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Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteThe ASUS ROG Swift OLED PG27AQDM is already a fast 27-inch 1440p OLED monitor, but many owners still experiment with Custom Resolution Utility to fine-tune refresh rates, timings, and display behavior beyond the default EDID options. CRU can be useful for testing small refresh-rate increases, cleaning up resolution lists, adjusting blanking intervals, or troubleshooting handshake issues with specific GPUs and drivers.
Refresh-rate overclocking on this display should be approached as experimentation, not a guaranteed upgrade. Panel variance, firmware version, cable quality, GPU driver behavior, DSC handling, and VRR settings can all affect whether a custom mode works reliably or fails with black screens, flicker, frame skipping, or driver resets.
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This owners-thread style guide focuses on practical setup, validation, recovery, and OLED-specific caution so PG27AQDM users can test changes methodically while keeping a stable fallback path. The goal is to make CRU adjustments reversible, measurable, and safe for daily use.
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The ASUS ROG Swift OLED PG27AQDM is a 27-inch WOLED gaming monitor with a 2560×1440 native resolution, a factory-rated 240 Hz maximum refresh rate, and a very fast pixel response profile compared with LCD panels. It uses a matte OLED panel, supports adaptive sync operation, and is commonly paired with DisplayPort for full-bandwidth high-refresh use. For CRU experiments, the baseline target is not to “unlock” a hidden mode the monitor was designed around, but to see whether a specific unit, GPU, cable, and driver combination can accept slightly higher or cleaner timings than the stock EDID exposes.
#1 Best Overall
- Immersive QHD OLED Display: 26.5-inch QHD (2560 x 1440) OLED gaming monitor with 240 Hz refresh rate for immersive gaming
- Advanced Heat Management: Highly efficient custom heatsink, plus intelligent voltage optimization for better heat management to reduce the risk of burn-in
- Anti-Glare Coating: Anti-glare micro-texture coating reduces reflections for accurate colors and better viewing experiences
- Exceptional HDR Performance: Ultrafast 0.03 ms response time, plus the darkest black hues, high perceptual 1000 nits peak brightness (3% of the screen with HDR on), 99% DCI-P3 gamut, and Delta E < 2 color difference for astonishing HDR performance
- Smooth Gaming Technology: G-Sync compatible technology delivers seamless, tear-free gaming; and optional uniform brightness setting ensures consistent luminance levels
Owners should treat the PG27AQDM as a 1440p 240 Hz monitor first. Refresh-rate overclocking above 240 Hz is not guaranteed, may fail immediately, may introduce frame skipping, or may work only with reduced blanking timings. Some samples may accept small increases such as 241–250 Hz, while others may reject anything above the advertised ceiling. Large jumps are unrealistic because the panel driving electronics, scaler behavior, link bandwidth, and firmware limits all matter. Even if Windows lists a custom mode, that does not prove the panel is displaying every frame correctly.
Core specifications to keep in mind
| Item | PG27AQDM baseline | CRU relevance |
|---|---|---|
| Resolution | 2560×1440 | Custom modes should usually keep native resolution for clean scaling and lowest uncertainty. |
| Rated refresh rate | 240 Hz | This is the reliable target; anything above it is experimental. |
| Panel type | OLED | Static test patterns and repeated bright screens need extra care. |
| Preferred input | DisplayPort | Best choice for high refresh, VRR, and timing experiments. |
| Adaptive sync | Supported | Custom timings can affect VRR range detection and behavior. |
Firmware matters because ASUS has revised behavior on this model over time, including brightness handling, HDR behavior, and OLED care features. Before editing EDID data with CRU, check the monitor OSD for the current firmware version and compare it with the latest package on the ASUS support page for the PG27AQDM. Do not update firmware in the middle of troubleshooting several CRU changes at once; update first, confirm the monitor works normally at stock 240 Hz, then begin testing custom modes from a known-good state.
Set expectations around the entire signal chain. A high-quality DisplayPort cable, a modern GPU, current AMD/NVIDIA/Intel graphics drivers, and a clean monitor driver state all influence results. GPU control panels may expose different options depending on whether DSC, 10-bit color, HDR, VRR, or mulle monitors are active. If a custom refresh rate works only with 8-bit color, SDR, VRR disabled, or a single-display setup, that is still a valid data point rather than a failure of CRU itself.
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Repair Windows errors before they cause bigger problemsFix Now →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →A sensible owner-thread approach is to document each change in small steps: firmware version, GPU model, driver version, cable used, port used, color depth, HDR state, VRR state, CRU timing preset, and the exact refresh rate attempted. This makes it much easier to compare results with other PG27AQDM owners and to roll back when a mode causes a black screen or driver reset. The safest expectation is modest experimentation around the stock 240 Hz mode, with stability and correct frame delivery valued more than a higher number in the Windows refresh-rate menu.
Tools, Drivers, and Backup Preparation
Before editing anything in Custom Resolution Utility, get the PG27AQDM into a known-good state and collect the tools needed to recover quickly if a custom mode fails. The monitor is already a high-refresh OLED panel, so CRU work should be treated as controlled testing rather than a set-and-forget tweak. Use a direct DisplayPort connection from the GPU to the monitor, avoid adapters during setup, and disconnect secondary displays if they complicate boot behavior or make Windows choose the wrong screen after a failed timing.
Start by updating the basics. Install the latest stable NVIDIA or AMD graphics driver, then reboot before opening CRU. If you have recently swapped GPUs or moved between driver branches, use a clean driver installation option or a tool such as Display Driver Uninstaller in Safe Mode if the system has persistent display detection problems. Check the ASUS support page for the PG27AQDM firmware and apply only the firmware intended for your exact model and region. After firmware updates, power-cycle the monitor fully by turning it off and removing power briefly, then re-check that Windows reports the native 2560×1440 mode and expected refresh options.
Recommended toolkit
- Custom Resolution Utility: CRU by ToastyX, plus the included restart64.exe and reset-all.exe utilities.
- GPU control panel: NVIDIA Control Panel or AMD Software for checking available refresh rates, color depth, scaling, VRR, and output format.
- Display testing pages: TestUFO for frame skipping, motion cadence, and browser-based refresh confirmation.
- Monitoring tools: HWiNFO, GPU-Z, or vendor overlays to watch GPU clocks, link behavior, and driver recovery events.
- Recovery access: A second monitor, HDMI cable, remote desktop session, or Windows Safe Mode plan in case the main display goes black.
Make a backup before changing EDID data. In CRU, select the PG27AQDM from the display drop-down, confirm it is the active monitor and not a generic mirrored entry, then choose Export and save the original configuration with a clear name such as PG27AQDM-stock-edid.bin. Keep a second copy somewhere easy to access, not just on the desktop of a PC that may boot to a blank screen. This original file gives you a clean baseline if custom detailed resolutions, extension blocks, or range limits need to be reversed.
Rank #2
- World's First 1440P 480Hz OLED Gaming Monitor: Experience unprecedented gaming performance with the industry's first 1440P resolution OLED display running at an incredible 480Hz refresh rate
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- Exclusive Gaming AI Assistant: Advanced AI technology helps you better navigate your gaming experience with intelligent features and optimizations
- ROG OLED Anti-Flicker Technology: Exclusive technology helps reduce the flicker during refresh rate fluctuations for more comfortable extended gaming sessions
- Superior Color Accuracy and HDR Performance: 99% DCI-P3 color gamut coverage and Delta E <2 color difference deliver astonishing HDR performance with true-to-life colors
It is also worth recording the current Windows and driver settings before experimentation. the native resolution, refresh rate, HDR state, color depth, RGB or YCbCr output, G-SYNC Compatible or FreeSync status, and whether Display Stream Compression is being used implicitly at high refresh rates. Screenshots of the Windows Advanced Display page and GPU control panel are enough. If a custom mode later causes flicker, missing HDR, VRR oddities, or a black screen, these records help separate a timing problem from a driver setting that changed during troubleshooting.
Prepare a safe rollback path. The CRU package includes restart64.exe, which restarts the graphics driver after edits, and reset-all.exe, which removes CRU overrides and returns displays to their default EDID data after a reboot. Keep both files in a known folder and, if possible, pin that folder in File Explorer. If a new mode produces no signal, wait for Windows to revert if the change was made through display settings. If it does not recover, boot into Safe Mode or connect another display, run reset-all.exe, restart the PC, and confirm the PG27AQDM is back to stock behavior before attempting smaller changes.
Creating Custom Resolutions with CRU
Custom Resolution Utility changes the EDID data that Windows and the GPU driver read from the PG27AQDM. For this monitor, the usual goal is not to invent unusual aspect ratios, but to test whether the panel and link can accept a slightly higher refresh-rate mode at the native 2560 × 1440 resolution. Work in small steps, keep the factory modes intact, and make only one or two changes before rebooting or restarting the graphics driver.
Open CRU.exe and select the ASUS ROG Swift OLED PG27AQDM from the display drop-down. If you see mulle entries, choose the active one connected through DisplayPort, then confirm it matches the monitor name and native resolution. In the main CRU window, leave the established and standard resolution areas alone unless you have a specific compatibility issue. Most PG27AQDM refresh-rate work should be done under Detailed resolutions or inside the extension block, depending on where the native 1440p high-refresh modes are listed.
Adding a native 1440p custom mode
- Under Detailed resolutions, click Add. If the native 2560 × 1440 mode is already present, you can select it and use Copy to duplicate its baseline structure.
- Set the resolution to 2560 horizontal and 1440 vertical.
- For timing, start with Automatic (PC) or CVT-RB2. Reduced blanking is usually preferred because it keeps pixel clock demands lower than old-style timing formulas.
- Enter a conservative refresh rate first, such as 241 Hz, 245 Hz, or 250 Hz. Do not jump straight to an aggressive value unless you already have a known-good profile from your exact GPU, cable, firmware, and driver combination.
- Click OK, then move the new mode to the top of the detailed resolution list if you want Windows to prefer it.
- Click OK in the main CRU window, then run restart64.exe from the CRU folder to restart the graphics driver.
After the driver restarts, open Windows display settings or the NVIDIA/AMD control panel and check whether the new refresh rate appears. Select the custom mode only after closing full-screen games, video playback, and color calibration tools. If the screen blanks and does not recover, wait for Windows to revert, use the keyboard shortcut to change displays, or boot into Safe Mode and run reset-all.exe from the CRU package.
Timing fields to adjust carefully
If the mode appears but behaves poorly, adjust timings rather than only raising or lowering refresh rate. The useful fields are the front porch, sync width, back porch, total pixels, and pixel clock. With reduced blanking, small changes to vertical total can affect scanout behavior and link bandwidth. Keep edits minimal: change one timing preset or one refresh step, apply it, then test. Random timing combinations can create black screens, unstable wake-from-sleep behavior, missing VRR ranges, or modes that exist in Windows but fail when a game switches to exclusive full screen.
| Setting | Practical starting point | What to watch |
|---|---|---|
| Resolution | 2560 × 1440 | Use native resolution for serious OC testing |
| Timing preset | Automatic (PC) or CVT-RB2 | Lower blanking can reduce pixel clock pressure |
| Refresh increments | 1–5 Hz at a time | Large jumps make failures harder to isolate |
| Extension block | Leave intact unless needed | Incorrect edits may affect HDR, audio, VRR, or DSC behavior |
For many owners, the cleanest approach is to create several test modes, such as 241 Hz, 245 Hz, and 250 Hz, then validate each one before trying the next. If a mode causes flicker, intermittent signal loss, driver timeout, HDR oddities, or VRR glitches, delete it rather than forcing it for daily use. A custom refresh rate is only useful if it survives desktop use, sleep and wake, game launches, HDR switching, and repeated cold boots without extra steps.
Rank #3
- High-Performance QHD OLED Display: 26.5-inch QHD (2560 x 1440) TrueBlack Glossy WOLED gaming monitor with 240 Hz refresh rate and 0.03ms response time
- Advanced OLED Protection Technology: ASUS OLED Care Pro functions with Neo Proximity Sensor that precisely detects when the user is away, switching to a black screen to reduce the risk of burn-in
- Exceptional HDR and Color Accuracy: VESA DisplayHDR 400 True Black compliance, 99% DCI-P3 gamut, true 10-bit color, and Delta E < 2 color difference for astonishing HDR performance
- Intuitive Monitor Control Software: Exclusive ASUS DisplayWidget Center application allows users to easily access OLED Care Pro functions and adjust monitor settings using a mouse
- AI-Enhanced Gaming Features: ROG Gaming A.I technology with AI-powered features to enhance users' gaming experience
Testing Refresh Rates, Timings, and Stability
After adding a custom resolution in CRU and restarting the graphics driver, treat the first boot into a new refresh rate as a screening pass, not proof of stability. On the ASUS ROG Swift OLED PG27AQDM, the stock target is already 2560×1440 at 240 Hz, so most CRU experimentation is about small refresh-rate increases, alternate blanking values, or cleaner timing behavior rather than huge gains. Increase in small steps, such as 241 Hz, 245 Hz, 250 Hz, then higher only if each step behaves normally. If the display shows no signal, flashes repeatedly, or falls back to a lower mode, wait for Windows to revert or use a secondary display to select a known-good mode.
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Start validation in Windows Display Settings or the NVIDIA/AMD control panel by confirming the active desktop mode, refresh rate, color depth, and output format. For a PG27AQDM connected over DisplayPort, also check whether 10-bit color, HDR, VRR, and DSC-related behavior change when the custom mode is selected. A mode that works at 8-bit SDR may fail at 10-bit HDR because the required bandwidth changes. Keep one baseline profile at the factory 240 Hz mode so you can quickly compare motion, brightness behavior, VRR range, and black-screen recovery.
Practical test sequence
- Desktop check: move windows, open the Start menu, switch between SDR and HDR, and leave the desktop idle for several minutes. Watch for flicker, brief signal drops, scanlines, or color corruption.
- Browser motion test: use a frame-skipping test such as TestUFO in a supported browser. Photograph the moving squares with a slow shutter if possible; skipped frames usually show as uneven gaps.
- Game engine test: run a familiar game that can hold frame rates near the target refresh. Test exclusive fullscreen, borderless fullscreen, VRR on, and VRR off.
- Alt-tab and wake test: alt-tab repeatedly, let the monitor sleep, wake it again, and reboot once. Many unstable timings only fail during link retraining.
- Extended session: play or loop a demanding scene for 30–60 minutes while checking for signal drops, audio device resets, or driver recovery messages.
When tuning timings, change only one variable at a time. If you are using CRU’s automatic PC timings, document the pixel clock and compare it with CVT-RB or manual reduced-blanking attempts. Lower blanking can reduce bandwidth, but values that are too aggressive may produce intermittent black screens even if the mode initially applies. A useful owners-thread habit is to post the full timing block: active pixels, front porch, sync width, back porch, total pixels, refresh rate, and pixel clock. “It works at 250 Hz” is less helpful than a complete timing snapshot that another owner can reproduce.
| Symptom | Likely area to check | Next adjustment |
|---|---|---|
| Immediate no signal | Pixel clock, DSC bandwidth, unsupported timing | Lower refresh rate or restore automatic timing |
| Random black blink | Marginal blanking or link retraining | Add blanking, reduce refresh by 1–2 Hz |
| Frame skipping | Mode accepted but not displayed cleanly | Try a different timing standard or lower refresh |
| HDR fails but SDR works | Bandwidth increase from bit depth or format | Test 8-bit, 10-bit, RGB, and YCbCr options separately |
A custom mode is suitable for daily use only if it survives normal desktop use, gaming, sleep/wake, HDR switching, and VRR without intervention. Do not judge stability from a single benchmark run. If the monitor requires power cycling, the GPU driver resets, or Windows occasionally boots to a black screen, back down to the last clean refresh rate. For many PG27AQDM owners, a slightly lower but repeatable custom mode is preferable to a headline number that disrupts daily use.
Common Problems: Black Screens, DSC, VRR, and Driver Resets
Most PG27AQDM CRU overclocking failures show up in a few predictable ways: a black screen after applying a custom mode, intermittent signal drops, refresh rates missing from Windows, VRR flicker, or a GPU driver reset under load. Treat these as configuration symptoms first, not as proof that the panel is damaged. The safest recovery path is to revert the last CRU change, restart the graphics driver with restart64.exe, and if the display remains unusable, boot into Safe Mode or connect a second monitor and run reset-all.exe from the CRU folder.
Black screens usually mean the timing, bandwidth, or link training failed. On the PG27AQDM, DisplayPort is the preferred connection for high-refresh operation, and a marginal cable can behave normally at stock settings but fail once timings are tightened or refresh is raised. Use the supplied cable or a certified high-quality DisplayPort cable, avoid adapters, and test one change at a time. If the monitor loses signal immediately after selecting the new refresh rate, lower the refresh target, return to a known-good detailed resolution, or try less aggressive blanking values. If the screen returns after a few seconds, check whether Windows silently reverted to the previous mode.
Fast recovery checklist
- No signal after applying a mode: wait 15 seconds for Windows to revert, then select the previous refresh rate if the desktop returns.
- Persistent black screen: power-cycle the monitor, reconnect DisplayPort, then restart the GPU driver with CRU’s restart tool.
- Still unusable: boot Safe Mode or use a second display, run CRU’s reset tool, and reboot.
- Mode missing in Windows: confirm the custom resolution is under the active display entry in CRU, not a ghost entry.
- Random dropouts: reduce refresh rate, undo reduced blanking tweaks, and test another DisplayPort cable or GPU port.
DSC-related issues can be harder to identify because the image may appear normal until a game changes resolution, HDR state, color depth, or refresh rate. Display Stream Compression is commonly involved when bandwidth requirements exceed what the raw link can carry, especially at high refresh with 10-bit color or HDR. If a custom mode works on the desktop but fails in games, test with 8-bit SDR first, then re-enable 10-bit or HDR after stability is proven. Also check the NVIDIA Control Panel or AMD Software for output color depth, RGB versus YCbCr, and full versus limited range, since these settings can change the bandwidth demand.
Rank #4
- Immersive QHD OLED Display: 26.5-inch QHD (2560 x 1440) glossy WOLED gaming monitor with 240 Hz refresh rate and 0.03 ms response time for immersive gaming
- Advanced Cooling and OLED Protection: Highly efficient custom heatsink, advanced airflow design, and ASUS OLED Care functions to reduce the risk of burn-in
- ROG OLED Anti-flicker Technology: ROG-exclusive OLED Anti-flicker technology helps reduce the flicker during refresh-rate fluctuations
- Third-Generation WOLED Panel: Third-generation WOLED technology provides brighter full white windows, clearer text, and improved motion clarity
- Uniform Brightness Setting: Optional uniform brightness setting ensures consistent luminance levels across the display
VRR problems are typically seen as flicker near the low end of the refresh range, stutter during frame-rate swings, or black flashes when entering exclusive fullscreen. OLED panels can make brightness fluctuations more noticeable when frame pacing is uneven. For testing, disable G-SYNC Compatible or FreeSync first and confirm the custom fixed refresh rate is stable. Then re-enable VRR and test with a frame cap a few FPS below the maximum refresh, such as 237 FPS for 240 Hz or slightly below whatever custom ceiling you are validating. If flicker is only present in menus or loading screens with wildly fluctuating FPS, a per-game frame cap is often cleaner than changing the global monitor configuration.
Driver resets, timeout detection events, or game crashes under a new CRU mode usually point to an unstable combination rather than a bad installation. Update the GPU driver, but also keep a known-good driver installer available in case a new release changes display behavior. Avoid stacking several variables at once: do not raise refresh, enable HDR, switch to 10-bit, alter VRR, and undervolt the GPU in the same test pass. Establish a baseline at stock 2560×1440 and 240 Hz, then add one change and test it with desktop use, video playback, a borderless game, an exclusive fullscreen game, and sleep/wake. A custom mode that survives only a five-minute desktop check should not be considered daily-use stable.
OLED-Specific Safety, Burn-In, and Daily-Use Recommendations
The PG27AQDM’s WOLED panel can look excellent at high refresh rates, but refresh overclocking should be treated separately from OLED care. A stable CRU mode does not make static desktop use safer, and an unstable mode can make protection features harder to notice if the display is frequently black-screening or reconnecting. After any CRU change, confirm that the monitor’s OLED protection functions still run normally, the on-screen display is accessible, and Windows is not repeatedly reinitializing the panel during idle or sleep transitions.
For daily use, avoid leaving bright static elements on screen for long periods. This includes white browser toolbars, taskbars, HUDs, spreadsheets, chat windows, IDE sidebars, and monitoring overlays. Set the Windows taskbar to auto-hide, use dark themes where practical, rotate wallpapers, and let the display sleep when inactive. If you use the PG27AQDM for productivity, consider lowering SDR brightness instead of running the panel near maximum luminance all day. Many owners find a moderate SDR brightness setting more comfortable and less aggressive for static desktop work, then switch to higher brightness or HDR only when gaming or watching video.
Recommended daily settings and habits
- Use automatic sleep: Set Windows to turn off the display after a short idle period, such as 5 to 10 minutes.
- Keep pixel maintenance enabled: Allow the monitor to run its compensation and pixel-cleaning cycles when prompted or after extended use.
- Hide static UI: Auto-hide the taskbar, disable always-on desktop widgets, and avoid fixed white windows in the same position every day.
- Limit unnecessary overlays: FPS counters, hardware monitors, crosshairs, and streaming overlays should be moved periodically or disabled when not needed.
- Use sensible brightness: For SDR desktop use, choose a comfortable level rather than maximum output. Reserve high brightness for short gaming or media sessions.
- Let standby complete: Do not constantly cut power at the wall immediately after use; the monitor may need standby time for maintenance routines.
When testing overclocked refresh rates, use full-screen motion tests, games, and desktop scenarios, but do not leave static test images paused for extended periods. Test patterns with high-contrast grids, fixed logos, or bright borders are useful for finding scanline artifacts, flicker, and scaling issues, yet they are also among the least friendly patterns for an OLED panel if left running. Keep test sessions purposeful: check the mode, observe for artifacts, record the result, then return to normal mixed content or let the screen sleep.
VRR and HDR also deserve attention. If an overclocked mode causes VRR flicker, unstable brightness shifts, or repeated HDR handshake events, it may be better to use the stock 240 Hz mode for daily gaming and keep experimental modes as temporary profiles. OLED near-black flicker can be more noticeable with variable frame rates, especially in dark game scenes, menus, and loading screens. A slightly lower but stable refresh rate with clean VRR behavior is usually preferable to a higher number that introduces flicker, black flashes, or driver resets.
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1Fix the driver behind crashes, sound loss and screen glitches2Repair Windows errors before they cause bigger problems3Scan for outdated or missing drivers - takes under a minuteIf you see image retention after a long desktop or gaming session, switch to varied content, lower brightness, and allow the monitor’s normal maintenance cycle to run. Temporary retention is not the same as permanent burn-in, but repeated exposure to the same static layout increases risk over time. The safest long-term approach is simple: use CRU conservatively, keep at least one known-good stock mode available, avoid static high-brightness content, and allow the PG27AQDM’s built-in OLED care features to do their job.
Best Value
- High-Performance Display Specifications: 26.5-inch 4K (3840 x 2160) QD-OLED gaming monitor with 240Hz refresh rate and 0.03ms response time
- Advanced QD-OLED Technology: Latest 4th-gen QD-OLED technology delivers sharper imagery and crystal-clear text, a longer lifespan over previous-gen OLEDs
- Enhanced Viewing Comfort: OLED Anti-Flicker 2.0 technology includes a new luminance compensation algorithm that reduces flicker by 20% compared to previous-gen panels, ensuring comfortable viewing
- Intelligent Burn-In Protection: New ASUS OLED Care Pro functions with Neo Proximity Sensor that precisely detects when the user is away, switching to a black screen to reduce the risk of burn-in
- Comprehensive Connectivity Options: Extensive connectivity options include DisplayPort 2.1a UHBR20 with full 80Gbps bandwidth, USB-C (90W PD), HDMI 2.1, and a tripod socket
Frequently Asked Questions
How high can the ASUS ROG Swift OLED PG27AQDM realistically overclock with CRU?
Most owners should treat 240 Hz as the reliable target, since that is the panel’s rated refresh rate. Some systems may accept custom modes slightly above 240 Hz, but success depends on GPU, driver, cable, firmware, and timing parameters. If a mode applies but causes flicker, scanlines, black screens, or frame skipping, it is not a stable daily-use overclock.
What should I back up before changing PG27AQDM timings in CRU?
Before editing anything, export your current CRU profile so you can restore the monitor’s original EDID settings. It is also smart to create a Windows restore point and keep CRU’s reset-all.exe available in case the display goes black after reboot. If you are testing aggressive refresh rates, have a second monitor or remote access ready so you can recover without guessing blindly.
Which CRU timing settings should I try first for a custom refresh rate?
Start by duplicating the monitor’s native 2560×1440 mode and making only small refresh-rate changes rather than editing many values at once. Use automatic PC timings first, then test reduced blanking only if the mode fails or bandwidth appears to be the issue. After each change, restart the graphics driver with restart64.exe and verify the mode in Windows, the GPU control panel, and a frame-skipping test.
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How do I know if a custom refresh rate is actually stable?
A stable mode should pass a frame-skipping test, run games without intermittent black screens, and survive sleep/wake cycles, alt-tabbing, and VRR usage. You should also check for flicker, brightness pulsing, scanlines, or random driver resets during longer gaming sessions. If the refresh rate only works on the desktop but fails in fullscreen games, it is not stable enough for normal use.
Can CRU overclocking increase burn-in risk on the PG27AQDM?
The refresh-rate change itself is usually not the main burn-in risk; static high-brightness content is. However, testing custom modes often means leaving test patterns, desktop elements, or monitoring overlays on screen for long periods, which is bad practice on OLED. Keep brightness reasonable, use pixel cleaning features as intended, hide static taskbars when possible, and avoid leaving test screens or HUD-heavy games paused for extended periods.
Bottom Line
The ASUS ROG Swift OLED PG27AQDM can be a rewarding panel to tweak with CRU, but refresh-rate overclocking and timing changes should be treated as careful experimentation rather than guaranteed free performance. Make one change at a time, keep a known-good profile handy, and validate with real gameplay, frame-skipping tests, and long stability checks before calling a setting daily-driver ready.
Your best next step is to document your current working timings, create a safe restore path, then test small increments while watching for black screens, scanlines, flicker, dropouts, or OLED-specific heat and retention concerns. If a tweak is not clearly stable or useful, roll back and prioritize the PG27AQDM’s image quality, latency, and long-term panel health over chasing a number.
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