SOYO B75M Motherboard User Manual

1. Product Overview

The SOYO B75M Motherboard is designed to support Intel 2nd and 3rd Generation Core i-Series and Xeon E3 Series CPUs with an LGA 1155 socket. Featuring the Intel B75 chipset, it offers dual-channel DDR3 memory support, an M.2 NVMe/SATA slot, and essential connectivity for a versatile computing experience, suitable for both household and office use, including gaming.

2. Specifications

Below are the detailed specifications for the SOYO B75M Motherboard:

3. Setup Guide

Follow these steps to properly install your SOYO B75M Motherboard and its components.

3.1. Pre-Installation Checklist

• Ensure your power supply is compatible with 24-pin ATX and 4-pin ATX12V connectors.
• Verify your CPU is an Intel LGA 1155 socket type (2nd or 3rd Gen Core i-Series/Xeon E3).
• Confirm your RAM is DDR3, up to 1600MHz, and does not exceed 16GB total capacity (8GB per DIMM).
• Prepare a CR2032 battery (not included) for the CMOS if needed.

3.2. CPU Installation

1. Locate the LGA 1155 CPU socket on the motherboard.
2. Open the CPU socket lever and remove the protective cover.
3. Carefully align your Intel LGA 1155 CPU with the socket, ensuring the notches on the CPU match the keys on the socket.
4. Gently place the CPU into the socket. Do not force it.
5. Close the socket lever to secure the CPU.
6. Apply thermal paste to the CPU and install the CPU cooler. Connect the CPU cooler fan cable to the CFAN (4-pin CPU_FAN) header.

3.3. Memory (RAM) Installation

1. Locate the two DDR3 DIMM slots.
2. Open the clips on both ends of the memory slot.
3. Align the RAM module with the slot, ensuring the notch on the module matches the key in the slot.
4. Press down firmly on both ends of the RAM module until the clips snap into place. For dual-channel operation, install modules in both slots.

3.4. Storage Device Installation

1. M.2 SSD: Locate the M.2 slot (NVME/NGFF). Insert your M.2 SSD at an angle and then gently push it down, securing it with the provided screw. Ensure the jumper setting for the M.2 slot is correctly configured for NVMe or SATA protocol as per your SSD type.
2. SATA Drives: Connect your SATA 2.0 (3 Gb/s) hard drives or SSDs to the 3*SATA2.0 ports using SATA data cables.

3.5. Power Connections

1. Connect the 24-pin ATX main power cable from your power supply to the 24PIN-DC connector on the motherboard.
2. Connect the 4-pin ATX12V power cable from your power supply to the 4PIN DC connector near the CPU socket.

3.6. Rear I/O Connections

Connect your peripherals to the rear I/O panel:

• USB Devices: Use the 2*USB3.0 and 2*USB2.0 ports for keyboards, mice, and other USB devices.
• Display: Connect your monitor to either the HDMI or VGA port.
• Network: Connect an Ethernet cable to the LAN (RJ45) port for wired network access.
• Audio: Connect speakers, headphones, or microphones to the AUDIO jacks (Line Out, Line In, Mic In).

3.7. Internal Header Connections

Connect your case's front panel cables to the corresponding headers:

• Front Panel: Connect the power switch, reset switch, power LED, and HDD LED cables to the F_PANEL header according to your case manual.
• Front USB: Connect your case's front USB 2.0 ports to the 1*USB2.0 header and front USB 3.0 ports to the 1*USB3.0 header.
• Front Audio: Connect your case's front audio jacks to the JAUDIO (F_AUDIO) header.
• System Fan: Connect additional case fans to the SFAN (3-pin SYS_FAN) header.

3.8. Expansion Card Installation

If installing a graphics card or other PCIe expansion card:

1. Locate the PCIEX8 slot.
2. Insert the expansion card firmly into the slot until it clicks into place.
3. Secure the card with a screw to your computer case.

4. Operating Instructions

4.1. Initial Boot-Up

1. After all components are installed and connected, ensure your power supply is switched on.
2. Press the power button on your computer case.
3. The system should power on, and you should see a display on your monitor.

4.2. BIOS/UEFI Access

To enter the BIOS/UEFI setup utility, press the DEL or F2 key repeatedly during the initial boot-up sequence (before the operating system starts loading). From the BIOS/UEFI, you can configure system settings, boot order, and monitor hardware status.

4.3. M.2 Jumper Configuration

The M.2 slot supports both NVMe and SATA protocols. The protocol selection is typically done via a jumper located near the M.2 slot. Refer to the motherboard diagram and your specific M.2 SSD type to ensure the jumper is set correctly for optimal performance.

5. Maintenance

5.1. Clearing CMOS (JBAT Jumper)

If you encounter system instability or need to reset BIOS settings to default, you can clear the CMOS:

1. Power off your computer and unplug the power cord.
2. Locate the JBAT jumper on the motherboard.
3. Move the jumper cap from its default position (e.g., pins 1-2) to the clear position (e.g., pins 2-3) for 5-10 seconds.
4. Return the jumper cap to its default position.
5. Plug in the power cord and power on the computer.

5.2. CR2032 Battery Replacement

The motherboard uses a CR2032 coin cell battery to retain BIOS settings and the system clock when the computer is off. If your system loses time or BIOS settings, the battery may need replacement. (Note: The package does not include CR2032 batteries).

1. Power off your computer and unplug the power cord.
2. Locate the CR2032 battery holder on the motherboard.
3. Gently pry out the old battery.
4. Insert a new CR2032 battery with the positive (+) side facing up.

5.3. General Cleaning

Regularly clean your computer's interior to prevent dust buildup, which can cause overheating and performance issues. Use compressed air to remove dust from fans, heatsinks, and other components. Ensure the system is powered off and unplugged before cleaning.

6. Troubleshooting

6.1. No Power / No Boot

• Check all power connections: 24-pin ATX, 4-pin ATX12V, and power supply switch.
• Ensure the front panel power switch cable is correctly connected to the F_PANEL header.
• Try clearing the CMOS using the JBAT jumper.
• Test with minimal components (CPU, one RAM stick, power supply) to isolate the issue.

6.2. No Display

• Verify your monitor is connected to the correct display output (HDMI or VGA) on the motherboard or discrete graphics card.
• Ensure RAM modules are properly seated in their slots.
• If using a discrete graphics card, ensure it is fully seated in the PCIe slot and has adequate power connected.
• Try using a different display cable or monitor.

6.3. System Instability / Random Restarts

• Check CPU and system fan connections to ensure proper cooling.
• Verify RAM compatibility and try testing with one RAM stick at a time.
• Ensure all power cables are securely connected.
• Update BIOS to the latest version if available (refer to manufacturer's website).

6.4. Diagnostic Card Headers

The motherboard includes 2x 5-pin diagnostic card headers (JLPC). If you have a compatible diagnostic card, you can connect it to these headers to receive POST codes, which can help identify specific boot-up issues.

7. User Tips

• CPU Compatibility: Always double-check that your Intel LGA 1155 CPU is a 2nd or 3rd generation model for full compatibility.
• RAM Installation: For optimal performance, ensure both DDR3 DIMM slots are populated with identical RAM modules to enable dual-channel memory mode.
• M.2 Jumper: Remember to set the M.2 jumper correctly for either NVMe or SATA mode based on your installed SSD to avoid detection issues.
• Cable Management: Proper cable management improves airflow and makes future maintenance easier.
• BIOS Updates: Periodically check the manufacturer's website for BIOS updates, which can improve stability and add support for new hardware.

8. Warranty and Support

The SOYO B75M Motherboard is manufactured under strict quality control and holds CE, ROHS, and FCC certifications. For warranty claims, technical support, or service inquiries, please contact your point of purchase or the official SOYO support channels. Keep your purchase receipt as proof of purchase.