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 to test after connecting new peripherals
Check that new keyboards, mice, cameras, speakers, screens, and drives work together, then use a browser-based check to isolate any problems.
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Tests
How to spot backlight bleed on a laptop screen
Learn how to check for backlight bleed on a laptop screen, separate it from normal IPS glow, and decide whether a setting or repair is needed.
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Tests
How to check USB transfer consistency after an update
Compare USB or SD read and write speeds before and after an update, then separate a real slowdown from differences in ports, readers, or background activity.
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Tests
Why your processor feels slower than it used to
Check whether your processor has actually slowed down, then narrow it to heat, power settings, background work, or a change in what you run.
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Tests
Why some VPNs block local network access
Learn why a VPN can hide or block your printer, router, or shared drive, how to identify the setting, and how to restore local access safely.
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Tests
Touchscreen fails when hot: how to check for a fault
Check a touchscreen when it is cool and after normal use, learn what heat-related dead zones suggest, and decide when to stop testing and seek repair.
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Tests
Old ceiling fan rattles? What to inspect
Find the source of an old ceiling fan rattle, compare noise safely, and learn which checks you can do before calling an electrician.
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Tests
How to test a VPN on a shared office network
Test whether a VPN hides your public IP on office Wi-Fi, and understand what a browser leak check can and cannot reveal.
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Tests
How to compare microphone positions on a desk
Compare desk microphone positions with the same short test, then use level and playback to choose a spot with clearer speech and less keyboard noise.
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Tests
White screen shows dust behind the panel: what to check
Use a browser display test to tell dust, surface marks, and pixel defects apart, then choose whether cleaning, a setting, or repair is the next step.
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Tests
Mouse stops working when screen recording starts
Check whether the mouse, browser, or computer is responsible when input stops during a screen recording, then try targeted fixes for Windows and Mac.
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Tests
How to compare motion sensor responses across phones
Compare phone motion, gyroscope, compass, light, and location readings with the same movements, then tell sensor limits from a real difference.