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PeriphCheck Guides

Guides

Practical fixes for the problems our tests uncover — written by the team that builds the tools.

How to Check Your Real Monitor Refresh Rate

Check your real monitor refresh rate, not just the spec. Verify actual Hz in the browser, fix Windows 11 and macOS settings, cables, and GPU limits.

Updated Jul 10, 2026

Dead Pixel vs Stuck Pixel — and How to Revive One

Dead pixel vs stuck pixel: how to tell them apart on any screen, which one can be revived, and the safe fixes that actually work before you claim RMA.

Updated Jul 10, 2026

Double-Click Mouse Problem: Causes & Fixes

Mouse double-clicking on a single click? Learn what causes switch bounce, how to test and confirm it, plus fixes from settings tweaks to switch swaps.

Updated Jul 10, 2026

How to Fix Controller Drift (Xbox, PS5, Switch)

Controller drift fixes for Xbox, PS5, and Switch: how to confirm stick drift, recalibrate, adjust deadzones, clean the sticks, and know when to repair.

Updated Jul 10, 2026

Keyboard Chatter: What It Is and How to Fix It

Keyboard chatter makes keys register twice per press. Learn how to detect double-registering switches, clean or fix them, and stop repeated keystrokes.

Updated Jul 10, 2026

Why Is My Mic Not Working? (Windows 11 / macOS Checklist)

Mic not working on Windows 11 or macOS? Follow this checklist: permissions, input device selection, levels, drivers, and hardware tests that isolate it.

Updated Jul 10, 2026

NKRO vs 6-Key Rollover Explained

NKRO vs 6-key rollover explained: what key rollover means, why USB keyboards report 6 keys, how ghosting differs, and how to test your keyboard now.

Updated Jul 10, 2026

How to Test Headphones for Correct L/R and Bass

Test headphones for correct left/right channels and real bass response. Step-by-step stereo, polarity, and frequency checks plus fixes for swapped sides.

Updated Jul 10, 2026

Webcam Shows Black Screen: 9 Fixes

Webcam shows a black screen? Work through 9 fixes in order: privacy shutters, permissions, app conflicts, drivers, and USB issues on Windows and Mac.

Updated Jul 10, 2026

What Is a Good CPS? Click Speed Benchmarks

What is a good CPS? See realistic click speed benchmarks by technique, from normal clicking to jitter and butterfly, and how to test and improve yours.

Updated Jul 10, 2026