In this guide, I’ll be taking apart a Lenovo ThinkPad T450s in order to access and upgrade the hard drive, SSD and RAM.

The Lenovo is fairly easy to work on and upgrade: remove the Phillips head screws from the bottom cover (all but two are captive screws) and you have access to the RAM slot, internal battery, Intel 7265 dual band WiFi 802.11ac + Bluetooth 4.0 card, an M.2 half height slot and the 2.5' drive bay with a standard SATA connector. The ThinkPad T450s comes with 4GB DDR3L-1600MHz RAM, but it’s also has a spare RAM slot. In my case, I will add a Kingston 8GB RAM. Here’s my new Kingston 8GB DDR3L-1600MHz RAM. Upgrade the SSD. Here’s WWAN M.2 slot, I will install a Plextor 2242 M.2 SSD into the slot. Upgrade the hard drive. The T450s comes with HGST 500GB 7200RPM.

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1. Removing the bottom cover

First of all, unlock and remove the battery.
Remove all screws securing the bottom cover. Pry up and remove the cover.
You can use a guitar pick or any other piece of plastic to split the case.

Under the bottom cover you can get access to the following internal components:
– Hard drive
– RAM slot
– M.2 slot
– Internal battery
– Heat sink and Cooling Fan
– Wireless card
– CMOS battery
– Speaker

2. Upgrade the RAM

Lenovo T450 M.2 Ssd Slot

The ThinkPad T450s comes with 4GB DDR3L-1600MHz RAM, but it’s also has a spare RAM slot.
In my case, I will add a Kingston 8GB RAM.

Here’s my new Kingston 8GB DDR3L-1600MHz RAM.

3. Upgrade the SSD

Here’s WWAN M.2 slot, I will install a Plextor 2242 M.2 SSD into the slot.

4. Upgrade the hard drive

Lenovo T450 M.2 Slot Laptop

The T450s comes with HGST 500GB 7200RPM hard drive. If necessary, you can upgrade to a larger capacity hard drive, or replace it with a 2.5″ SSD.