Dell Desktop or All-in-One Computer Stops Responding or Shows a Blue Screen After a Motherboard Replacement

Summary: Learn how to fix a desktop or All-In-One (AIO) computer that stops responding or shows a blue screen intermittently.

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

A desktop or AIO computer may stop responding or show a blue screen randomly. The issue occurs after a motherboard is replaced.

Affected Platforms:

  • Dell Pro 24 All-in-One Plus QB24250
  • Dell Pro 24 All-in-One QC24250
  • Dell Pro 24 All-in-One QC24251
  • Dell Pro Max Micro FCM2250
  • Dell Pro Max Slim FCS1250
  • Dell Pro Max Tower T2 FCT2250
  • Dell Pro Micro Plus QBM1250
  • Dell Pro Micro QCM1250
  • Dell Pro Tower Plus QBT1250
  • Dell Pro Tower QCT1250
  • Dell Pro Slim Plus QBS1250
  • Dell Pro Slim QCS1250
  • Dell Tower ECT1250
  • Dell Slim ECS1250

Cause

No cause information is available.

Resolution

Refer to the following table and update to the latest BIOS on the computer to resolve the issue. To download and install the BIOS, refer to the BIOS Update Guide.

Product

 BIOS Version

Dell Pro Tower Plus QBT1250

Dell Pro Micro Plus QBM1250

Dell Pro Slim Plus QBS1250

Dell Pro Tower QCT1250

Dell Pro Slim QCS1250

Dell Pro Micro QCM1250

Dell Tower ECT1250

Dell Slim ECS1250

 1.3.0 or later

Dell Pro Max Micro FCM2250

Dell Pro Max Slim FCS1250

Dell Pro Max Tower T2 FCT2250

 1.2.1 or later

Dell Pro 24 All-in-One Plus QB24250

Dell Pro 24 All-in-One QC24250

Dell Pro 24 All-in-One QC24251

 1.2.4 or later

 

Affected Products

Dell Slim ECS1250, Dell Tower ECT1250, Dell Pro Max Micro FCM2250, Dell Pro Max Slim FCS1250, Dell Pro Max Tower T2 FCT2250, Dell Pro 24 All-in-One Plus QB24250, Dell Pro Micro Plus QBM1250, Dell Pro Slim Plus QBS1250, Dell Pro Tower Plus QBT1250 , Dell Pro 24 All-in-One QC24250, Dell Pro 24 All-in-One QC24251, Dell Pro Micro QCM1250, Dell Pro Slim QCS1250, Dell Pro Tower QCT1250 ...
Article Properties
Article Number: 000312669
Article Type: Solution
Last Modified: 13 Nov 2025
Version:  3
Find answers to your questions from other Dell users
Support Services
Check if your device is covered by Support Services.