Salesman says RAM that I picked doesn`t work in dual channel

Optimizing RAM Compatibility and Performance for Your GIGABYTE AORUS 16X 9KG Laptop

Upgrading your laptop’s RAM can significantly enhance its performance, but ensuring compatibility and optimal configuration is crucial. Recent experiences highlight common pitfalls and misconceptions when selecting memory modules, especially for high-performance laptops like the GIGABYTE AORUS 16X 9KG featuring an Intel Core i7-13650HX processor.

Understanding RAM Specifications and Compatibility

When considering a RAM upgrade, it’s important to recognize the various factors that influence compatibility:

  • Memory Type and Speed: The processor and motherboard dictate the maximum supported RAM speed. For the i7-13650HX, official specifications indicate support for DDR5 RAM up to 4800MHz, although some modules may run at higher speeds if supported and configured correctly.

  • Module Configuration and Channel Support: Many laptops utilize dual-channel memory configurations to optimize bandwidth. Importantly, simply pairing two identical modules does not automatically guarantee dual-channel operation if the modules or their configurations are not compatible or intended for dual-channel use.

  • Vendor Recommendations and Qualified Modules: Purchasing from qualified vendors or using OEM-approved modules ensures reliable compatibility. In this case, GIGABYTE provided a list featuring a specific 32GB DDR5 SO-DIMM module with:

  • Model: SK Нупіх DDR5 32GB 5600MHz SO-DIMM 2Rx8 PC5-5600B HMCG88AGBSA092N AA

Analyzing the Situation

In your scenario, you ordered two of the above modules with plans to upgrade your laptop to 64GB total RAM. However, you discovered that:

  1. The processor’s official support limits DDR5 speeds to 4800MHz, and modules rated at 5600MHz may not operate at their rated speed unless overclocked and supported by the system.

  2. The specific memory module you selected is a single-rank (2Rx8) SO-DIMM designed as a single module, not necessarily optimized for dual-channel operation when used in pairs, especially if these modules are not explicitly marketed as dual-channel kits.

  3. The salesperson’s warning that your chosen modules may not work in dual-channel mode is technically valid. Using two identical modules is generally required for dual-channel performance, but the modules must be compatible, identical in specifications, and recognized by your system as a dual-channel pair.

Is There a Cause for Concern?

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