Introduction
This manual provides detailed instructions for the installation, operation, maintenance, and troubleshooting of your SOYO X99 Gaming Motherboard Kit. This kit is designed for high-performance computing, supporting Intel Xeon E5 V3/V4 series processors, DDR4 memory, and high-speed M.2 NVME storage. Please read this manual thoroughly before proceeding with installation to ensure proper setup and optimal performance.

Setup Guide
Before you begin, ensure you have a clean, static-free workspace. Handle components by their edges to avoid touching sensitive contacts.
1. CPU Installation
The motherboard supports Intel LGA 2011-3 socket processors, such as the Xeon E5 2640 V4 included in some kits. Carefully open the CPU socket retention mechanism, align the CPU with the triangular mark on the socket, and gently place it in. Close the retention mechanism to secure the CPU.

2. RAM (Memory) Installation
The motherboard features four DDR4 DIMM slots, supporting up to 128GB of memory in dual-channel configuration. Note that server memory (REG ECC) and desktop memory cannot be mixed. Ensure you use compatible memory types.
- Open the clips on both ends of the DIMM slot.
- Align the memory module with the slot, 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.
- Important: When installing memory, always insert modules into the black memory slots first. Failure to do so may prevent the computer from starting.

3. Storage Device Installation
The motherboard provides multiple storage options:
- M.2 NVME/NGFF SSD: There are two M.2 slots. One supports both NGFF (SATA) and NVME SSDs via a jumper switch, while the other is NVME-only. Insert the M.2 SSD into the slot and secure it with the provided screw.
- SATA 3.0 Devices: Connect SATA hard drives or SSDs to the four SATA 3.0 (6 Gb/s) ports using SATA data cables.

4. Power Connections
Connect your power supply unit (PSU) to the motherboard:
- Connect the 24-pin ATX main power connector to the corresponding socket on the motherboard.
- Connect the 8-pin ATX12V CPU power connector to the socket near the CPU.
- Note: A power supply of at least 500W is recommended for stable operation of this platform.

5. Expansion Card Installation
The motherboard includes:
- 1x PCIe x16 slot for graphics cards.
- 1x PCIe x1 slot for other expansion cards.
- 1x PCIe WIFI slot for a wireless module.
Insert your expansion cards firmly into the appropriate slots and secure them with screws to your PC case.
6. I/O Connections
Connect peripherals to the rear I/O panel:
- USB Ports: 2x USB 2.0, 4x USB 3.0.
- PS/2 Port: For legacy keyboards or mice.
- RJ45 LAN Port: For network connectivity.
- Audio Ports: Line Out, Line In, Mic In for audio devices.
Internal headers are available for front panel USB 2.0, USB 3.0, and audio connections. Refer to the motherboard diagram for header locations.

7. TPM 2.0 Interface
The motherboard includes a TPM 2.0 header (MSLPC-14PIN) for enhanced security features. If you require TPM functionality, install a compatible TPM module onto this header.

Operating Instructions
Once all components are installed and connected, you can power on your system. The motherboard supports Windows 7, 10, and 11 operating systems. Install your preferred OS and necessary drivers for optimal performance.
The kit may include a used CPU and RAM. These components are fully tested before delivery to ensure perfect functionality. Minor cosmetic marks on used components are normal and do not affect performance.
Maintenance
Cleaning
Regularly clean your computer's interior to prevent dust buildup, which can lead to overheating. Use compressed air to remove dust from fans, heatsinks, and other components. Ensure the system is powered off and unplugged before cleaning.
BIOS Updates
Periodically check the manufacturer's website for BIOS updates. BIOS updates can improve system stability, add support for new hardware, or fix bugs. Follow the manufacturer's instructions carefully when updating the BIOS to avoid system damage.
Troubleshooting
- System Fails to Start After RAM Installation: Ensure memory modules are correctly seated, especially in the black primary slots first. Verify that you are not mixing server (REG ECC) and desktop memory.
- Inaccurate Temperature Readings: The motherboard may not have a dedicated temperature control chip, leading to virtual temperature readings (e.g., 110°-120°C) in software. Use a physical thermometer to measure actual component temperatures; normal operating temperature should not exceed 50°C.
- System Instability/Random Shutdowns: Verify your power supply unit (PSU) meets the minimum requirement of 500W. Insufficient power can cause instability.
- Missing CMOS Battery: The CMOS battery is removed before shipping due to customs regulations. You will need to install a CR2032 coin cell battery to retain BIOS settings.
- Minor Design Variations: Due to different production batches, your motherboard might have slight design variations (e.g., memory slot color, SATA port position). These variations are normal and do not affect functionality.
Specifications

| Feature | Detail |
|---|---|
| Brand Name | SOYO |
| Model | SY-X99 BSF C612 |
| Form Factor | Micro-ATX (190mm x 220mm) |
| Chipset Manufacturer | Intel |
| Chipset | Intel C612 |
| Socket Type | LGA 2011-3 |
| Processor Compatibility | Intel Xeon E5 V3/V4 Series (e.g., E5-2640 V4) |
| Number Of Memory Slots | 4 (DDR4 DIMM) |
| Support Memory Type | DDR4 2133/2400/2666 MHz (Dual-Channel) |
| Maximum RAM Capacity | 128 GB (32GB per DIMM) |
| Storage Interface Type | SATA 3.0, M.2 (NVMe), M.2 (SATA) |
| Number of M.2 | 2 (1x NGFF/NVME, 1x NVME Only) |
| Number of SATA Ports | 4 |
| PCI - E standards | PCI-E 3.0 |
| Number of PCIe x 16 | 1 |
| Number of PCIe x 1 | 1 (plus 1x PCIe WIFI slot) |
| Back I/O Ports | 2x USB 2.0, 4x USB 3.0, 1x PS/2, 1x RJ45, Audio (Line Out, Line In, Mic In) |
| Onboard LAN | 1x RJ45 (Realtek Gigabit LAN) |
| Onboard Connectors & Header | 24-pin Main Power, 8-pin ATX12V, USB 2.0 Header, USB 3.0 Header, F_AUDIO, TPM Header, FPANEL, SPEAK, BAT, Diagnostic Card Headers |
| Audio | Realtek HD Audio Codec |
| Operating Temperature | -10°C to 60°C |
| Storage Temperature | -25°C to 70°C |
| Humidity | 10-90% (Non-Condensing) |
| Operating System Support | Windows 7/10/11 |
| Power Consumption (Idle) | 50-70W |
| Power Consumption (Full Load) | 180-260W |
User Tips
- Memory Installation Order: Always populate the black DDR4 memory slots first to ensure proper system boot-up.
- Power Supply: For optimal stability and performance, especially under load, ensure your power supply unit (PSU) is rated at 500W or higher.
- CMOS Battery: Remember to install a CR2032 coin cell battery for the CMOS to save BIOS settings, as it is typically removed for shipping.
- Temperature Monitoring: Be aware that software-reported CPU/motherboard temperatures might be virtual. For accurate readings, use a physical thermometer.
Warranty and Support
For warranty claims, technical support, or service inquiries, please contact the seller or manufacturer directly. Keep your proof of purchase for any warranty-related issues.





