How to Overclock a Monitor: A Safe, Step-by-Step Tutorial

You can overclock a monitor by adding a custom refresh-rate mode through your graphics software and testing it. It works only if the monitor, graphics card, connection, and chosen resolution support the higher rate. First check Windows: your display’s rated maximum may already be available, so no overclock is needed.

What monitor overclocking changes

Refresh rate, measured in hertz (Hz), is how often a screen updates its image each second. A custom mode asks the monitor to run faster than a listed mode; it cannot add pixels or change the panel’s native resolution. An unsupported rate can cause flickering, artifacts, a lost signal, or a blank screen. No universal increase is guaranteed.

Open Settings > System > Display > Advanced display and select the monitor. Note its resolution and current rate. Microsoft’s refresh-rate guide explains that available rates depend on the display and its supported modes.

Before you start

• Check the monitor manual or manufacturer specifications for native resolution and rated maximum refresh rate.
• Keep native resolution, select the correct display, and record the original setting.
• Raise the rate in small steps. If the driver rejects it or the picture is unstable, revert; know how to restore the default before testing.

Method 1: NVIDIA Control Panel

1. Open NVIDIA Control Panel. Under Display, choose Change resolution and select the monitor.

2. Choose Customize, then Create Custom Resolution.
3. Keep the native pixel values, enter a modestly higher refresh rate, and leave timing options at their defaults unless you understand display timings.
4. Click Test. If the test passes and the screen stays stable, save the mode, select it from the list, and apply it. If it fails or the screen goes blank, revert and try a lower rate.

NVIDIA’s custom-resolution instructions also require testing a mode before saving it.

Method 2: AMD Software: Adrenalin Edition

1. Open AMD Software, search for Custom, and choose Custom Resolution. Select the right display and accept the license prompt if it appears and you want to continue.

2. Choose Create New. Keep the native resolution and enter a modest refresh-rate increase.
3. Click Create. AMD checks compatibility, and the screen may go blank briefly during the check. If AMD reports a problem, revise or cancel the profile.
4. Apply a saved profile through Windows Display settings or an application’s display menu, then confirm the rate in Advanced display.

Names can vary by software version. See AMD’s current Adrenalin custom-resolution guide for its workflow and compatibility check.

Method 3: Custom Resolution Utility (CRU)

CRU is a third-party tool for advanced users. It adds a Windows display override. Use it only if you know how to restore display settings and can start Windows in Safe Mode.

1. Download CRU from the utility author’s Monitor Tests thread, then run CRU.exe.
2. Choose the correct monitor in the drop-down list; the active one is marked (active).
3. Under Detailed resolutions, add a mode at the native resolution with the candidate rate. Keep the original native mode so it remains available.
4. Click OK. Run restart64.exe on 64-bit Windows or restart.exe on 32-bit Windows from the extracted folder.
5. After the graphics driver restarts, select the new rate in Windows Advanced display.

If the display does not return within 15 seconds, press F8 for CRU’s Recovery Mode to temporarily unload the overrides. To remove an override, use CRU’s Delete control for that display, or run reset-all.exe and restart Windows. CRU documents these recovery steps in its thread.

Test the result and revert if needed

Confirm Windows shows the new rate at native resolution. Check the desktop and a game or video for flickering, artifacts, blackouts, or signal drops. If the picture is unstable, return to the last stable rate in Advanced display.

If a confirmation timer appears, keep the setting only while the screen is stable; otherwise let it revert. With CRU, use Recovery Mode or reset the overrides if the display settings are inaccessible. Stop at the manufacturer-rated maximum if custom rates fail. Some monitors accept a small increase; others accept none.