How to Setup StoreMI (2026 Complete Guide)

Last updated: July 19, 2026 | Estimated reading time: 13 minutes

StoreMI is AMD’s storage tiering and caching technology that combines the speed of an SSD with the capacity of a hard drive or a slower SSD, giving you the best of both worlds. If you have a small, fast NVMe SSD and a larger, slower storage drive, StoreMI can use the SSD as a cache for frequently accessed data, dramatically improving load times and system responsiveness without requiring you to manually manage which files go on which drive. In this guide, we will walk you through everything you need to know about setting up StoreMI in 2026, including system requirements, step-by-step installation, how the technology works, performance expectations, and alternatives.

StoreMI has been around since 2018, but it has evolved significantly over the years. The latest version, StoreMI 3.0, is more refined and stable than earlier versions, with better data migration, improved caching algorithms, and support for newer hardware. Whether you are building a new system or trying to get more life out of an older machine with mismatched drives, StoreMI is a valuable tool that many users overlook.

Table of Contents

• What is StoreMI
• Requirements
• Step-by-Step Setup
• How StoreMI Works
• Performance Benefits
• Alternatives
• Common Mistakes
• FAQ
• Conclusion

What is StoreMI

StoreMI is a software-based storage solution developed by AMD that allows you to combine two storage drives into a single logical volume. The technology uses a fast drive (typically an NVMe SSD) as a cache for a slower, larger drive (typically a SATA SSD or hard drive). Frequently accessed data is automatically moved to the fast drive, while less frequently accessed data remains on the slower drive. The result is a storage system that offers SSD-like performance for your most-used files and applications while maintaining the large capacity of your secondary drive.

The concept behind StoreMI is similar to Intel’s now-discontinued Optane Memory technology, but StoreMI is more flexible. It works with any combination of drives, does not require special hardware like Intel Optane modules, and is available on a wider range of systems. StoreMI also supports tiering (moving data between drives based on access patterns) rather than just caching (copying frequently accessed data to the fast drive), which makes it more efficient in certain scenarios.

StoreMI 3.0, the latest version available in 2026, includes several improvements over earlier versions. It has a more user-friendly interface, better data protection features, faster initial setup, and improved caching algorithms that are better at predicting which data to cache. StoreMI 3.0 also supports a wider range of hardware configurations and is more compatible with modern NVMe drives.

It is important to understand that StoreMI is an AMD technology, and it officially requires an AMD motherboard with a compatible chipset. However, some users have reported success running StoreMI on Intel systems using modified installers, though this is not officially supported and may cause stability issues. For the purposes of this guide, we will focus on the official AMD-supported configuration.

Requirements

Before you set up StoreMI, you need to make sure your system meets all the requirements. Here is a detailed breakdown:

If you are planning your storage layout, you might also want to read our guide on how to make SSD main drive for tips on configuring your primary storage, and our article on can you install 2 SSDs for multi-drive setup advice.

Step-by-Step Setup

Setting up StoreMI is a straightforward process, but it requires careful attention to each step. Here is the complete process:

Step 1: Prepare Your Drives

Before installing StoreMI, make sure both drives are properly connected and recognized by your system. Enter the BIOS and verify that both the NVMe SSD and the SATA drive (SSD or HDD) appear in the storage configuration. Make sure the SATA mode is set to AHCI, not RAID. If the SATA mode is set to RAID, change it to AHCI — but note that this may require a Windows reinstall if your OS was installed in RAID mode.

Back up any important data on both drives. While StoreMI is designed to be non-destructive, there is always a small risk when modifying storage configurations. It is better to be safe and have a backup than to lose important data.

Step 2: Download and Install StoreMI

Download StoreMI 3.0 from AMD’s official website. You will need to create a free AMD account to access the download. The download is a standard Windows installer. Run the installer and follow the on-screen prompts. The installation is quick and does not require a reboot in most cases.

During installation, StoreMI will detect the available drives on your system. It will show you a list of drives that can be used as the cache drive (fast drive) and the capacity drive (slow drive). Make sure you select the correct drives — the NVMe SSD should be the cache drive, and the SATA SSD or HDD should be the capacity drive.

Step 3: Configure StoreMI

After installation, open the StoreMI application. You will see a dashboard showing your configured tier. The initial setup will pair your two drives into a single logical volume. You can choose to use the full capacity of the slow drive or only a portion of it.

StoreMI will ask you to confirm the configuration before proceeding. Review the settings carefully — once StoreMI is configured, changing the configuration requires removing the StoreMI tier and starting over, which involves data migration.

Step 4: Let StoreMI Learn

After the initial setup, StoreMI begins a learning phase where it monitors your data access patterns and determines which data to cache on the fast drive. This learning phase typically takes 1-2 weeks of regular use. During this time, you may not see the full performance benefits of StoreMI because the cache has not yet been populated with your most frequently accessed data.

Use your computer normally during the learning phase. Install your applications, play your games, and access your files as you normally would. StoreMI is watching and learning which data is accessed most frequently. After the learning phase, you should notice significantly faster load times for your most-used applications and games.

Step 5: Monitor Performance

StoreMI includes a built-in monitoring tool that shows you cache hit rates, data migration status, and drive health. A high cache hit rate (above 80%) indicates that StoreMI is effectively caching your frequently accessed data. If the cache hit rate is low, it may indicate that your access patterns are too random for effective caching, or that the cache drive is too small for your workload.

You can also use third-party tools like CrystalDiskMark to benchmark your storage performance before and after setting up StoreMI. This gives you a concrete measure of the improvement.

How StoreMI Works

Understanding how StoreMI works under the hood can help you get the most out of the technology. StoreMI uses two primary mechanisms: caching and tiering.

Caching

Caching is the simpler mechanism. When you access a file, StoreMI copies it to the fast NVMe SSD. The next time you access that file, it is served from the fast SSD instead of the slow drive, resulting in much faster load times. The cache is managed automatically — frequently accessed files are kept in the cache, while infrequently accessed files are evicted to make room for new data.

The size of the cache drive determines how much data can be stored at high speed. A larger cache drive means more of your data can be cached simultaneously, which improves the cache hit rate. For most users, a 256GB or 512GB NVMe SSD provides an excellent cache that covers the operating system, applications, and several games.

Tiering

Tiering is more advanced than simple caching. Instead of just copying frequently accessed data to the fast drive, tiering actually moves data between drives based on access patterns. Hot data (frequently accessed) lives on the fast drive, while cold data (infrequently accessed) lives on the slow drive. This is more space-efficient than caching because it does not duplicate data — it moves it.

StoreMI combines both caching and tiering to optimize your storage performance. The technology continuously monitors your data access patterns and adjusts the data placement accordingly. Over time, your most-used files and applications are always on the fast drive, while your less-used data is on the slow drive.

Write Operations

When you write new data, it is first written to the fast NVMe drive. StoreMI then determines whether the data should remain on the fast drive (if it is likely to be accessed frequently) or be migrated to the slow drive (if it is likely to be cold data). This write-back caching approach means that writes are fast because they go to the NVMe drive first, and the migration to the slow drive happens in the background.

Performance Benefits

The performance benefits of StoreMI depend on several factors, including the speed of your drives, the size of the cache, and your data access patterns. Here are some typical performance improvements:

Alternatives

While StoreMI is an excellent solution, it is not the only option available. Here are some alternatives worth considering:

Windows Storage Spaces: Windows includes a built-in storage tiering feature called Storage Spaces that can combine multiple drives into a single pool with automatic data tiering. It is more complex to set up than StoreMI but offers more flexibility, including the ability to create mirrored or parity-protected volumes. Storage Spaces works with any hardware, not just AMD systems.

Intel Optane Memory (Legacy): Intel’s Optane Memory technology performed a similar function to StoreMI, using a small Optane module as a cache for a larger drive. However, Intel discontinued Optane Memory in 2022, and the technology is no longer available for purchase. If you already have Optane hardware, it still works, but it is not a viable option for new builds.

PrimoCache: PrimoCache is a third-party software solution that provides SSD caching for any storage drive. It works with both AMD and Intel systems and offers more configuration options than StoreMI, including write-back caching, lazy write, and deferred write modes. PrimoCache is a paid software ($30-$300 depending on the license), but it offers more advanced features for power users.

Just Buy a Bigger SSD: The simplest alternative is to skip caching entirely and just buy a larger SSD. SSD prices have dropped significantly in 2026, and a 1TB or 2TB NVMe SSD can be had for reasonable prices. If you do not need the massive capacity of a hard drive, a single large SSD is the most reliable and highest-performance option.

If you are considering using your SSD as a dedicated boot drive instead of a cache, see our guide on how to make SSD main drive for a complete walkthrough of that process.

Common Mistakes

Here are the most common mistakes users make when setting up StoreMI, and how to avoid them:

Mistake 1: Using a Small Cache Drive. A cache drive that is too small will result in a low cache hit rate, which means StoreMI will frequently need to access the slow drive. For the best experience, use a cache drive of at least 256GB. A 128GB drive will work, but the benefits will be reduced, especially if you have many large applications or games.

Mistake 2: Not Waiting for the Learning Phase. StoreMI’s caching algorithm needs time to learn your data access patterns. If you evaluate StoreMI’s performance immediately after setup, you may be disappointed because the cache has not been populated yet. Give it at least one to two weeks of normal use before judging the results.

Mistake 3: Setting SATA Mode to RAID. StoreMI requires the SATA mode to be set to AHCI in the BIOS. If your system is set to RAID mode, StoreMI will not install correctly. Change the SATA mode to AHCI before installing StoreMI, but be aware that this may require reinstalling Windows if your OS was installed in RAID mode.

Mistake 4: Disabling StoreMI Incorrectly. If you need to remove StoreMI, you must use the StoreMI application’s removal tool. Simply uninstalling the software or deleting the configuration can leave your data in an inconsistent state. Always use the proper removal process, which migrates your data back to the slow drive before removing the tier.

Mistake 5: Using StoreMI on a Drive with Important Data Without Backup. While StoreMI is designed to be non-destructive, modifying storage configurations always carries some risk. Back up your important data before setting up or modifying a StoreMI configuration. If something goes wrong during setup or removal, your data will be safe.

Mistake 6: Expecting SSD Performance for All Data. StoreMI only accelerates data that is cached on the fast drive. If you access a large amount of data that is not in the cache, you will still experience the slower speeds of the capacity drive. StoreMI works best when your most frequently accessed data fits within the cache drive’s capacity.

FAQ

Does StoreMI work with Intel processors?

StoreMI is officially an AMD technology and only works with AMD Ryzen processors on compatible AMD chipsets. While some users have reported success running modified versions on Intel systems, this is not officially supported and may cause stability issues. If you have an Intel system, consider alternatives like PrimoCache or Windows Storage Spaces.

Can I use StoreMI to accelerate my boot drive?

Yes. StoreMI can be configured to cache your Windows boot drive, which is located on the slower SATA SSD or HDD. The fast NVMe SSD serves as the cache, and frequently accessed boot files and applications are stored on the NVMe drive for faster loading. This is one of the most popular StoreMI configurations.

What happens to my data if the cache drive fails?

If the cache drive fails, the data on the capacity drive remains intact. However, any data that was only in the cache (and had not yet been written back to the capacity drive) may be lost. StoreMI periodically flushes cached writes to the capacity drive, but there is a small window where recently written data may be only in the cache. This is why regular backups are important regardless of your storage configuration.

How do I check if StoreMI is working?

Open the StoreMI application and check the dashboard. It will show you the cache hit rate, which indicates how effectively StoreMI is caching your data. A hit rate above 80% is excellent. You can also benchmark your storage performance using CrystalDiskMark before and after setting up StoreMI to see the improvement in real numbers.

Can I use StoreMI with a RAID array?

No. StoreMI is not compatible with RAID configurations. Your drives must be in AHCI mode in the BIOS. If you currently have a RAID setup, you will need to break the RAID array and switch to AHCI mode before installing StoreMI. This typically requires reinstalling Windows.

Does StoreMI work with SATA SSDs as the cache drive?

Yes, but NVMe is strongly recommended. A SATA SSD as the cache drive will provide some improvement over an HDD, but the benefit is much smaller than with an NVMe drive. SATA SSDs are limited to approximately 550 MB/s, while NVMe drives can reach 3,500 MB/s or more. If you have the option, always use an NVMe drive as the StoreMI cache.

Is StoreMI free?

Yes. StoreMI 3.0 is free to download from AMD’s website. You need to create a free AMD account to access the download, but there is no cost for the software itself. This makes StoreMI one of the most cost-effective storage acceleration solutions available.

Can I use StoreMI to combine two NVMe drives?

Technically yes, but it does not make sense. StoreMI is designed to combine a fast drive with a slower drive. If both drives are fast NVMe SSDs, you would get better performance by using them separately (one as a boot drive, one as a data drive) rather than combining them with StoreMI. The tiering overhead would actually reduce performance compared to using both drives independently.

Conclusion

StoreMI is a powerful and free storage acceleration technology that can dramatically improve your system’s performance by combining the speed of an NVMe SSD with the capacity of a larger, slower drive. It is particularly useful for users who have a small NVMe SSD and a large hard drive, or who want to get more performance out of their existing storage without replacing everything.

The setup process is straightforward, and the performance benefits are significant — especially for boot times, application loading, and game load times. The key is to use a fast NVMe SSD as the cache drive, give StoreMI time to learn your access patterns, and monitor the cache hit rate to ensure optimal performance.

While StoreMI is not the only storage acceleration solution available, it is one of the best options for AMD users. It is free, easy to set up, and does not require special hardware. If you have an AMD system with mismatched drives, StoreMI is well worth trying. Just remember to back up your data before making any changes to your storage configuration, and be patient during the learning phase for the best results.

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