Blog
Tests
Guides for testing your keyboard, mouse, screen, sound, network and other hardware, and for fixing what the tests find.
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Tests
What charging rates reveal about a worn connector
Compare charging rates across cables and ports to spot clues of a worn connector, and learn how to separate a loose port from a weak charger.
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Tests
Laptop speakers sound distorted at high volume
Find out whether distortion comes from the audio, a setting, or failing laptop speakers, then test at safer levels and work through likely fixes.
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Tests
Door handle buzzing with music: what to inspect
Find the frequency that makes a door handle buzz, tell loose hardware from room vibration, and fix the rattle without risking the lock.
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Tests
Test Wi-Fi before installing a garage controller
Map Wi-Fi at the controller's exact mounting spot before installation, then learn whether weak coverage, interference or brief drops need fixing.
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Tests
Why microphone gain changes noise readings
Learn why a microphone gain change can raise or lower a Noise Meter reading even when room sound stays the same, and how to compare levels fairly.
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Tests
Touch input fails with cold fingers: what to try
Find out whether cold, dry fingers, gloves, a screen protector, or a touch screen fault is behind missed taps, then try these quick fixes.
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Tests
How to spot key chatter on a mechanical keyboard
Learn how to tell key chatter from normal key repeat, test one switch at a time, and narrow down whether the cause is the keyboard or a setting.
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Tests
Why software updates affect short CPU tasks
Learn why short CPU test results can change after a software update, how to compare runs fairly, and when a score shift may point to a real slowdown.
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Tests
How to test Enter and Escape before a presentation
Test Enter and Escape in your browser, then check the presentation app, keyboard connection, focus, and accessibility settings before you go live.
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Tests
How to check graphics slowdowns with multiple windows
Compare a browser graphics score with one window and several open, then check whether system load, power settings, or the GPU is slowing things down.
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Tests
How to verify a school-issued memory card's capacity
Learn how to safely test a school-issued SD card's real capacity, read the result, and tell a counterfeit card from a reader or permission problem.
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Tests
How to compare memory latency across power modes
Compare RAM response time in different power modes with repeatable tests, then separate real changes from heat, battery state, and background activity.