 6 ports output power to the graphics card, mainboard 4, 5, 7, 8, 9 ports are power input; A, B, C, D, E 5 graphics cards directly power Power supply (as shown below).Important Note : CR2032 battery is not included , CR2032 battery must be installed before use, Thank you!The motherboard must use 4 violent fans to dissipate heat, otherwise the high temperature of the graphics card will reduce the life span and increase instability. The power supply is recommended to be placed on the upper side of the fan, which can reduce the length of the chassis; and the power supply line can be directly plugged into the motherboard without switching.Pay attention to the direction when installing the CPU heat sink. Reverse installation will cause the CPU to become hot.CPU is recommended:for Xeon Processor E5-2603for Xeon Processor E5-4603for Xeon Processor E5-2609for Xeon Processor E5-2603 V2for Xeon Processor E5-4603 V2for Xeon Processor E5-2609 V2for Xeon Processor E5-2620for Xeon Processor E5-2620 V2for Xeon Processor E5-4607 V2for Xeon Processor E5-2618L V23. Operation guide for installing the heat sink Warm reminder: different batches of products will have different appearances, which will not affect the useNote: Random color, don't accept the specified color.size: 59 x 19cmMaterial: PCBcolour: blackPackage Contents:1 x Motherboard1 x SATA Cable(Random colors and appearances)1 x Switch Cable(Random colors)1 x Thermal Pad(Random colors and appearances)Only the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.