MSI Afterburner OC Scanner Explained

MSI Afterburner is a renowned tool among PC enthusiasts and gamers, primarily for its ability to fine-tune and overclock graphics processing units (GPUs). This potent software allows users to push their hardware beyond its factory settings, potentially leading to significant performance gains in demanding applications and games. However, a common point of confusion for many users revolves around the "OC Scanner" feature. Does MSI Afterburner actually possess an OC Scanner button? How does one unlock it, and what exactly does it do? This article aims to demystify these questions, providing a clear understanding of overclocking, GPU behaviour, and the role of MSI Afterburner in the process.

What is MSI Afterburner?

Before delving into the specifics of the OC Scanner, it's essential to understand what MSI Afterburner is. Developed by MSI, a leading manufacturer of computer hardware, this software is a versatile utility that provides comprehensive control over your graphics card. It allows for detailed monitoring of key performance metrics such as GPU clock speed, memory clock, temperature, fan speed, and voltage. More importantly, it enables users to adjust these parameters to achieve higher performance, often referred to as overclocking.

Understanding GPU Boosting

Modern graphics cards, especially those based on NVIDIA's Turing architecture (like the RTX 2060 SUPER mentioned in user queries), do not operate on a single, fixed clock speed. Instead, they employ a technology known as GPU Boost. This dynamic system allows the GPU to automatically increase its clock speed above the base clock, as long as it remains within the defined power, thermal, and voltage limits. This means you might observe different boost clock speeds depending on the game or application you're running, as well as environmental factors like ambient temperature. A card will only truly be overclocked if you manually set an overclock in Afterburner, apply it, and save it to a profile.

The MSI Afterburner OC Scanner: Does it Exist?

This is where much of the user confusion lies. While MSI Afterburner is an exceptional overclocking tool, it does not natively include a dedicated "OC Scanner button" in the same way some other overclocking utilities might. The concept of an "OC Scanner" generally refers to an automated tool that tests various overclocking settings to find the optimal stable configuration for your specific GPU. MSI Afterburner's approach to overclocking is more manual, giving the user direct control over the voltage, core clock, and memory clock adjustments.

However, this doesn't mean MSI Afterburner is devoid of automated assistance. The software does allow for voltage and power limit adjustments, which are crucial components of overclocking. Users can incrementally increase the core clock and memory clock speeds while monitoring stability and temperature. For those seeking a more automated approach, it's important to note that some third-party tools or specific GPU manufacturer software might integrate an OC scanner. Furthermore, the beta versions of MSI Afterburner have, at times, experimented with or included features that could be interpreted as automated scanning, but these are not standard, consistently present "OC Scanner buttons" in the main releases.

Troubleshooting: OC Scanner Not Showing Up

The user query regarding the OC scanner not showing up on a GIGABYTE RTX 2060 SUPER SUPER OC WINDFORCE is a common one, directly related to the fact that a dedicated "OC Scanner button" isn't a standard feature. If you're looking for such a button and it's not appearing, it's likely because it's not part of the standard interface. The latest beta releases can sometimes introduce experimental features, but users should be aware that these might be unstable or not fully implemented. For compatibility, most NVIDIA GeForce cards, including the RTX 2060 SUPER, are generally well-supported by MSI Afterburner. The issue of a missing OC scanner is more about the software's design than a hardware incompatibility or missing component.

The OC Curve: Understanding GPU Behaviour

Another aspect of MSI Afterburner that users often inquire about is the "OC curve," or more accurately, the voltage-frequency curve. While the provided user snippet mentions "OC curve," it seems to conflate this with the dynamic nature of GPU Boost. MSI Afterburner does allow users to directly manipulate the voltage-frequency curve. This curve dictates the relationship between the GPU's voltage and its clock speed. By adjusting this curve, advanced users can define specific voltage-frequency points, potentially allowing for higher stable clock speeds at lower voltages, or vice versa. This offers a much more granular level of control than a simple "OC Scanner" might provide.

To access and modify the voltage-frequency curve:

1. Open MSI Afterburner.
2. Press Ctrl + F. This will open the Voltage/Frequency curve editor.
3. You can then click and drag points on the curve to adjust the voltage and frequency. Be cautious when making these adjustments, as incorrect settings can lead to instability or, in extreme cases, hardware damage.

It's crucial to understand that the GPU's automatic boosting behaviour (as described earlier) is influenced by this curve, along with power and thermal limits. High ambient temperatures, as mentioned in the user example (30 degrees Celsius), can indeed lead to higher GPU temperatures (e.g., 80C). While 80C is warm, it's generally within acceptable operating parameters for many GPUs, especially under load and in warmer environments. Most manufacturers design their cards to operate safely up to around 83-85C before throttling performance. Significant concern usually arises if temperatures consistently exceed 85C.

How to Manually Overclock with MSI Afterburner

Since MSI Afterburner relies on manual adjustments for overclocking, here's a general guide:

1. Monitoring and Baseline

Before making any changes, use MSI Afterburner to monitor your GPU's performance at stock settings. Play a demanding game or run a benchmark and note down the core clock, memory clock, temperatures, and fan speeds. This will be your baseline.

2. Adjusting Power and Temperature Limits

The first step in overclocking is often to unlock and increase the power limit and temperature limit sliders. This gives your GPU more headroom to boost higher. You can usually unlock these by going into MSI Afterburner's settings (the gear icon) and checking "Unlock voltage control" and "Unlock voltage monitoring," and then applying those settings. On the main interface, find the "Power Limit" and "Temp Limit" sliders and move them to their maximum values.

3. Core Clock Overclocking

Next, focus on the core clock. Increase the "Core Clock" slider incrementally, perhaps by +50MHz or +100MHz at a time. After each increase, apply the changes and run a benchmark or play a game for a short period to test stability. Watch for artifacts (visual glitches), crashes, or unexpected shutdowns. If the system remains stable, continue increasing the core clock. If you encounter issues, reduce the clock speed slightly.

4. Memory Clock Overclocking

Once you've found a stable core clock, you can move on to the memory clock. Similar to the core clock, increase the "Memory Clock" slider in small increments (e.g., +100MHz or +200MHz). Apply and test for stability. Memory overclocks can sometimes cause different types of artifacts or crashes than core clock instability.

5. Stability Testing

Thorough stability testing is crucial. Use demanding benchmarking software like 3DMark, Unigine Heaven or Superposition, or simply play your most graphically intensive games for extended periods (e.g., 30 minutes to an hour). Monitor temperatures closely throughout. If your card reaches temperatures consistently above 85C, you may need to adjust your fan curve or reduce your overclock.

6. Saving Profiles

Once you find a stable overclock, save it to one of the numbered profile slots in MSI Afterburner. You can then set this profile as the default for 3D applications by clicking the "Apply" button or the Windows icon to have it load on startup.

Key Takeaways

• MSI Afterburner does not feature a dedicated "OC Scanner button" in its standard releases.
• Modern GPUs use GPU Boost technology, dynamically adjusting clock speeds.
• Overclocking in MSI Afterburner is primarily a manual process involving adjusting core clock, memory clock, voltage, and power limits.
• The voltage-frequency curve can be accessed via Ctrl + F for advanced control.
• Monitor temperatures carefully; consistently high temperatures (above 85C) warrant caution.
• Thorough stability testing is essential after making any adjustments.

While the absence of a one-click OC Scanner might seem like a drawback to some, MSI Afterburner's strength lies in its granular control, empowering users to truly understand and optimise their graphics card's performance. By following a methodical approach and understanding the underlying technologies, even novice users can achieve impressive results.

Frequently Asked Questions

Q1: Can I overclock my GPU with MSI Afterburner if it's not an MSI card?

Yes, absolutely. MSI Afterburner is designed to work with most NVIDIA and AMD graphics cards, regardless of the manufacturer.

Q2: What is the best way to test my overclock stability?

Run demanding benchmarks (like 3DMark) and play your most intensive games for at least 30 minutes to an hour. Monitor for crashes, visual artifacts, or significant temperature spikes.

Q3: Is it safe to increase the power limit to maximum?

Increasing the power limit gives your GPU more headroom, but it also increases power consumption and heat. Always monitor temperatures and ensure they remain within safe limits (generally below 85C).

Q4: How do I make my overclock permanent?

After finding a stable overclock, save it to one of the numbered profile slots. Then, click the Windows icon button in MSI Afterburner to ensure the profile loads automatically when your computer starts.

Q5: My GPU is getting hot (80C), should I be worried?

Temperatures around 80C under load are often considered normal for many GPUs, especially in environments with high ambient temperatures or with factory cooling solutions. However, if temperatures consistently exceed 85C, it's advisable to reduce your overclock, improve case airflow, or adjust your fan curve.