How to open Dell Latitude 16 7640 – disassembly and upgrade options
Step 1: Accessing the Internal Components
- Ensure the Dell Latitude 16 7640 is powered off and placed on a soft, clean surface to prevent scratches or damage.
- Remove the 8 Phillips-head screws from the bottom of the laptop.
- Use a plastic tool to gently pop the bottom plate off, starting from one of the top two corners.
Hint: Be gentle during this process to avoid damaging the internal clips or the laptop casing.
Step 2: Removing the Battery
- Disconnect the battery by pulling out its connector from the motherboard.
- Remove the 4 Phillips-head screws securing the battery to the laptop’s chassis, then lift the optional 57Wh battery away from the device.
Caution: Handle the battery and its connector with care to avoid any damage.
More info: The optional 57Wh battery offers up to 12 hours and 30 minutes of web browsing or 11 hours and 6 minutes of video playback, providing excellent battery life for productivity.
Memory
The Dell Latitude 16 7640 features soldered 32GB of LPDDR5-4800MHz RAM in dual-channel mode, offering ample memory for demanding applications and multitasking.
Storage Upgrade
- Identify the M.2 slot compatible with 2230 Gen 4 NVMe SSDs for storage upgrades.
- The preinstalled SSD benefits from additional cooling provided by a metal shroud with a thermal pad on the inside.
- Choose and purchase a new drive when needed. Don’t forget to check out our Top M.2 SSDs Performance Rankings.
You can buy Gen 4 M.2 SSD modules here: Buy from Amazon.com (#CommissionsEarned)

Examining the Cooling System
Inspect the cooling system, which includes two fans, a couple of heat pipes, a large heat sink, and a heat spreader, designed to efficiently manage the thermal output of the device.






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