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
How to compare street noise with windows partly open
Compare closed and partly open windows with repeatable microphone readings, and learn how to separate a real change from passing traffic.
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Tests
Why closing a laptop lid changes display coordinates
Learn why screen positions shift when you close a laptop lid, how to compare connected displays, and what to change in Windows or macOS.
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Tests
How to inspect a USB drive after changing its file system
Check the new file system, confirm files can be read and written, and measure USB or SD speed before trusting the drive with important data.
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Tests
Why a speaker buzz changes after moving rooms
A speaker buzz that changes rooms may come from the room, its placement, or the speaker. Use a gentle bass sweep to find the source.
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Tests
How to compare daytime and overnight ISP speed
Compare daytime and overnight internet speeds fairly, spot slowdowns, and collect consistent results before you contact your internet provider.
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Tests
Why two MIDI devices have almost the same name
Seeing two MIDI devices with almost identical names? Learn why ports and drivers create duplicates, then identify the right input without changing your setup.
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Tests
How to compare charging during app updates
Compare charging speed while apps update, then separate the effects of the charger, cable, battery level, heat, and update workload.
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Tests
How to check your PC after enabling battery saver
Compare battery use, CPU performance, and screen behavior before and after battery saver to spot normal power savings and catch real problems.
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Tests
Why CPU benchmarks differ across browser engines
Learn why browser engines can produce different CPU benchmark scores, how to compare them fairly, and which results are worth trusting.
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Tests
What to test when a desktop PC arrives by courier
Check a desktop PC for shipping damage, test its main parts in your browser, and save clear evidence before the return window closes.
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Tests
How to check if traffic shaping helps calls
Use a before-and-after bufferbloat test to see whether router QoS or SQM keeps call latency steadier when downloads and uploads fill your connection.
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Tests
How to compare graphics results after changing display scale
Compare Graphics Test scores before and after changing display scale, keep conditions consistent, and separate a real GPU change from normal variation.