Is the ThinkPad L420 good for Linux?

Yes — mainstream distros install cleanly on this era of ThinkPad, and the excellent keyboard makes terminal-heavy work genuinely pleasant. The easy serviceability means RAM and storage upgrades take minutes. It's a classic cheap Linux daily driver in the community's rotation.

What are the ThinkPad L420's weaknesses?

The era-standard three: a low-resolution 1366x768 screen, mediocre battery life, and Sandy Bridge performance that shows its 2011 birth certificate. None of that shocks anyone at the prices L420s command. For writing and browsing with a great keyboard, the trade reads fine in 2026.

Can you upgrade the ThinkPad L420?

Yes, and the community calls SSD and RAM upgrades perfect for this chassis — memory reaches 8GB officially, with 16GB commonly reported working. One warning: quad-core CPU swaps are not recommended, as the platform's power delivery, cooling, and BIOS were designed for dual-core Sandy Bridge chips. Upgrade around the CPU, not through it.

Lenovo ThinkPad L420 Computers Price, Specs & Reviews

Name: Lenovo ThinkPad L420 Computers
Brand: Lenovo

Lenovo ThinkPad L420 Computers

$90.00

Lenovo

$90.00

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StudentsCasual users

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Intel N Series

Intel Core I3

Intel Core I5 (6th Gen)

Intel Celeron

AMD Ryzen 5

Integrated

Intel UHD 600

Integrated

14"

15.6"

14"

15.6"

16G,128GB UFS+128GB MSD

32GB RAM | 1TB SSD

256GB

—

4 GB RAM | 128 GB SSD

Blue

8GB RAM / 256GB SSD

32 GB | 1 TB SSD

4GB | 64GB eMMC

8GB RAM | 512GB SSD

—

Black

Grey

Black

0.8 GHz

1.10 GHz

2.5 GHz

1.1 GHz

2.4 GHz

Windows 11 Home

Windows 11 Pro

Chrome OS

Windows 11

1366×768

1920×1080

—

1920×1080

3.24 Pounds

3.52 pounds

11.3 pounds

not specified

3.65 Pounds

Clamshell

Computer Tower

Chromebook

Clamshell

Experience the most secure Windows ever built. With fast boot times, increased responsiveness, and added protection against phishing and malicious software, applications run more smoothly.,Do more with AI as your personal assistant. Kickstart new projects with relevant answers, simplified solutions, and helpful advice. Copilot in Windows 11 is ready to support you whenever and wherever you need it.,Save time and increase productivity with powerful performance and smooth multitasking. Access fast web applications, edit photos and videos, and get the responsiveness you're looking for.,Enjoy vivid and immersive visuals in creative applications and gaming.,DDR4 RAM efficiently accesses and processes your data, while reducing data corruption.,Non-volatile storage handles multiple read and write requests simultaneously. Power gating increases power efficiency.,With virtually no bezel encircling the display, an ultra-wide viewing experience provides for seamless multi-monitor set-ups.,Watch videos and create colorfu

Privacy camera

Keyboard

Basic stereo speakers and dual-array digital microphone for clear audio and communication.

Keyboard, Microphone

60Hz

802.11 ac/b/g/n, Bluetooth 4.0, HDMI, Headphone, USB

Not specified

Bluetooth, HDMI, USB

HDMI, USB

HDMI

45 watts

—

65 watts

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