A-Tech ASO402

A-Tech 4GB DDR4 2666MHz SODIMM Memory Module (Model ASO402) Instruction Manual

Model: ASO402 | Brand: A-Tech

1. Introduction

This manual provides essential information for the proper installation, function, and care of your A-Tech 4GB DDR4 2666MHz SODIMM memory module. Please read these instructions carefully before proceeding with installation to ensure optimal performance and system stability. This memory module is designed to enhance the performance of compatible laptop, mini PC, and all-in-one (AIO) systems by expanding their memory (RAM) capacity.

2. Product Overview

The A-Tech 4GB DDR4 2666MHz PC4-21300 SODIMM is a Non-ECC Unbuffered memory module operating at 1.2V. It is designed for systems requiring 260-pin DDR4 SODIMM memory. This module is engineered to meet JEDEC DDR4 standards, ensuring compatibility and reliable performance.

A-Tech 4GB DDR4 2666MHz SODIMM Memory Module

Figure 1: A-Tech 4GB DDR4 2666MHz SODIMM Memory Module (Front View)

A-Tech 4GB DDR4 SODIMM Memory Module Dimensions

Figure 2: Dimensions of the A-Tech 4GB DDR4 SODIMM Memory Module. The module measures 69.60mm (2.74in) in length and 30mm (1.18in) in height.

3. Compatibility

This A-Tech 4GB DDR4 SODIMM memory module is compatible with a range of systems that support DDR4 2666MHz Non-ECC Unbuffered 260-pin SODIMM memory. Specific compatible models include, but are not limited to:

  • ASRock H110M-STX
  • ASRock H110TM-ITX R2.0
  • ASRock H310M-STX
  • ASRock IMB-198 / IMB-199
  • ASRock J4005B-ITX
  • ASRock J4105B-ITX
  • ASRock J4125-ITX
  • ASRock M15
  • ASRock MXM IPC-H110
  • ASRock SBC-330

It is designed for laptop, mini PC, and all-in-one (AIO) systems. Note: This module is not compatible with standard desktop PC/computer systems that require DIMM memory. Always refer to your system's manual or manufacturer's specifications to confirm memory compatibility before installation.

Compatibility image showing various laptop and all-in-one computers

Figure 3: The A-Tech SODIMM module is designed for installation in DDR4-capable laptop, notebook, and all-in-one (AIO) computers.

4. Specifications

FeatureSpecification
Memory TypeDDR4 SODIMM
Capacity4 GB
Speed2666 MHz (PC4-21300 / PC4-2666)
Pin Count260-Pin
Error CorrectionNon-ECC Unbuffered
Voltage1.2V
Dimensions (LxWxH)2.74 x 1.18 x 0.15 inches (69.60 x 30 x 3.81 mm)
Model NumberASO402

5. Setup and Installation

Installing RAM is a straightforward process, but it requires careful handling to prevent damage to the module or your system. Always consult your system's specific service manual for detailed instructions on accessing and installing memory, as procedures may vary by model.

Safety Precautions:

  • Power Off: Completely shut down your computer and disconnect all power cables (including the battery for laptops) before beginning installation.
  • Static Electricity: Static electricity can damage electronic components. Ground yourself by touching a metal, unpainted part of your computer chassis before handling the memory module. Consider using an anti-static wrist strap.
  • Handle Carefully: Hold the memory module by its edges, avoiding contact with the gold connectors or the chips on the module.

Installation Steps:

  1. Access Memory Slots: Open your computer case or laptop access panel to locate the memory slots. Refer to your system's manual for exact location and access methods.
  2. Remove Existing Modules (if applicable): If replacing existing memory, gently push the small clips on both sides of the memory slot outwards. The module will pop up at an angle. Carefully pull it out of the slot.
  3. Insert New Module: Align the notch on the A-Tech SODIMM module with the key in the memory slot. The module should be inserted at approximately a 45-degree angle.
  4. Secure Module: Apply even pressure to both ends of the module until it clicks into place and the side clips snap securely. The module should lie flat and be firmly seated.
  5. Close System: Once the module is securely installed, close the access panel or computer case.
  6. Power On: Reconnect all power cables and power on your computer. The system should automatically detect the new memory.

If your system does not boot or recognize the new memory, refer to the Troubleshooting section of this manual.

6. Operating Principles

Random Access Memory (RAM) serves as your computer's short-term data storage, allowing for quick access to data by the CPU. The A-Tech DDR4 SODIMM module functions as a high-speed temporary storage area for data that your computer is actively using. Increasing your system's RAM capacity, such as by installing this module, allows your computer to handle more applications simultaneously and process larger datasets more efficiently, leading to improved overall system responsiveness and multitasking capabilities.

Image depicting a person multitasking on a laptop

Figure 4: Expanding your system's memory capacity allows for easier multitasking and improved system performance.

7. Maintenance

Memory modules generally require minimal maintenance. Once installed correctly, they are designed for continuous operation. However, consider the following:

  • Keep System Clean: Ensure your computer's interior is free from dust and debris, which can impede airflow and lead to overheating of components, including RAM.
  • Environmental Conditions: Operate your computer within recommended temperature and humidity ranges to prevent component degradation.
  • Physical Handling: Avoid unnecessary removal or re-installation of the memory module once it is properly seated, as repeated handling increases the risk of static discharge or physical damage.

8. Troubleshooting

If you encounter issues after installing your A-Tech memory module, consider the following troubleshooting steps:

  • System Does Not Boot / No Display:
    • Ensure the memory module is fully seated in its slot. Gently press down on both ends until the clips snap into place.
    • Verify that the module's notch aligns correctly with the slot's key.
    • Try re-seating the module in a different slot (if available) or testing it individually if multiple modules are installed.
    • Confirm that your system's motherboard supports the specific type and speed of DDR4 memory.
  • Incorrect Memory Amount Detected:
    • Check your system's BIOS/UEFI settings to ensure the memory is recognized correctly.
    • Verify that the operating system is 64-bit if you are installing more than 4GB of RAM in total (though this module is 4GB, it's a general tip).
    • Ensure all modules are identical if installing in pairs or multiple slots, or that your system supports mixed configurations.
  • System Instability / Blue Screens:
    • Run a memory diagnostic tool (e.g., Windows Memory Diagnostic, MemTest86) to check for errors.
    • Ensure your system's BIOS/UEFI is updated to the latest version, as this can improve memory compatibility.

If issues persist after following these steps, contact A-Tech Technical Support for further assistance.

9. Warranty and Support

A-Tech memory modules are backed by a Limited Lifetime Warranty, ensuring dependable and reliable performance. This warranty covers defects in materials and workmanship under normal use.

For technical assistance, warranty claims, or any questions regarding your A-Tech product, please contact our knowledgeable Tech Team. You can find more information and contact details on the official A-Tech website: atechmemory.com.

Please note that removal of the warranty label on the memory module may void the warranty.

Ask a question about this manual

Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.

After a successful submission, we securely hash the supplied account or form email before sending it to Microsoft Advertising for conversion attribution. Privacy details.