MACHINIST X99 MR9A PRO MAX Motherboard Intel LGA 2011-V3 DDR4 ATX Server | Quad-Channel 128GB ECC/Non-ECC Memory Support

• Intel LGA 2011-3 socket: The Intel xeon motherboard supports Intel Core i7 5th/6th generation processors and XEON E5 V3/V4 series processors. (Eg. Core i7-5960X, Core i7-6850K, Xeon E5-2650 V3, Xeon E5-2690 v4)
• 4 channels DDR4: The X99 gaming motherboard has 4 DDR4 memory slots, designed by 4 channels, compatible with ECC and non-ECC memory. The supported effective frequencies are 2133/2400MHz, and the maximum capacity is 128GB
• Dual M.2 slots: This ATX motherboards are equipped with NVME M.2 and SATA M.2 slots. The NVME M.2 slot adopts PEIe channel, and the maximum transmission speed is 32Gb/s
• 5 PCIe graphics card slots: Equipped with 3 PCIe X16 slots (two of which are protected by a steel case), 1 PCIe X4 slot and 1 PCIe X1 slot. Using the PCIe 3.0 protocol, the effective transfer rate can reach up to 15.754 GB/s
• More functions: Assembled with aluminum alloy VRM cooling fan, one-key "boot" and "restart" buttons, buzzer and diagnostic card, etc. Including 3*USB 3.0(1*front), 7*USB 2.0(1*front), 2*PS/2, 4*SATA 3.0, 2*SATA 2.0. Size: 215mm x 303mm
• Tips: The package includes: 1*CPU fan bracket, 1*SATA cable, 1*I/O baffle, 1*motherboard. Tip 1: The CR2032 battery on the motherboard has been removed. It is not included in the package. Please purchase it yourself. Tip 2: The user manual is not included in the package. You can download the manual file on the product details page. If you don't know where to download the driver, it is recommended to use the win 10 system, which can help you solve all driver problems
• Tips: Before purchasing this ddr4 motherboard, make sure you can install it yourself. After the motherboard is installed normally, if there is no display, no boot, no picture, no network card, no sound card, etc. It is recommended that customers restore factory settings, reset CMOS, or use an eraser to erase the metal pins on the memory, CPU, or graphics card
• Common problem: "FF" code appears on the diagnostic card, which may be caused by incompatible CPU, foreign objects on CPU pins or improper power connection. The metal fingers of the CPU can be wiped with an eraser to ensure cleanliness. If the codes "b7", "b9", "53" and "b0" appear, this is a problem that the motherboard does not detect the memory. You can remove and insert the memory several times or wipe the metal fingers of the memory with an eraser to solve it
• Note: If you need the motherboard to enter the BIOS, please press the "Del" key continuously after pressing the startup key. Please do not wait until the startup LOGO screen appears on the computer screen before operating, because it is already too late

• Install CPU and RAM — Carefully install your compatible LGA 2011-3 CPU into the socket, ensuring correct orientation. Secure the retention arm. Then, install DDR4 ECC or Non-ECC RAM modules into the four slots, following the quad-channel configuration guidelines in the manual for optimal performance.
• Connect Storage and GPU — Install your NVMe SSD into the PCIe M.2 slot and SATA M.2 SSD or HDD into the SATA M.2 slot. Connect SATA 3.0 drives to the motherboard's SATA ports. Install your graphics card(s) into the primary PCIe x16 slots.
• Connect Power and Peripherals — Connect the 24-pin ATX and 8-pin CPU power cables from your PSU to the motherboard. Connect front panel headers (power switch, USB, audio) and rear I/O peripherals (keyboard, mouse, monitor, Ethernet). Ensure all connections are secure.
• Initial Boot and BIOS Setup — Power on the system. Immediately press the 'Del' key repeatedly to enter the BIOS. Verify CPU, RAM, and storage detection. Configure boot order, fan curves, and other settings as needed. Install your operating system (Windows 10 recommended for driver ease).

Typical situations where MACHINIST X99 MR9A PRO MAX Motherboard Intel LGA 2011-V3 DDR4 ATX Server | Quad-Channel 128GB ECC/Non-ECC Memory Support helps — illustrative scenarios, not customer reviews.