Uploaded October 2025 | Updated September 2026, 2 weeks ago

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The Lenovo ThinkPad T480s comes with either 4GB or 8GB of DDR4 2400MHz memory soldered directly to the motherboard, along with one additional SO-DIMM slot for upgrades. To install an 8GB DDR4 module, power off and unplug the laptop, remove the bottom cover with a screwdriver, locate the available RAM slot beside the soldered memory, and insert the new module at a 30° angle until it clicks into place. Reattach the cover, power on the system, and confirm that the new memory is detected in the BIOS or operating system. For best results, run Lenovo Diagnostics to verify the RAM is functioning properly. All these steps are demonstrated in this video tutorial.

🔗 Useful Links
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Lenovo ThinkPad T480s Tech Specs
psref.lenovo.com/syspool/Sys/PDF/ThinkPad/ThinkPad_T480s/ThinkPad_T480s_Spec.pdf

Upgrading RAM on the Lenovo ThinkPad T480s
anavi.org/article/332

📚 Chapters
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0:00 Intro
0:19 Disassembly
2:03 RAM
4:07 Assembly
4:34 Memory Test
7:20 Conclusions