How to Use MSI Afterburner: Monitoring, Overclocking and Fan Curves Safely

The safest way to use MSI Afterburner is to install it only from the official MSI or Guru3D pages, use it first for monitoring and a custom fan curve, and only then try small, stepwise core and memory offsets or a gentle undervolt. Afterburner is a free utility from MSI that works with graphics cards from many brands, not only MSI cards, and it can show clocks, temperatures, usage and frame rate in an on-screen overlay.

Quick Answer: What Afterburner Does and Does Not Do

Download Afterburner From the Right Place

MSI directs users to its own Afterburner page, and Guru3D, the home of the RivaTuner tools, is the other widely used source. Reference material on the program warns that spoof sites have redistributed the installer in modified form, so avoid mirror and “driver update” sites. If a search for “msi afterburner dow” or “msiburner” lands on an unfamiliar domain, close it and go to the MSI site directly.

As reported by TweakTown, version 4.6.6 became the first stable release in roughly two years, arriving in autumn 2025 and adding support for GeForce RTX 50-series cards, including designs with four fans. The same coverage notes that Radeon RX 9000 support is unofficial, because MSI no longer sells Radeon cards. Beta builds exist for newer features, but a beta is a test build; stay on the stable release unless you need something specific that the beta adds.

The installer bundles RivaTuner Statistics Server (RTSS), which draws the overlay and offers frame-rate limiting. Accept it if you want the on-screen display.

Afterburner, Mystic Light and MSI Center: Not the Same Thing

Many searches for “msi mystic light” end up at Afterburner by mistake. They are separate tools with different jobs.

If you only want lighting control, you do not need Afterburner. If you want to tune a graphics card, you do not need Mystic Light. Download motherboard and lighting utilities from the support page for your exact product on the MSI site, and check the manual for your model for which package applies.

Step 1: Set Up Monitoring Before Changing Anything

Open Afterburner and note the idle temperature, the temperature under a normal gaming session, and the clock speed the card holds. Write these down. Any later change should be compared against this baseline, otherwise it is hard to tell whether a tweak helped.

1. Open Settings with the gear icon, then the Monitoring tab.
2. Select the items to track, such as GPU temperature, GPU usage, core clock, memory clock, power, fan speed and frame rate.
3. For each item, tick the option to show it in the on-screen display.
4. Use the More button on that tab to open the RTSS options, where the overlay position, size and per-application behavior can be adjusted.

Guides report that if the overlay does not show in a game, a common cause is that RTSS is not running in the system tray, or that the game is in exclusive full screen. Trying borderless or windowed mode is a frequent suggestion. Some anti-cheat systems block overlay hooks in certain online games; if a game complains, disable the overlay for that title rather than the whole system.

Step 2: Build a Custom Fan Curve

A custom fan curve is the lowest-risk change in the program. Go to Settings, open the Fan tab, and enable user-defined software automatic fan control. Drag the points on the graph so fan speed rises with temperature, then press Apply in the main window.

One tutorial example uses a gentle climb that reaches full fan speed in the mid-80s Celsius, but treat any published example as a starting point, because cooler design differs between cards. Never set a curve that keeps fans very low at high temperature. Afterburner must remain running in the background for a software fan curve to stay active, so enable the option to start with Windows. Laptop GPUs usually cannot use custom fan curves because the maker sets fan behavior in firmware.

Step 3: Conservative Overclocking

Overclocking is not covered by every warranty, can cause crashes or visual artifacts, and gains on modern cards are typically modest because the card already boosts on its own according to temperature and power headroom. Treat it as optional.

1. Raise the power limit slider if the card allows it. This lets the card hold boost clocks longer.
2. Raise the core clock offset in small steps, then run a demanding game or a stress test for a while.
3. If the game stays stable and no artifacts appear (flickering, odd colors, sparkles), step up again. If it crashes, lower the offset.
4. Change memory offset separately from core offset, so you know which change caused a problem.
5. Save a working configuration to a profile slot.

Only change one setting at a time. Reviewers commonly advise keeping core voltage changes small, if you touch voltage at all. Voltage control must be unlocked in the General tab before it appears, and on many modern cards the voltage slider has limited effect or is locked by the card maker. Leave it alone unless you understand the effect. For RTX 50-series memory offsets, coverage mentions that the ranges and stable values vary by card; do not copy someone else’s number, as every card differs.

Step 4: Undervolt With the Voltage/Frequency Curve

An undervolt aims to hold the same clock speed at lower voltage, which can reduce heat and fan noise. It is often considered safer in spirit than raising power, though a bad undervolt still causes crashes.

1. Open the curve editor with the curve icon or Ctrl+F. The horizontal axis is voltage and the vertical axis is frequency.
2. Pick a target voltage point and the frequency you want at that point.
3. Drag that point to the desired frequency, then flatten the curve to the right of it so the card does not climb to higher voltage.
4. Press Apply in the main window, since curve edits only take effect after that.
5. Run a game for a while. If it crashes, lower the target frequency or raise the voltage point slightly.

OC Scanner: Automated Option

On supported NVIDIA cards, the curve editor includes an OC Scanner. According to MSI’s published guide as summarized by multiple tutorials, you raise the power, temperature and voltage sliders to their maximum values, open the curve editor, then click Scan. Reported run times range from roughly fifteen to thirty minutes. A separate Test option reports a stability confidence level. Automated results are a starting point; confirm them with real games, and fall back to the saved stock profile if anything misbehaves.

Pick the Approach That Fits You

Alternatives to Afterburner

• Maker utilities: ASUS GPU Tweak, Gigabyte Control Center and EVGA-style tools in older generations offer similar controls tied to a specific brand.
• AMD Software: Adrenalin Edition: Radeon cards include built-in tuning for clocks, fan and power, so Afterburner is optional there. This is useful given Afterburner’s Radeon RX 9000 support is described as unofficial.
• NVIDIA app: NVIDIA’s own application provides an overlay and some performance features for GeForce owners, with less manual tuning than Afterburner.

Troubleshooting Common Problems

If a card shows persistent artifacts at stock settings, or fans fail to spin, stop tuning and contact the card maker or a qualified technician. Power off and unplug the PC before touching any hardware.

Frequently Asked Questions

Is MSI Afterburner safe?

The official program is widely used and the monitoring and fan features are low risk. Overclocking and voltage changes carry real risks such as instability and possible warranty issues, so keep changes small and reversible. Download it only from MSI or Guru3D.

Do I need an MSI graphics card to use it?

No. Afterburner works with cards from many brands. Support depends on the GPU generation and driver, so very new architectures may need a recent release or beta, as happened with RTX 50-series cards.

Do I need RTSS?

RTSS is not required for tuning, but it draws the on-screen overlay and provides frame limiting. If you only want fan curves and offsets, you can skip it during install.

Is Mystic Light part of Afterburner?

No. Mystic Light controls RGB lighting on MSI products and is delivered through MSI Center. Afterburner handles GPU tuning and monitoring only, so install each one for its own purpose.

Will overclocking void my warranty?

Policies differ by brand and region, so read your card maker’s warranty terms. Some makers market factory-overclocked models while excluding damage from user changes. When in doubt, contact the maker before tuning.