ASUS B150M-C/D620MT Motherboard User Manual

1. Introduction

This manual provides detailed instructions for the installation, operation, and maintenance of your ASUS B150M-C/D620MT motherboard. Please read this manual thoroughly before proceeding with installation to ensure proper setup and to maximize the performance and longevity of your system.

2. Important Notes

• This motherboard may have been previously used. While its appearance is maintained to be relatively new, it does not come in its original retail packaging.
• The CMOS battery (CR2032) will be removed prior to shipping due to international shipping regulations. You will need to install a new battery upon receipt.
• This product listing is for the motherboard only. CPUs and memory modules are not included unless explicitly stated in a specific bundle. Please verify your purchase details carefully.

3. Product Overview

The ASUS B150M-C/D620MT is a Micro-ATX motherboard designed for Intel LGA 1151 processors, featuring the Intel B150 chipset and support for DDR4 memory.

Key Features:

• Chipset: Intel B150
• CPU Socket: LGA 1151
• Memory: 4 x DDR4 DIMM slots, up to 64GB, Dual Channel, 2133 MHz
• Storage: 6 x SATA 3 ports
• Expansion Slots: 2 x PCIe 3.0 x16, 1 x PCIe x1
• Video Output: VGA (D-Sub), DVI-A, HDMI 1.0
• LAN: 1 x RJ45
• USB Support: USB 2.0, USB 3.0, USB 3.1 Gen1
• Form Factor: Micro-ATX

4. Specifications

5. Setup Guide

5.1. Prepare Your Components

Before starting, ensure you have all necessary components: CPU, CPU cooler, DDR4 RAM modules, power supply unit (PSU), storage devices (SATA SSD/HDD), graphics card (if not using integrated graphics), and a compatible PC case (Micro-ATX).

5.2. Install the CPU

1. Locate the LGA 1151 CPU socket on the motherboard.
2. Open the CPU socket lever and lift the load plate.
3. Carefully align the CPU with the socket, ensuring the gold triangle on the CPU matches the triangle on the socket. Do not force the CPU into place.
4. Lower the load plate and secure it with the lever.

5.3. Install the CPU Cooler

Follow the instructions provided with your CPU cooler to install it onto the motherboard. Ensure proper thermal paste application and secure mounting.

5.4. Install Memory Modules

1. Locate the four DDR4 DIMM slots.
2. Open the clips at both ends of the memory slot.
3. Align the notch on the DDR4 memory module with the key in the DIMM slot.
4. Press down firmly on both ends of the memory module until the clips snap into place. For dual-channel operation, install modules in matching colored slots (e.g., A1 and B1).

5.5. Mount the Motherboard

1. Install the I/O shield into the rear opening of your PC case.
2. Install standoffs in your case that align with the Micro-ATX mounting holes on the motherboard.
3. Carefully place the motherboard into the case, aligning the screw holes.
4. Secure the motherboard with screws. Do not overtighten.

5.6. Connect Power Supply

1. Connect the 24-pin ATX power connector from your PSU to the corresponding socket on the motherboard.
2. Connect the 8-pin (or 4-pin) CPU power connector to the socket near the CPU.

5.7. Connect Storage Devices

Connect your SATA 3 storage devices (SSDs/HDDs) to the available SATA ports on the motherboard using SATA data cables. Connect power from your PSU to the storage devices.

5.8. Install Expansion Cards

If you are installing a dedicated graphics card or other PCIe expansion cards, insert them into the appropriate PCIe x16 or PCIe x1 slots and secure them with the case's retention mechanism.

5.9. Connect Front Panel Connectors

Connect the front panel cables from your PC case (Power Button, Reset Button, HDD LED, Power LED, USB ports, Audio jacks) to the corresponding headers on the motherboard. Refer to the motherboard's silkscreen labels for correct orientation.

5.10. Connect Peripherals

Connect your monitor to one of the video output ports (VGA, DVI-A, or HDMI) on the rear I/O panel. Connect your keyboard, mouse, and other USB devices to the available USB ports. Connect your Ethernet cable to the RJ45 LAN port.

6. Operating Instructions

6.1. First Boot

After completing all connections, power on your system. The system should display the BIOS/UEFI splash screen. If not, check all power and component connections.

6.2. BIOS/UEFI Setup

Press the designated key (usually DEL or F2) during startup to enter the BIOS/UEFI setup utility. Here you can configure boot order, system time, fan speeds, and other advanced settings. Save changes before exiting.

6.3. Driver Installation

After installing your operating system, install the necessary drivers for the chipset, LAN, audio, and any other integrated components. These are typically available on the ASUS support website for your motherboard model.

7. Maintenance

7.1. Cleaning

Regularly clean your PC case and motherboard 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.

7.2. BIOS Updates

Periodically check the ASUS support website for BIOS/UEFI updates. Updates can improve system stability, add support for new hardware, or fix bugs. Follow the update instructions carefully to avoid damaging the motherboard.

7.3. CMOS Battery Replacement

If your system consistently loses time or BIOS settings, the CMOS battery may need replacement. Power off the system, unplug it, and carefully replace the CR2032 coin cell battery located on the motherboard.

8. Troubleshooting

8.1. No Power / No POST (Power-On Self-Test)

• Check all power connections (24-pin ATX, 8-pin CPU, GPU power).
• Ensure the CPU is correctly seated and the cooler is properly installed.
• Reseat RAM modules. Try booting with only one RAM stick.
• Clear CMOS by removing the CMOS battery for a few minutes or using the clear CMOS jumper.
• Disconnect all non-essential peripherals and expansion cards.

8.2. Boot Device Not Found

• Check SATA data and power cables for your storage devices.
• Verify boot order in BIOS/UEFI settings.
• Ensure your operating system is correctly installed on the selected boot drive.

8.3. System Instability / Crashes

• Check CPU and GPU temperatures. Ensure adequate cooling.
• Run memory diagnostic tools to check for faulty RAM.
• Ensure all drivers are up to date.
• Verify PSU wattage is sufficient for all components.

9. User Tips

• CMOS Battery: Remember to purchase and install a CR2032 CMOS battery as it is not included due to shipping restrictions. This is essential for maintaining BIOS settings and system time.
• Component Compatibility: Always double-check the compatibility of your CPU, RAM, and other components with the LGA 1151 socket and B150 chipset before installation.
• Static Discharge: Always ground yourself before handling the motherboard and other components to prevent damage from electrostatic discharge.
• Cable Management: Proper cable management improves airflow and makes future maintenance easier.

10. Warranty and Support

For warranty information and technical support, please refer to the official ASUS website or contact your point of purchase. Keep your purchase records for any warranty claims.