1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your YiHESZ X99 Dual CPU Motherboard. Designed for high-performance computing, this E-ATX motherboard supports dual Intel Xeon E5 processors (LGA 2011-3 socket) and features extensive connectivity options, including 8 DDR4 DIMM slots, dual M.2 NVMe interfaces, and multiple PCI-E slots. Please read this manual thoroughly before proceeding with installation.
2. Specifications
| Feature | Description |
|---|---|
| Chipset | Intel X99 |
| CPU Socket | Dual LGA 2011-3 |
| Processor Compatibility | Intel Xeon E Series (Supports 2 CPUs) |
| Memory Type | DDR4 3200/2666/2400/2133MHz (ECC supported) |
| Memory Slots | 8 x DDR4 DIMM (Four memory channels) |
| Maximum RAM Capacity | 128 GB |
| PCI-E Slots | 2 x PCI-E X16, 2 x PCI-E X1 (PCI-E 3.0 standard) |
| Storage Interface | 6 x SATA 3.0, 2 x NVMe M.2, 2 x M.2 (SATA) |
| Onboard LAN | 1 x RJ45 (RTL8111H Gigabit NICs) |
| Audio | 6-channel sound chip |
| Back I/O Ports | PS/2 Keyboard/Mouse, 4 x USB 2.0, 4 x USB 3.0, 1 x RJ45, Audio Interface |
| Form Factor | E-ATX |
| Dimensions | 295mm x 281mm (11.61" x 11.06") |
| RAID Supported | Yes |
| Usage Scenario | Gaming, Household, Office, Design, Workstation, Server, Mining, Video Rendering |
3. Package Contents
The contents of your package depend on the option purchased:
- Motherboard Only: 1 x YiHESZ X99 Motherboard
- Motherboard + RAM: 1 x YiHESZ X99 Motherboard, 4 x 16GB DDR4 2400 ECC RAM (used)
- Motherboard + CPU: 1 x YiHESZ X99 Motherboard, 2 x Intel Xeon E5 2686V4 CPUs (used)
- Motherboard + CPU + RAM: 1 x YiHESZ X99 Motherboard (new), 2 x Intel Xeon E5 2686V4 CPUs (used), 4 x 16GB DDR4 2400 ECC RAM (used)
4. Setup Instructions
Before installation, ensure your system is powered off and unplugged. Handle the motherboard by its edges to avoid static discharge.
4.1. Component Installation
- CPU Installation:
- Locate the two LGA 2011-3 CPU sockets (labeled 'LGA2011-3 (main) #1' and 'LGA2011-3 (from) #2' in Figure 4).
- Open the CPU retention mechanism.
- Carefully align the Intel Xeon E5 processors with the sockets, ensuring the gold triangle on the CPU matches the indicator on the socket.
- Gently place the CPUs into the sockets and close the retention mechanism.
- Apply thermal paste and install compatible CPU coolers.
- RAM Installation:
- Identify the 8 DDR4 DIMM slots (labeled 'DDR4*4 #1' and 'DDR4*4 #2' in Figure 4).
- Open the clips on both ends of the DIMM slots.
- Align the DDR4 memory modules with the slots, ensuring the notch on the module matches the key in the slot.
- Press down firmly on both ends of the memory module until the clips snap into place.
- M.2 NVMe SSD Installation:
- Locate the two M.2 NVMe slots (labeled 'M.2 NVME' in Figure 4).
- Insert the M.2 SSD into the slot at an angle.
- Gently push down the SSD and secure it with the provided screw.
- PCI-E Card Installation:
- Identify the PCI-E X16 and PCI-E X1 slots.
- Remove the corresponding expansion slot cover from your PC case.
- Align your PCI-E card with the slot and press firmly until it is seated correctly.
- Secure the card with a screw to the PC case.
- SATA Device Connection:
- Connect your SATA storage devices (HDDs, SSDs) to the SATA 3.0 interfaces (labeled 'SATA3.0' in Figure 4) using SATA data cables.
- Ensure power cables from your power supply are connected to these devices.
4.2. Power and Peripheral Connections
- Power Supply:
- Connect the 24-pin ATX power connector from your power supply to the main power socket on the motherboard.
- Connect the 8-pin CPU power connectors to 'CPU POWER #1' and 'CPU POWER #2' (Figure 4). Both are required for dual CPU operation.
- Front Panel Connectors:
- Connect the power switch, reset switch, HDD LED, and power LED cables from your PC case to the 'F_PANEL' header (Figure 4). Refer to your case manual for specific pin assignments.
- USB Headers:
- Connect front panel USB 2.0 and USB 3.0 ports to the corresponding headers on the motherboard (Figure 4).
- Audio Header:
- Connect your case's front panel audio cable to the 'Audio Header' (Figure 4).
- Rear I/O Ports:
- Connect your keyboard and mouse to the PS/2 ports.
- Connect USB devices to the USB 2.0 and USB 3.0 ports.
- Connect your network cable to the LAN port.
- Connect audio devices (speakers, headphones, microphone) to the audio jacks.
5. Operating Instructions
5.1. First Boot
After all components are installed and connected, ensure all power cables are securely plugged in. Power on your system. The motherboard will perform a Power-On Self-Test (POST). During POST, you may see a 'State LED' (Figure 4) which can display diagnostic codes. Refer to the troubleshooting section if the system does not boot successfully.
5.2. BIOS/UEFI Setup
To enter the BIOS/UEFI setup utility, press the 'DEL' or 'F2' key repeatedly during the initial boot sequence. In the BIOS, you can configure various system settings, including boot order, CPU settings, memory timings, and fan speeds. Save changes before exiting.
5.3. Operating System Installation
Insert your operating system installation media (USB drive or DVD) and set the boot priority in the BIOS/UEFI to boot from the installation media. Follow the on-screen instructions to install your preferred operating system.
6. Maintenance
6.1. Cleaning
Regularly clean your computer's interior to prevent dust buildup, which can lead to overheating and component failure. Use compressed air to remove dust from fans, heatsinks, and other components. Ensure the system is powered off and unplugged before cleaning.
6.2. BIOS/Firmware Updates
Periodically check the manufacturer's website for updated BIOS/firmware versions. Updating the BIOS can improve system stability, compatibility, and performance. Follow the instructions provided by the manufacturer carefully when performing a BIOS update to avoid damaging the motherboard.
7. Troubleshooting
7.1. Common Issues
- No Power: Ensure all power cables (24-pin ATX, 8-pin CPU) are securely connected to the motherboard and power supply. Check the power supply unit (PSU) switch and wall outlet.
- No Display: Verify that your monitor is connected to the graphics card (if installed) or the integrated graphics output (if applicable) and is powered on. Reseat the graphics card and RAM modules.
- POST Errors / Beep Codes: The 'State LED' on the motherboard (Figure 4) can provide diagnostic codes. Consult the motherboard's specific POST code definitions (often found on the manufacturer's support page) to identify the issue. Common beep codes indicate RAM, CPU, or graphics card problems.
- System Instability / Crashes: This can be caused by overheating, faulty RAM, unstable CPU overclock, or outdated drivers. Check temperatures, run memory diagnostic tools, and ensure all drivers are up to date.
- Storage Device Not Detected: Check SATA/M.2 cable connections and power connections to the drives. Ensure the drives are enabled in the BIOS/UEFI settings.
7.2. User Tips
- RAM Capacity: The motherboard supports a maximum of 128GB of RAM in total across its 8 DIMM slots. This capacity is shared between both CPUs. For optimal performance, ensure RAM modules are installed in a balanced configuration across the four memory channels.
- Documentation: This user manual serves as the primary documentation for your YiHESZ X99 Dual CPU Motherboard. For further technical details or specific BIOS settings, please refer to the manufacturer's official support resources.
- Batch Variations: Note that motherboards produced in different batches may have slight variations in component color or minor aesthetic details. These variations do not affect the functionality or performance of the product.
8. Warranty and Support
Your YiHESZ X99 Dual CPU Motherboard is covered by a manufacturer's warranty. Please retain your proof of purchase for warranty claims. For technical support, warranty inquiries, or service requests, please contact the seller or the manufacturer directly through their official channels. Details regarding specific warranty periods and terms can typically be found on the product listing or the manufacturer's website.