Blog
Tests
Guides for testing your keyboard, mouse, screen, sound, network and other hardware, and for fixing what the tests find.
-
Tests
How to check a secondhand mechanical keyboard
Check every key, test rollover, and inspect switches, stabilizers, cable, and wear before buying a secondhand mechanical keyboard.
-
Tests
External display looks stretched: fix resolution and scaling
Check the external screen's resolution and scaling, then fix stretched images, oversized text, or black bars in Windows 11 or macOS.
-
Tests
Brief connection dropouts during remote work
Learn what brief internet dropouts mean for calls, remote desktop, and uploads, then test for packet loss and fix the most likely cause.
-
Tests
How to check a laptop and external monitor together
See whether your laptop and external monitor are both detected, set up correctly, and showing the right image with a quick browser check.
-
Tests
How to tell if background apps affect CPU tests
Learn how to compare Processor Test results, spot CPU load from background apps, and tell whether a low score points to software, heat, or hardware.
-
Tests
How to test GPU performance in a browser
Run a free browser GPU test, understand its score and compare results fairly. Learn what to check if graphics performance seems low.
-
Tests
How to check if a power bank charges well
Compare a power bank with a known charger using your device's charge rate, and learn what slow charging or heat can tell you.
-
Tests
Why battery charge rate varies between tests
Learn why the same charger can show different speeds, how to compare tests fairly, and when a slow result points to a cable, charger, or battery problem.
-
Tests
How to test a USB flash drive's real speed
Measure the real read and write speed of a USB flash drive, understand the numbers, and find out whether a slow port or the drive is the problem.
-
Tests
Why your USB 3.0 drive transfers files slowly
Find out whether a USB 3.0 drive is slow because of its port, tiny files, or the drive itself, then compare its real read and write speeds.
-
Tests
When a speaker rattle means damaged hardware
Use a bass sweep to tell whether a speaker rattle comes from a loose object, audio settings, or damaged hardware, and what to do next.
-
Tests
Stuck pixel vs dead pixel: how to tell them apart
Learn how a stuck pixel differs from a dead pixel, test your screen with solid colors, and find out whether a flashing fix is worth trying.