Asymmetry of two-channel memory connection

What is DCH-ASYNC?

The DCH-ASYNC error is categorized as a critical-severity system memory (RAM) issue that can significantly impact your PC's stability. Although the memories run in Dual-Channel, they are poorly matched, which limits throughput. When experiencing the Asymmetry of two-channel memory connection fault, users often report sudden system crashes, unresponsive behavior, or a blue screen of death (BSOD). In most diagnostic scenarios, this problem is directly triggered by underlying hardware or software complications such as different modules in one board, poor quality cpu controller, frequency too high and dust in slot. To permanently resolve the DCH-ASYNC issue and prevent further system degradation, it is highly recommended to follow our step-by-step troubleshooting guide below, ensuring your system memory (RAM) components are functioning correctly.

Common Causes

• Different modules in one board
• Poor quality CPU controller
• Frequency too high
• Dust in slot

Step-by-Step Fix Guide

• 1
  Disable XMP profile in BIOS

  Applying the first fix (Disable XMP profile in BIOS) addresses the most common root cause of DCH-ASYNC and restores baseline functionality.

• 2
  Clean the RAM contacts with a school eraser

  If the problem persists, proceeding with the remaining steps ensures all edge cases related to ram instability are covered.

• 3
  Update BIOS for better compatibility

Commands & Diagnostics