Dell 7490 (85W5J) service manual

Contents

1. OptiPlex 7490 All-In-One Service Manualp. 1

   Regulatory Model: W26C Regulatory Type: W26C003/W26C004 August 2021 Rev. A01

2. Working inside your computerp. 6

   Safety instructions Use the following safety guidelines to protect your computer from potential damage and to ensure your personal safety. Unless otherwise…

3. Removing and installing componentsp. 10

   NOTE: The images in this document may differ from your computer depending on the configuration you ordered. Recommended tools The procedures in this document…

4. Drivers and downloadsp. 88

   When troubleshooting, downloading or installing drivers it is recommended that you read the Dell Knowledge Based article, Drivers and Downloads FAQ SLN128938.…

5. System setupp. 89

   CAUTION: Unless you are an expert computer user, do not change the settings in the BIOS Setup program. Certain changes can make your computer work incorrectly.…

6. Troubleshootingp. 102

   Display built-in self test About this task The following procedure provides the instructions on how to run the built-in self test for the display: Steps 1.…

7. Getting help and contacting Dellp. 106

   Self-help resources You can get information and help on Dell products and services using these self-help resources: Table 22. Self-help resources Self-help…