Hardware Testing Guides
Expert guides, tutorials, and best practices for testing your hardware. Learn how to identify issues and ensure quality.
All Guides
Browse our complete collection of hardware testing guides and tutorials
2025-2026 Polling Rate Test Results for 100 Gaming Mice
A data-backed look at 100 gaming mice across 125Hz to 8000Hz, with stability notes, real-world limits, and how to compare your setup using our mouse polling rate test.
Top Hardware Testing Tools in 2026: One-Stop Online Platform for Mouse, Screen, GPU, and Peripherals
A 2026 roundup of hardware testing tools, from browser-based no-install checks for mice and screens to GPU stress tests and system monitoring.
Mouse Polling Rate in the Browser: What This Test Measures (and What It Doesn’t)
Web-based mouse polling tests measure browser-delivered pointer event frequency, not raw USB polling. Learn why ~125Hz appears, why high polling rates are indistinguishable on the web, and how to interpret results.
PS5 Controller Stick Drift Test: How to Check DualSense Drift Online
Think your PS5 DualSense has stick drift? Learn how to connect it to your PC/Mac, visualize stick input, set a deadzone, and confirm drift using our free browser-based PS5 controller test.
Click Speed Test (CPS vs CPM): What’s a Good Score + 10s vs 30s
Learn the difference between CPS and CPM, what counts as a good click speed, and whether 10-second or 30-second tests are more accurate. Then run our free click speed test and share your results.
Mouse Polling Rate Test: 125 vs 500 vs 1000Hz (What It Means + How to Check)
Learn what mouse polling rate (Hz) means, the real difference between 125/500/1000Hz, and how to test your mouse polling rate online using our browser-based distribution and stability checker.
Stuck Pixel Fixer: How to Fix Dead Pixels on Monitors & Screens
Bright dot on your display? Learn the difference between dead vs. stuck pixels and use our free Stuck Pixel Fixer to flash them back to life without leaving your browser.
Keyboard Polling Rate Test: Is Your Gaming Keyboard Actually 1000Hz?
Check if your gaming keyboard truly runs at 1000Hz, 500Hz, or 125Hz with our free online polling rate tester and real-time Peak Hz dashboard.
How to Test Logitech G Pro X Keyboard Polling Rate Online (Without Installing G Hub)
Just bought a Logitech G Pro X keyboard? Skip installing G Hub - use our Keyboard Polling Rate Test to confirm your 1000Hz performance in seconds.
Audio Balance Test: Fix Headphones One Side Quieter (Win 10/11)
Is one side of your headphones louder than the other? Use our Audio Balance Test to diagnose uneven sound and fix L/R balance in Windows.
Stereo vs. Mono Audio Test: Are You Getting True Surround Sound?
Does your audio sound flat? Use our stereo vs mono test to see if you are stuck in mono and learn how to fix it on Windows and Bluetooth headsets.
Left and Right Audio Test: Check Stereo Channels Online (L/R)
Check if your headphones are reversed or stuck in mono with our free left and right audio test and quick fixes for channel issues.
Mouse Scroll Wheel Jumping? Test & Fix Your Mouse Scroll Glitch
Mouse wheel jumping up/down or stuttering? Use our free Mouse Scroll Test to confirm the issue and try these fast fixes.
Left or Right Click Not Working? Instant Mouse Button Test & Fixes
Left or right click not working? Use our free Mouse Button Test, then apply these quick fixes before replacing your mouse.
Mouse Double Clicking Issue: Test Your Mouse Switch Health
Single clicks turning into double clicks? Use our free Mouse Test counter to spot switch bounce and decide if you should repair or replace.
Keyboard Polling Rate Explained: Does 1000Hz vs 8000Hz Matter for Gaming?
Keyboard feels laggy? Use our Keyboard Test to check responsiveness and learn whether 1000Hz vs 8000Hz actually matters.
Mechanical vs. Membrane Keyboards: Which One Do You Actually Need?
Mechanical vs membrane keyboards: see which is right for you and test your current board with our free Keyboard Test.
How to Deep Clean Your Mechanical Keyboard (Without Breaking It)
Deep clean your mechanical keyboard safely, then verify every key with our free Keyboard Test checklist.
Laptop Keyboard Not Working? 6 Ways to Fix It (Before You Buy a New One)
Laptop keyboard not typing? Use our Keyboard Test to diagnose, then fix drivers, ribbon cables, or debris before replacing hardware.
Mac vs. Windows Keyboard Layouts: How to Test and Remap Your Keys
Command vs Control vs Option confusing? Test your keyboard online and remap keys correctly for Mac or Windows.
What is Keyboard Ghosting? How to Test and Why It Matters for Gaming
Press a key and nothing happens? Use our keyboard test to check ghosting/rollover and learn when you need true NKRO for gaming.
Spacebar Not Working? 5 Easy Fixes to Try Before Buying a New Keyboard
Spacebar unresponsive, stuck, or loose? Diagnose stabilizers, software settings, and hardware fixes before replacing your keyboard.
How to Fix Keyboard Double Typing (Key Chattering): The Ultimate Guide
Keyboard double typing or chattering? Use our free Keyboard Test to confirm the issue and apply five proven fixes before replacing your board.
How to Fix a Stuck Pixel on Your Monitor
Found a bright dot on screen? Use our free Screen Test to locate stuck pixels, try safe fixes, and know when to claim warranty.
IPS Glow vs. Backlight Bleed: What's Normal?
Corners glowing or bright patches? Use our Screen Test to tell IPS glow from backlight bleed and decide if you should RMA.
Dead Pixels vs Stuck Pixels: What's the Difference?
Black dots or bright dots? Use our Screen Test to spot dead vs stuck pixels, pick the right fix, or decide when to RMA.
The Ultimate Guide to Monitor Quality Control
New monitor? Run this QC checklist with our Screen Test to find dead pixels, bleed, and defects before your return window closes.
OLED Burn-in: Prevention and Testing
Everything you need to know about OLED screen retention and burn-in. Learn prevention strategies, testing methods, and when to worry.
144Hz vs 240Hz: Can You See the Difference?
Is upgrading from 144Hz to 240Hz worth it? We break down the real-world differences, who benefits most, and whether your eyes can actually tell.
Monitor Color Calibration for Beginners: A Step-by-Step Guide
Learn how to calibrate your monitor for accurate colors. From basic free methods to professional calibration, get the colors right.
Best Monitor Testing Tools in 2025: Free & Professional Options
Complete guide to the best software and hardware for testing monitors. From free online tools to professional equipment—find the right solution.
Gaming Monitor Buying Guide 2025: Choose the Perfect Display
Complete guide to buying a gaming monitor. Learn about refresh rates, response times, panel types, and features that actually matter for gaming.
How to Test Your Monitor Before the Return Period Ends
Don't get stuck with a defective monitor. Complete guide to testing your new display within the return window—ensure you catch all issues in time.
Dead or Stuck? How to Diagnose Your Screen Issues
Learn how to tell if a pixel is dead or stuck with a step-by-step screen test using solid colors, motion checks, and quick verification tricks.
Can Dead Pixels Be Fixed? The Truth About Screen Repair
Which methods can revive stuck pixels, why true dead pixels rarely recover, and how to fix safely without damaging your panel.
Is 1 Dead Pixel Acceptable? Understanding Monitor Warranties
Why one dead pixel is often “acceptable” under ISO 13406-2, how brands differ, and how to use retailer return windows to your advantage.
Dead Pixels vs. OLED Burn-in: What’s the Difference?
Learn how to tell dead/stuck pixels from OLED burn-in, how to test both, and what you can and cannot fix or prevent.
Buying a Used Monitor? Run These 3 Tests Before You Pay
A rapid but thorough checklist to catch dead pixels, backlight bleed, and physical damage before buying second-hand.
How to Check Your Smartphone for Dead Pixels (iPhone & Android)
Mobile pixels are tiny; here’s how to test phones with a browser, Android secret codes, and practical tricks before the return window closes.
Why It’s Getting Harder to Spot Dead Pixels (The 4K Dilemma)
High PPI hides defects. Learn the pixel density math and practical tricks to reveal “invisible” pixels on 4K and Retina screens.
Anatomy of a Failure: What Actually Breaks Inside a Dead Pixel?
Understand TFT transistors, sub-pixels, failure modes, and why some pixels are fixable (stuck) while dead ones aren’t.
Safety First: Are Dead Pixel Fixing Tools Dangerous?
Flashing tools can trigger photosensitive epilepsy. Use fixers safely, protect sensitive users, and understand what is safe for your monitor.
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