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
Why Wi-Fi 6 does not guarantee fast downloads
Learn why a Wi-Fi 6 router can still deliver slow downloads, how to test the connection, and whether the limit is Wi-Fi, your plan, or the server.
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Tests
Why Hyper-Threading changes logical core counts
Learn why Windows or a browser may show more logical processors than physical cores, and how to check whether Hyper-Threading is enabled.
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Tests
How to check visual defects on a curved ultrawide
Check a curved ultrawide for dead pixels, uneven brightness, color shifts and edge problems, then separate panel defects from viewing angle or settings.
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Tests
How to test storage speed without installing apps
Measure large-file and small-write performance in your browser, understand the score, and learn why storage tests can differ from everyday file copies.
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Tests
Can a display cable cause screen defects?
Learn how to tell whether flicker, lines, or odd colors come from a display cable or the screen itself, then test the connection safely.
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Tests
Keyboard repeats keys after waking up: what to check
Find out whether repeated keystrokes after sleep come from a held key, a wake-up connection, or a repeat setting, then try the fixes in order.
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Tests
USB keyboard stops responding through a hub
Find out whether a USB hub, cable, power limit, or keyboard is causing dropouts, then test the keyboard directly and try targeted fixes.
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Tests
How to map Wi-Fi quality along a home hallway
Map Wi-Fi quality from one end of your hallway to the other, spot where it dips, and narrow down whether placement or interference is the cause.
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Tests
How to test a camera before a remote proctored exam
Check your camera, framing, lighting, and browser permission before a remote proctored exam, then fix common problems before test day.
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Tests
Mic volume changes when another app starts a call
Find out whether a call app is changing your microphone input, then check automatic gain, device settings, and Windows or Mac permissions.
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Tests
How to compare an external screen with a projector
Compare an external monitor and projector with the same source, check each screen's resolution and scale, and spot differences in color, focus, and image fit.
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Tests
What a CPU score out of 100 really means
Learn what a CPU score out of 100 measures, how single-core and all-core results differ, and when a change is worth investigating.