Dell Latitude 5420 Repair

Troubleshooting link.

The Dell Latitude 5420 laptop is part of the Latitude series from Dell. The 5420 model was released in 2021, weighs 3.03 lbs, and is approximately 12.7 x 8.4 x .8 inches.

For additional identification information, search for your model description on the Laptop Identification Tag, located on the underside of your computer.

This laptop is not very difficult to repair. Once the back panel os removed, the laptop components are easily accessible. These include 2 SO-DIMM DDR4 memory slots, one M.2 NVMe SSD slot and on M.2 accessory (WiFi, etc.) slot (looks to be B keyed).

One downside to repairability is that the CPU is soldered directly to the motherboard. This means neither the CPU nor the motherboard can be replaced without replacing the other.

The Dell Latitude 5420 has "Latitude 5420" etched on the bottom cover of the laptop. Flip your laptop over and check for this engraving at the center of the bottom cover.

CPU

This laptop comes with one of the following CPUs, depending on the model purchased.

• 11 Gen Intel® Core™ i5-1145G7, vPro® (8 MB cache, 4 cores, 8 threads, up to 4.40 GHz Turbo)
• 11 Gen Intel® Core™ i7-1185G7, vPro® (12 MB cache, 4 cores, 8 threads, up to 4.80 GHz Turbo)

Operating System

• Windows® 11 Professional

Memory

This laptop comes with one of the following RAM configurations, depending on the model purchased.

• 8GB (DDR4)
• 16GB (DDR4)

Graphics

• Integrated Intel® Iris® Xe Graphics Capable with Thunderbolt for I5-1145G7 vPro® processor

Dimensions

• 321.35mm x 212.1mm x 19.3mm (12.65" x 8.35" x .76")

Optical Drive

• N/A

Camera

• 720p at 30 fps, widescreen HD RGB camera, Dual-array microphones

Display

• 14" FHD (1920x1080) Non-Touch, Anti-Glare, 250nits, WLAN/WWAN, HD Camera

Weight

• 1.37 kgs (3.03 lbs)

I/O Ports

• 1 RJ-45 Ethernet port
• 1 USB 3.2 Gen 1 port
• 1 USB 3.2 Gen 1 port with PowerShare
• 2 Thunderbolt 4 ports with DisplayPort Alt Mode/USB4/Power Delivery
• 1 HDMI 2.0 port
• 1 Universal audio port

Wireless Connectivity

• Intel® Wi-Fi 6 AX201 2x2 .11ax 160MHz + Bluetooth 5.2

Keyboard

• Full-size ergonomic keyboard

Battery Life

• 4 Cell, 63 Wh, ExpressCharge™ Capable

Speakers

• Stereo speakers with Realtek Waves MaxxAudio^® Pro, 2 W x 2 W = 4 W total
  Dual-array microphones

• Dell Latitude 5420 Configuration Page
• Dell Latitude 5420 Service Manual
• Dell Latitude 5420 Device Specifications
• LaptopMedia YouTube: Disassembly & Upgrade Options