Fan Error Occurs on a Dell Pro Micro QCM1255, Dell Pro Tower QCT1255, or Dell Pro Slim QCS1255

Summary: Learn about the fan error occurs on a Dell Pro Micro QCM1255, Dell Pro Tower QCT1255, or Dell Pro Slim QCS1255.

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Symptoms

"Alert! Previous fan failure" message may display in the event log, or a fan-related error code 2000-0511, 2000-0512, 2000-0712, or 0501 may display in the ePSA diagnostics.

An Alert! Previous fan failure message may display in the event log 

Affected Platforms:

  • Dell Pro Micro QCM1255
  • Dell Pro Slim QCS1255
  • Dell Pro Tower QCT1255

Cause

A BIOS coding error causes this issue.

Resolution

Updating to BIOS version 1.2.1 or later on the computer resolves the issue. To download and install the BIOS, refer to the BIOS Update Guide.

Affected Products

Dell Pro Micro QCM1255, Dell Pro Slim QCS1255, Dell Pro Tower QCT1255
Article Properties
Article Number: 000343094
Article Type: Solution
Last Modified: 13 Nov 2025
Version:  2
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