1. Introduction
This manual provides essential information for the installation, operation, and maintenance of your Intel BOXDH55TC Motherboard. The Intel Desktop Board DH55TC is designed to support Intel Core i7, i5, and i3 Processors in the LGA1156 package. It features a MicroATX form factor, making it suitable for compact system builds while offering comprehensive expansion capabilities.

Figure 1: Intel BOXDH55TC Motherboard. This image displays the Intel BOXDH55TC motherboard, highlighting the CPU socket, RAM slots, and various expansion ports.
2. Key Features
- Processor Support: LGA1156 socket for Intel Core i7, i5, i3, and Pentium processors, including those with Intel HD Graphics, Intel Turbo Boost Technology, and Intel Hyper-Threading Technology.
- Chipset: Intel H55 Express Chipset.
- Memory: Four 240-pin DDR3 DIMM slots supporting dual-channel DDR3 1333/1066 MHz memory, up to a maximum of 16GB.
- Expansion Slots: One PCI Express 2.0 x16 slot, two PCI Express x1 slots, and one PCI slot.
- Storage: Six SATA 2.0 ports, including two onboard eSATA ports.
- USB Connectivity: Twelve USB 2.0 ports (six on the rear panel, six via internal headers).
- Audio: Integrated 8-Channel (5.1 + 2 independent multi-streaming) audio subsystem with Realtek ALC888S audio codec.
- Network: Intel 82578DC Gigabit Ethernet Controller (10/100/1000 Mbps).
- Video Outputs: VGA, DVI-D, and HDMI display outputs for processors with integrated Intel HD Graphics.
- Legacy Ports: One PS/2 port, one serial port, and one parallel port.
- Form Factor: MicroATX (9.6 x 9.6 inches).
3. Setup and Installation
Before beginning installation, ensure your system is powered off and disconnected from the power source. Handle the motherboard by its edges to avoid static discharge.
3.1. Processor Installation
- Locate the LGA1156 socket on the motherboard.
- Open the CPU socket lever and lift the metal load plate.
- Carefully align the processor with the socket, ensuring the gold triangle on the CPU matches the triangle on the socket. Do not force the processor into the socket.
- Lower the load plate and secure it with the lever.
- Apply thermal paste to the CPU and install the CPU cooler according to its manufacturer's instructions.
3.2. Memory Installation
- Identify the four DDR3 DIMM slots. For dual-channel operation, refer to the motherboard diagram for recommended slot pairing.
- Open the clips at 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.
3.3. Connecting Peripherals
- Power Supply: Connect the 24-pin ATX main power connector and the 4-pin ATX 12V power connector to the motherboard.
- Storage Devices: Connect SATA data cables from your hard drives or SSDs to the SATA 2.0 ports on the motherboard.
- Expansion Cards: Insert PCI Express or PCI cards into the appropriate slots and secure them. Note that the PCI Express x16 slot is for graphics cards.
- Front Panel Connectors: Connect the power switch, reset switch, HDD LED, power LED, and front panel USB/audio connectors to their respective headers on the motherboard. Refer to the motherboard diagram for correct pin assignments.
- External Peripherals: Connect USB devices, monitor(s) to VGA, DVI-D, or HDMI ports, Ethernet cable, and audio devices to the rear I/O panel.
4. Operating Instructions
After successful hardware installation, connect your system to a power source and power it on.
4.1. BIOS Setup
Upon initial boot, you may need to enter the BIOS (Basic Input/Output System) setup to configure system settings, boot order, and other parameters. Typically, you can access the BIOS by pressing the DEL or F2 key during the system's power-on self-test (POST) phase.
- Configure boot device priority for operating system installation.
- Set system date and time.
- Adjust memory timings or CPU settings if necessary (advanced users only).
- Save changes and exit the BIOS to continue booting.
4.2. Operating System Installation
Insert your operating system installation media (USB drive or DVD) and follow the on-screen prompts to install the OS. After installation, install the necessary drivers for the motherboard components (chipset, audio, LAN, graphics) from the provided driver disc or Intel's official website.
4.3. Integrated Graphics
If using an Intel Core processor with integrated Intel HD Graphics, the motherboard's VGA, DVI-D, and HDMI outputs will be active. This allows for multi-monitor setups and high-definition video playback without a discrete graphics card. For dedicated gaming or high-performance graphics, install a PCI Express 2.0 x16 graphics card.
5. Maintenance
Proper maintenance ensures the longevity and stable operation of your motherboard.
- Dust Removal: Regularly clean dust from inside your computer case, especially from heatsinks and fans, using compressed air. Ensure the system is powered off and unplugged before cleaning.
- BIOS Updates: Check Intel's official website periodically for BIOS updates. BIOS updates can improve system stability, compatibility, and performance. Follow Intel's instructions carefully when updating the BIOS.
- Driver Updates: Keep your device drivers (chipset, audio, LAN, graphics) updated to ensure optimal performance and compatibility with new software.
- Environmental Conditions: Operate the motherboard in a well-ventilated area with stable temperature and humidity. Avoid extreme temperatures or direct sunlight.
6. Troubleshooting
This section addresses common issues you might encounter.
6.1. System Does Not Power On
- Verify that the power supply cables (24-pin and 4-pin ATX 12V) are securely connected to the motherboard.
- Ensure the front panel power switch connector is correctly attached to the motherboard header.
- Check if the power supply unit (PSU) is functioning correctly and its switch is in the 'ON' position.
- Confirm that the CPU and RAM are properly seated.
6.2. No Display Output
- Ensure your monitor is connected to the correct video output (VGA, DVI-D, or HDMI) on the motherboard or discrete graphics card.
- If using integrated graphics, confirm that your Intel Core processor supports Intel HD Graphics.
- Reseat any installed graphics cards and ensure auxiliary power connectors are attached if required.
- Try booting with only one RAM stick installed, or try different RAM slots.
6.3. Operating System Instability or Crashes
- Ensure all drivers (chipset, graphics, audio, LAN) are installed and up to date.
- Check for overheating by monitoring CPU and GPU temperatures. Ensure proper airflow within the case.
- Run a memory diagnostic tool to check for faulty RAM modules.
- Verify that your operating system is compatible with the hardware.
7. Technical Specifications
| Feature | Specification |
|---|---|
| Brand | Intel |
| Model Name | BOXDH55TC |
| CPU Socket | LGA 1156 |
| Compatible Processors | Intel Core i7, i5, i3, Pentium |
| Chipset Type | Intel H55 Express |
| RAM Memory Technology | DDR3 |
| Memory Clock Speed | 1333 MHz |
| Memory Slots Available | 4 |
| Ram Memory Maximum Size | 16 GB |
| Graphics Card Interface | PCI, PCI Express |
| Total PCIe Ports | 3 (1x PCIe x16, 2x PCIe x1) |
| Total SATA Ports | 6 (SATA 2.0) |
| Total USB Ports | 12 (USB 2.0) |
| Number of Ethernet Ports | 1 (Gigabit) |
| Total Number of HDMI Ports | 1 |
| Other Video Outputs | VGA, DVI-D |
| Audio Codec | Realtek ALC888S (8-Channel) |
| Form Factor | MicroATX (9.6 x 9.6 inches) |
| Item Weight | 2.15 Pounds |
8. Warranty and Support
The Intel BOXDH55TC Motherboard is backed by a three-year limited warranty.
For technical support, driver downloads, BIOS updates, and detailed product information, please visit the official Intel support website or the Intel Store on Amazon.
When contacting support, please have your motherboard model number (BOXDH55TC) and serial number ready.





