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 CPU speed before and after heating
Run the same CPU benchmark before and after a heat test to see whether performance drops, then learn how to make the comparison fair.
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Tests
Laptop fan loud but performance drops
Find out whether heat is slowing your laptop, how to check it with a browser test, and what to fix before paying for a repair.
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Tests
Why battery life estimates jump up and down
Learn why your laptop's remaining battery time keeps changing, how to read the drain rate, and what to check before blaming the battery.
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Tests
How to compare battery drain before and after updates
Compare battery drain before and after an update with the same settings and workload, so you can tell a real battery change from normal variation.
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Tests
Touchscreen taps by itself: causes and checks
Find out whether phantom touches come from a dirty screen, charger, settings, or failing hardware, then test the screen and try practical fixes.
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Tests
How to test a tablet screen before buying used
Check for dead zones, missed touches, multitouch problems, dead pixels, and screen damage before paying for a used tablet with quick browser tests.
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Tests
Why two-finger gestures stop working on a tablet
Test whether your tablet detects two touches at once, then check app support, accessibility settings, screen protectors, and signs of a touch-screen fault.
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Tests
Touchscreen works with finger but not stylus
Check whether the screen, stylus, or app is at fault, then try compatibility, pairing, and settings fixes that can restore pen input.
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Tests
How to test whether Wi-Fi is dropping packets
Check for Wi-Fi drops with a live browser test, learn what lost requests mean, and narrow down whether the cause is your router or internet.
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Tests
Why Wi-Fi jitter matters for video calls
Learn how Wi-Fi jitter makes calls choppy, how to measure it in your browser, and which fixes can make audio and video more stable.
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Tests
Keyboard randomly misses letters when typing fast
Find out whether your keyboard is dropping individual presses, missing overlapping keys, or losing input in one app, then use a quick test to choose the right fix.
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Tests
Why microphone noise suppression cuts off words
Learn why noise suppression clips the start or end of your words, test whether the browser is doing it, and adjust your microphone settings.