Systems Lag After Setting Multi-Core to 1 and Disabling Hyper-threading in BIOS

Summary: This article provides information about the Inspiron 7700/5400/5401 AIO Systems Lag after Setting Multi-core to 1 and Disabling Hyper-Threading in BIOS.

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.
Check out other resources

Symptoms

 

The system may perform poorly or appear to lag after setting Multi-core to 1 and Hyper-Threading control to Disabled in the BIOS menu.

With the system in this configuration, the multifunctional processor performs in a single-functional mode reducing system performance.

Affected Platform:

  • Inspiron 7700 AIO
  • Inspiron 5400 AIO
  • Inspiron 5401 AIO

 

Cause

 

No cause information is available.

 

Resolution

 

This works within the system's design behavior.

You can restore the settings or adjust the multi-core settings to enhance system performance.

To enhance system performance: Multi-Core Support = All, or the MAX number showed in the BIOS (based on configuration). Hyper-Thread = Enable

 

Affected Products

Inspiron 5400 AIO, Inspiron 5401 AIO, Inspiron 7700 AIO
Article Properties
Article Number: 000180031
Article Type: Solution
Last Modified: 22 Apr 2025
Version:  5
Find answers to your questions from other Dell users
Support Services
Check if your device is covered by Support Services.