Dell 3420 (R29KV) service manual

Contents

1. Latitude 3420 Service Manual for computers with discrete graphicsp. 1

   Regulatory Model: P144G Regulatory Type: P144G001/P144G002 June 2022 Rev. A04

2. Working inside your computerp. 7

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

3. Removing and installing componentsp. 11

   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. 96

   When troubleshooting, downloading or installing drivers it is recommended that you read the Dell Knowledge Based article, Drivers and Downloads FAQ 000123347.…

5. BIOS setupp. 97

   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. 112

   Handling swollen Lithium-ion batteries Like most laptops, Dell laptops use lithium-ion batteries. One type of lithium-ion battery is the lithium-ion polymer…

7. Getting help and contacting Dellp. 118

   Self-help resources You can get information and help on Dell products and services using these self-help resources: Table 24. Self-help resources Self-help…