How to Set Up RAID 0 for Gaming Storage

What is RAID 0 and how does it work

RAID 0, also called disk striping, spreads data across two or more storage drives. The system writes pieces of every file to each drive at the same time. This parallel access can increase sequential read and write speeds compared to a single drive. For a gaming PC, faster sequential speeds can reduce the time it takes to load a game level or open a large open-world area.

RAID 0 requires at least two drives of the same capacity. The total usable space equals the sum of all drives. For example, two 1 TB SSDs in RAID 0 give you 2 TB of storage. The operating system sees the array as one logical drive.

Modern gaming PCs often use NVMe SSDs that connect through the PCI Express interface. The NVIDIA GeForce RTX 50 Series graphics cards support PCI Express Gen 5, and many current motherboards offer PCIe Gen 5 slots for SSDs. RAID 0 can be configured on these drives, but the performance gain depends on the motherboard chipset and the RAID controller. If you are choosing a new gaming PC, consider the storage interface and PCIe version before planning an array.

Benefits of RAID 0 for gaming

The main advantage of RAID 0 in a gaming PC is faster load times. Games that stream large assets from storage, such as open-world titles, can see shorter waiting periods when entering a new area or starting a session. The striped array reads data from multiple drives simultaneously, which can improve sequential throughput.

RAID 0 can also benefit content creation tasks like video editing, where large file transfers are common. For pure gaming, the improvement is most noticeable when moving from a single SATA SSD to a RAID 0 array of NVMe SSDs. However, the difference between a single fast NVMe drive and a RAID 0 array may be small in many games because modern games are often bottlenecked by the GPU or CPU rather than storage.

If you frequently install and uninstall large games, RAID 0 can speed up the copying and decompression of game files. The write performance of a striped array is also higher, which helps when downloading and installing updates. For a balanced gaming setup, pair a RAID 0 array with a good gaming PC that has enough RAM and a capable GPU.

Risks and considerations before setting up RAID 0

The biggest risk of RAID 0 is data loss. Because data is split across all drives, if any single drive fails, the entire array becomes unreadable. You lose all data on the volume. For a gaming PC, this means reinstalling the operating system, games, and any saved files. There is no built-in redundancy.

RAID 0 also doubles the chance of a drive failure compared to a single drive. If each SSD has a certain failure rate, using two drives makes the array twice as likely to fail over time. SSDs have limited write endurance, and a RAID 0 array can wear out drives faster because writes are distributed across all drives.

Setting up RAID 0 requires compatible hardware. The motherboard must support RAID mode, and all drives should be identical in model and capacity for best performance. Mixing different drive models can lead to instability or reduced speed. Additionally, enabling RAID mode in the motherboard firmware may prevent the use of some NVMe slots or require a specific BIOS configuration.

Windows 11 requires a minimum of 64 GB of storage, but a gaming PC with RAID 0 should use much larger drives. The operating system and games can quickly fill a small array. Consider the total capacity you need before committing to RAID 0. For most players, a single high-capacity SSD is enough.

How to set up RAID 0 for gaming storage

The exact steps vary by motherboard manufacturer, but the general process is the same. First, ensure you have two or more identical SSDs installed in your PC. They should be the same model, capacity, and firmware revision. Back up any important data before starting, as the setup will erase all drives.

Enter the motherboard firmware (often called BIOS) during startup. Locate the storage configuration menu and change the SATA or NVMe mode from AHCI to RAID. Save the changes and restart. After rebooting, enter the firmware again and look for the RAID configuration utility (often accessed by pressing a key like Ctrl+I or F10 during boot).

In the RAID utility, select the option to create a RAID volume. Choose RAID 0 as the level, select the drives you want to include, and set the stripe size. A stripe size of 64 KB or 128 KB is common for gaming. Confirm the creation, and the array will appear as a single drive in the operating system installer.

When installing Windows 11, you may need to load the RAID driver from a USB drive if the installer does not recognize the array. Download the driver from your motherboard manufacturer's support page beforehand. After installation, the RAID volume will appear as a normal drive. You can then install games and applications on it. For a step-by-step guide on installing Windows, see how to set up a new prebuilt gaming PC.

Alternatives to RAID 0 for faster gaming storage

For most gamers, a single high-performance NVMe SSD is a simpler and safer option. Modern PCIe Gen 4 and Gen 5 SSDs offer sequential read speeds exceeding 7,000 MB/s and 10,000 MB/s respectively, which are already fast enough to eliminate storage bottlenecks in nearly all games. The NVIDIA GeForce RTX 50 Series supports PCIe Gen 5, and many motherboards now include Gen 5 M.2 slots.

If you need more capacity than a single drive offers, consider using separate drives for different purposes: one for the operating system and applications, and another for the game library. This avoids the complexity and risk of RAID 0 while still providing ample space.

Another option is to use Windows Storage Spaces with a simple (no resilience) layout, which can combine drives without the hardware RAID configuration. However, this software-based approach may have slightly lower performance than hardware RAID 0 and still carries the same data loss risk. For a prebuilt gaming PC, check the storage configuration before deciding.

What to pick for your play

Questions

Does RAID 0 improve gaming performance beyond load times?

RAID 0 primarily affects sequential read and write speeds, which influence how fast data loads from storage into memory. In most games, once the level is loaded, the GPU and CPU determine frame rates. RAID 0 does not directly increase FPS or reduce in-game stutter caused by other components.

Can I use different sized SSDs in RAID 0?

Technically yes, but the array will be limited to the capacity of the smallest drive. For example, a 1 TB and a 2 TB drive in RAID 0 will give you 2 TB total (1 TB from each), wasting the extra space on the larger drive. For best performance and capacity, use identical drives.

Is RAID 0 safe for storing important files?

No. RAID 0 provides no data redundancy. If one drive fails, all data is lost. Never use RAID 0 for irreplaceable files. Always keep backups of any important data on a separate drive or cloud storage.

Do I need a special RAID controller for gaming?

Most modern motherboards include built-in RAID support through the chipset. For a two-drive RAID 0 array, the motherboard's built-in controller is sufficient. Dedicated RAID cards are not necessary for gaming and may add cost without benefit.

Will RAID 0 void my warranty?

Configuring RAID 0 is a software/firmware setting and does not physically alter the drives. It should not void the warranty of the SSDs or the motherboard. However, check the warranty terms of your specific components for any restrictions.

Can I add more drives to an existing RAID 0 array later?

No. RAID 0 arrays cannot be expanded by adding drives. To increase capacity, you must back up the data, create a new array with all drives, and restore the data. This is another reason to consider a single large SSD instead.

Does Windows 11 support RAID 0?

Yes, Windows 11 can be installed on a RAID 0 array. You may need to load the appropriate RAID driver during installation. The operating system sees the array as a single drive. Windows 11 requires a minimum of 64 GB of storage, but a gaming array should be much larger.

What stripe size should I use for gaming?

A stripe size of 64 KB or 128 KB is commonly recommended for general use and gaming. Smaller stripe sizes (e.g., 16 KB) may improve random performance but can reduce sequential throughput. Larger stripe sizes (e.g., 256 KB) favor sequential transfers. For most gamers, 128 KB is a good balance.