Refresh Rate Test Shows the Wrong Hz? Common Causes and Fixes
If a refresh rate test reports 60Hz on a 144Hz or 240Hz monitor, check OS settings, cable limits, browser throttling, VRR, duplicated displays, and power mode.
Check your mouse Hz in the browser and see whether it is reporting around 125Hz, 500Hz, 1000Hz, or a higher gaming polling rate.
This measures how often your browser receives mouse movement events (Hz). It is a useful proxy to spot obvious issues (e.g., stuck at ~125Hz), but it is not a lab-grade USB measurement.
A mouse polling rate test measures how often mouse movement events reach your computer or browser, expressed in Hertz (Hz). A 125Hz mouse updates about every 8ms, a 500Hz mouse about every 2ms, and a 1000Hz mouse about every 1ms. This online mouse Hz test shows median Hz, peak Hz, distribution, and stability so you can spot settings stuck at 125Hz, unstable USB connections, or polling rates that do not match your gaming mouse configuration.
Our polling rate tester measures the time interval between mouse movement events in your browser. When you move your mouse, each position update is timestamped with high-precision timers. By calculating the frequency of these updates, we determine your effective polling rate in Hz. We also show distribution patterns, median values, and stability scores. All processing happens locally—no mouse data is sent to servers.
This browser-based test accurately measures polling rates up to approximately 1000Hz for most scenarios. However, there are limitations: Browser event handling introduces some variance. Very high polling rates (2000Hz+) may not measure accurately. System load and compositor timing can affect readings. USB hubs or power saving may throttle rates. For lab-grade precision, hardware USB analyzers are more accurate.
125Hz is standard for basic mice, 500Hz is common for gaming, 1000Hz is high-performance. If expecting higher but seeing ~125Hz, check mouse software or USB power settings.
High stability means consistent polling intervals. Low stability with erratic readings may indicate USB issues, power saving throttling, or system interference.
The frequency distribution shows how consistent your polling is. A tight peak indicates stable polling; a wide spread suggests inconsistent intervals.
Common reasons to check polling rate
Compare browser-visible mouse event Hz with the expected setting and look for obvious caps or unstable reporting.
Check whether browser-visible event Hz is broadly consistent with the expected setting before the return window closes.
Irregular polling can cause cursor jitter and micro-stutters. This test helps identify polling inconsistency.
USB hubs can reduce effective polling rate. Test directly connected vs. hub to compare.
Common problems and fixes
Connect directly to a motherboard USB port (not a hub). Hubs and extension cables reduce effective polling rate.
Check your mouse software; some mice default to 125Hz and require software to enable higher rates.
Close background applications that may be consuming CPU. High CPU load causes the browser to miss polling events.
8000Hz (8K) polling requires USB 2.0 or higher direct connection. Some USB controllers cap at 1000Hz. Check your mouse firmware version.
Key terms explained
Best practices for stable mouse input
Always plug your gaming mouse directly into a motherboard USB port. Avoid hubs, extension cables, and front-panel USB ports.
Mouse manufacturers release firmware updates that can fix polling rate bugs and improve connection stability.
Many gaming mice require their companion software to enable rates above 125Hz. Ensure the software is installed and the rate is configured.
High CPU load can cause the OS to miss mouse reports, making the effective polling rate appear lower than configured.
Common questions about mouse polling rate tests, mouse Hz, input latency, and browser measurement limits.
More free tools to check your setup.
Check left click, right click, middle click, scroll wheel up/down, and double-click issues online.
Estimate your mouse DPI by moving it a measured distance. Compare repeated browser readings with your configured sensitivity.
Check mouse double-click issues, switch chatter, click interval, and accidental double clicks online.
Measure browser-level click-to-frame latency using requestAnimationFrame. See average, best, and worst lag across 10 clicks.
Measure your reflex speed in milliseconds with a 5-round click test. Compare to gamer and average population benchmarks.
Methodology: Our testing methodology uses browser PointerEvent and performance.now() signals. Tests measure browser-level event frequency.
About: HardwareTest provides free browser-based checks. Raw pointer paths stay in your browser; aggregate product analytics may record tool usage.
Disclaimer: This tool measures browser-level polling rates, which may differ from hardware-level rates. For precise measurements, manufacturer tools or USB analyzers may be needed.
Understand Hz, stability, and input latency.
If a refresh rate test reports 60Hz on a 144Hz or 240Hz monitor, check OS settings, cable limits, browser throttling, VRR, duplicated displays, and power mode.
Mouse polling rate tests can jump between values because of movement speed, DPI, browser event delivery, wireless mode, CPU load, and USB power settings.
If a browser gamepad tester does not detect an Xbox, PlayStation, Switch, or generic controller, check connection mode, browser support, focus, permissions, and Steam input.
If an online microphone test cannot hear you, check browser permissions, the selected input device, OS privacy settings, exclusive mode, Bluetooth headset profiles, and HTTPS.
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.
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.