Dell Latitude 15 3540 Review – Not for Designers but Here’s How to Make It an Office MVP

Disassembly, Upgrade options, and Maintenance

To open this laptop, you have to undo 9 captive Phillips-head screws. Raise the bottom panel close to one of the top two corners to create a gap. After that, you can pop the plate with a thin plastic tool starting from the sides. Then, you can work your way around the front and the back.

Here’s how the bottom plate looks on the inside.

Our laptop has the optional 54Wh battery, the default version is a 42Wh variant. To remove it, pull out the connector from the motherboard, and undo the 5 Phillips-head screws that fix the unit to the base. The optional capacity lasts for 9 hours and 5 minutes of Web browsing, or 8 hours and 20 minutes of video playback.

You can rely on two SODIMMs that fit up to 64GB of DDR4-3200MHz RAM in dual-channel mode.

Below the cooling fan is placed the single M.2 slot for 2280 or 2230 Gen 4 SSDs. Beneath the NVMe, there are two small thermal pads.

The cooling system has a single fan, one heat pipe, a heat sink, and a heat spreader.

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