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A 100Hz monitor can show 60Hz because Windows is set to 60Hz, the chosen resolution does not offer a 100Hz mode, or some part of the connection—from the computer’s video output to the monitor’s input—is limiting the signal. Check Windows’ refresh-rate setting first, then verify the exact monitor and connection specifications before changing drivers.
Check the refresh rate Windows has selected
- Open Settings > System > Display > Advanced display.
- If more than one display is connected, select the 100Hz monitor in the display selector.
- Look at the refresh-rate menu. If 100 Hz is available, select it, then confirm the selected display’s readout. Microsoft explains that the page shows the selected display’s current resolution and refresh rate, and that the available rates depend on the display’s supported modes: Change the refresh rate on your monitor in Windows.
A rate marked with an asterisk does not support the current resolution; selecting it may change the resolution. Check the displayed resolution after choosing a mode. A game’s frame-rate counter measures rendered frames, not necessarily the monitor’s active refresh rate. Use Windows’ selected-display readout as one check; if your monitor has a signal-information display, it can provide a separate check, but its controls and labels vary by model.
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Confirm the monitor supports 100Hz at your resolution and input
Find the monitor’s exact model number and consult its manual or manufacturer specifications. Confirm that 100Hz is supported at the resolution you want and on the specific input you are using—such as HDMI, DisplayPort, or USB-C. An advertised maximum does not establish that every resolution or input supports that rate. Windows lists supported modes, but the model’s documentation is needed to establish its input-specific limits. MSI also advises checking the monitor’s connection and selected input when refresh rate or resolution is below expectations: MSI monitor refresh-rate troubleshooting.
Check each part of the connection
The signal path may include the monitor input, the computer or GPU output, a cable, and intermediate equipment such as a dock, adapter, KVM, or receiver. Any of these can affect which display modes are available.
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- CRISP CLARITY: This 23.8″ Philips V line monitor delivers crisp Full HD 1920x1080 visuals. Enjoy movies, shows and videos with remarkable detail
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- Make sure the cable is firmly connected at both ends and that the monitor is set to the input connected to the computer.
- Temporarily remove docks, adapters, KVMs, or receivers and connect the monitor directly to the computer. Use a computer output and monitor input documented to support 100Hz at your chosen resolution.
- If possible, try another supported output on the computer or input on the monitor.
- If the mode is still missing, test with a known-good cable that supports the required resolution and refresh rate. A replacement cable is a diagnostic option, not a guaranteed fix; check the exact ports and mode before choosing one.
- Test the monitor on another system, or test another display on the same computer. These checks can help identify whether the limitation follows the monitor or the computer.
Microsoft recommends checking the cable connection, trying another cable or video output, and testing the monitor with another system when troubleshooting external-display issues: Troubleshoot connection to a wireless display or dock in Windows.
Check the graphics driver if the mode recently disappeared
If 100Hz was available before a driver or system update, investigate the display or graphics driver. Microsoft’s external-display troubleshooting includes rolling back a driver when a problem follows an update and reinstalling it if needed. Follow the computer or GPU manufacturer’s instructions for your specific device. Microsoft also lists Windows key + Ctrl + Shift + B as a way to reset the graphics driver during external-display troubleshooting; it is a troubleshooting step, not a way to make unsupported hardware modes available. See Microsoft’s external-display guidance.
Rank #2
- CRISP CLARITY: This 22 inch class (21.5″ viewable) Philips V line monitor delivers crisp Full HD 1920x1080 visuals. Enjoy movies, shows and videos with remarkable detail
- 100HZ FAST REFRESH RATE: 100Hz brings your favorite movies and video games to life. Stream, binge, and play effortlessly
- SMOOTH ACTION WITH ADAPTIVE-SYNC: Adaptive-Sync technology ensures fluid action sequences and rapid response time. Every frame will be rendered smoothly with crystal clarity and without stutter
- INCREDIBLE CONTRAST: The VA panel produces brighter whites and deeper blacks. You get true-to-life images and more gradients with 16.7 million colors
- THE PERFECT VIEW: The 178/178 degree extra wide viewing angle prevents the shifting of colors when viewed from an offset angle, so you always get consistent colors
Retest the setup and identify what is limiting it
- Reconnect the intended setup and open Settings > System > Display > Advanced display.
- Select the correct monitor, set the intended resolution, and check whether 100Hz appears and is selected.
- If it remains unavailable, note the monitor and computer/GPU models, resolution, monitor input, cable and adapter chain, and the refresh rates Windows lists. These details let the device manufacturer or support team check the precise combination.
There is no established universal ranking of causes for a 100Hz monitor appearing at 60Hz. The supported mode depends on the particular display, source output, resolution, and complete signal path; without those setup details, it is not possible to identify one cause or promise that a particular replacement will resolve it.
Windows version note
Microsoft’s refresh-rate instructions apply to Windows 10 and Windows 11, though labels can vary slightly by build. Microsoft states that Windows 10 support ended on October 14, 2025; the settings path above is most relevant to currently supported Windows installations.
Quick Recap
Best Value
- ELEVATE YOUR EVERYDAY VIEWING EXPERIENCE- The Lenovo L22-4e monitor packs a visual punch with its ergonomic features and excellent visual clarity. Experience zippy loading times, impeccable color accuracy, and great visual fidelity framed in a modern design.
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Rank #4
- VIVID COLORS: Experience stunning colors across the entire display with the IPS panel. Colors remain bright and clear across the screen, even when you change angles. Tones and shades are represented consistently and beautifully with less color washing.
- SMOOTH PERFORMANCE: Stay in the action when playing games, watching videos, or working on creative projects. The 100Hz refresh rate reduces lag and motion blur so you don't miss a thing in fast-paced moments.¹
- MORE GAMING POWER: Gain a competitive edge with optimizable game settings. Color and image contrast can be instantly adjusted to see scenes more clearly, while Game Mode adjusts any game to fill your screen with every detail in view.
- EASY ON THE EYES: Protect your vision and stay comfortable, even during long sessions. Stay focused on your work with reduced blue light and screen flicker.²
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Rank #3
- CURVED FOR ENHANCED ENGAGEMENT: An immersive viewing experience with a curved monitor that wraps more closely around your field of vision; It creates a wider view, enhancing depth perception and minimizing peripheral distraction
- SMOOTH PERFORMANCE FOR SEAMLESS CONTENT: Stay in the action when playing games, watching videos, or working on creative projects; The 100Hz refresh rate reduces lag and motion blur so you don't miss a thing in fast-paced moments¹
- MORE GAMING POWER: Gain the edge with optimizable game settings; Color and image contrast can be adjusted to see scenes more vividly and spot enemies hiding in the dark; Game Mode adjusts any game to fill the screen so you can view every detail²
- KEEP IT EASY ON THE EYES: Care for your eyes and stay comfortable, even during long sessions; Advanced eye comfort technology certified by TÜV reduces eye strain by minimizing blue light and reducing irritating screen flicker²
- INCREASED VERSATILITY: Connect to more; Plug devices straight into your monitor for increased flexibility, making your computing environment even more convenient
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