How to open Dell Latitude 7455 – disassembly and upgrade options

Undo the 7 Phillips-head screws securing the bottom panel. The screws in the top two edges are captive and will lift the panel up slightly.
Pry the sides and the front with a thin plastic tool, leaving the back for last.

More info: Here’s how the bottom plate looks on the inside.

Battery Removal

Unplug the battery connector from the mainboard.
Undo the 5 Phillips-head screws securing the battery to the base.
Lift the battery to remove it.

Note: The device comes with a 54Wh battery, offering approximately 16 hours of video playback.

Memory Information

Note: The memory is soldered, with options for 16GB or 32GB of LPDDR5x-8448MHz RAM, which should provide ample performance for most users.

Storage Upgrade

There is one M.2 slot compatible with 2230 Gen 4 SSDs.
The preinstalled NVMe drive is covered by a metal plate, secured with a single screw. After removing the screw, pull the shroud forward to release the drive.
The metal cap has a thermal pad on the inside for cooling.

Hint: Don’t forget to check out our Top M.2 SSDs Performance Rankings for insights on the best storage options available.

You can buy compatible SSDs here: Buy from Amazon.com (#CommissionsEarned)

Wi-Fi Card

The Wi-Fi card is located close to the cooling fan and is covered by a metal plate.
To remove the plate, slide it to the left after undoing the screw. There is a cooling pad beneath the Wi-Fi card as well.

Cooling System Overview

The thermal system is simple but effective, consisting of one fan, a single long heat pipe, a heat sink, and a large heat spreader.

Dell Latitude 14 7455 in-depth review

The 14-inch Dell Latitude 7455 is offered with new Qualcomm CPUs. This includes the Snapdragon X Elite X1E-80-100 with eight P cores and four E cores. The more modest Snapdragon X Plus X1P-64-100 has two fewer performance cores than its bigger sibling. The main focus here is the powerful NPU chip for accelerated AI productivity.There is just one display model but this one sounds great on paper - 1600p resolution alongside touchscreen capabilities. The port selection doesn't include many connectors but at least you get two full-function 40 Gbps USB4s. This device relies on Type-C charging w[...]

Read the full review

Pros

The fan isn't too noisy under long 100% CPU loads in "Ultra Performance" mode
Solid aluminum build
Comfortable keyboard
No PWM (AUO0BA4)
98% sRGB coverage + accurate colors with our "Design and Gaming" profile (AUO0BA4)
1670:1 contrast ratio + 418 nit max brightness (AUO0BA4)
Up-to-date port selection with 2x Thunderbolt 4 ports + MicroSD card slot
Very long battery life
1080p IR Web camera with a privacy shutter
Fingerprint reader + Nano SIM slot (all are optional)
The CPU can sustain 4.00 GHz / 3.40 GHz P and E-core clock in short and medium loads
The bottom panel can be easily popped