Low CPU Speed When Latitude 7320 Detachable is on Battery Only and a USB-C Device is Connected

Summary: This article discusses the Latitude 7320 Detachable having low CPU speed when on battery only and under sixty-five percent with a USB-C device connected.

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.
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Symptoms

Affected Platforms:

  • Latitude 7320 Detachable

Customers may contact Dell Technologies complaining about low CPU speeds on the Latitude 7320 Detachable when on battery only.

Check to see if there are any USB-C devices connected to the computer.

Cause

A connected Type-C device with low battery capacity has a lower MPP and causes the PL4 to drop, and this impacts the CPU frequency.

Resolution

Update the BIOS to v1.34.0 or later to resolve the issue.

Affected Products

Latitude 7320 Detachable
Article Properties
Article Number: 000218881
Article Type: Solution
Last Modified: 22 Apr 2025
Version:  6
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