M.2 SSD Overheating and Throttling: Fixes

Why M.2 SSDs overheat

M.2 SSDs, especially NVMe models, pack high-speed storage into a small stick. The controller and NAND flash generate heat during read and write operations. Under heavy loads, such as loading large game worlds or transferring big files, the drive can get hot quickly. If the heat builds up, the drive's firmware may reduce its speed to protect the components, a process called thermal throttling.

PCIe 5.0 SSDs are faster than previous generations but also run hotter. The higher data transfer rates require more power, which translates to more heat. This is why many high-performance M.2 drives come with a heatsink pre-installed, and why motherboards often include a heatsink or shield for M.2 slots. For a gaming PC, the M.2 SSD is often the primary drive for the operating system and games, so keeping it cool is important for consistent load times. If you are choosing a prebuilt gaming PC, check that the included M.2 drive has adequate cooling, as some budget models may omit a heatsink.

How to check your M.2 SSD temperature

To see if your M.2 SSD is running hot, you can use your system's monitoring software or a third-party utility. Many motherboards include a monitoring app that shows drive temperatures. Windows also provides basic drive health information, but for a real-time temperature reading, you may need a dedicated tool. The Windows 11 specifications page from Microsoft does not list temperature monitoring, but the operating system does offer a way to check drive health through the Storage settings.

Look for the temperature in the software's storage or drive section. A normal idle temperature is often around 30 to 40 degrees Celsius, but under load it can rise. If you notice the temperature climbing above 70 degrees Celsius during heavy use, it may be a sign that the drive is getting too hot and could throttle. For a gaming PC, you might want to monitor the temperature during a long gaming session, as the drive may be reading game assets continuously. If you are using a 1440p gaming PC, the higher resolution textures can increase the amount of data read from the SSD, so temperature monitoring is especially useful.

Cooling solutions for M.2 SSDs

If your M.2 SSD is running hot, there are several cooling options to consider. The most common is a heatsink, which is a metal plate that attaches to the drive and helps dissipate heat. Many motherboards come with a heatsink for at least one M.2 slot, but if your drive is in a slot without one, you can buy an aftermarket heatsink. When choosing a heatsink, make sure it is compatible with your drive's size (2280 is the most common) and that it fits under your graphics card or other components.

Another option is to ensure good airflow inside your case. A case with proper intake and exhaust fans will help keep the temperature down for all components, including your SSD. If your case has poor airflow, adding a fan or repositioning existing fans can make a difference. For a gaming PC, the case design and fan configuration are part of the overall cooling strategy. You can learn more about case fans and airflow in other articles.

For high-performance PCIe 5.0 drives, some models come with a larger heatsink or even a small fan. These are designed to handle the extra heat these drives generate. If you are building a new system, consider choosing a motherboard with robust M.2 cooling, or a drive that includes a heatsink. The best PCIe 5.0 SSDs for gaming guide lists drives that often come with cooling solutions. For a 4K gaming PC, where the SSD may be under heavy load, a dedicated heatsink is a good idea.

What to pick for your play

When choosing an M.2 SSD for your gaming PC, consider the cooling solution that comes with it. If you are buying a high-speed PCIe 5.0 drive, look for one that includes a heatsink or is compatible with your motherboard's M.2 shield. For most gamers, a PCIe 4.0 drive with a heatsink is a good balance of speed and temperature management. The best SSDs for gaming guide can help you compare options by stated specs.

If you are building a new system, check the motherboard's M.2 slot layout. Some slots have a heatsink, while others do not. Make sure the drive you choose fits in a slot with adequate cooling. For prebuilt gaming PCs, the manufacturer usually includes a heatsink on the M.2 drive, but it is worth checking the specifications. If you are looking at a 1080p gaming PC, the SSD cooling may be less critical, but it is still a good practice to ensure the drive has some form of heat dissipation.

For streaming while gaming, the SSD may be used for recording or capturing gameplay, which can increase the write load. In that case, a drive with a heatsink is recommended to avoid throttling during long streams. The best gaming PCs for streaming guide often lists systems with adequate storage cooling. Always check the drive's temperature after installation and during heavy use to ensure it stays within a safe range.

What to pick for your play

Questions

What is thermal throttling on an M.2 SSD?

Thermal throttling is when the SSD reduces its speed to lower its temperature. This happens when the drive gets too hot, usually above 70 degrees Celsius, to protect the components from damage.

How do I know if my M.2 SSD is overheating?

You can check the drive's temperature using your motherboard's monitoring software or a third-party utility. If the temperature stays above 70 degrees Celsius during heavy use, it may be overheating and could throttle.

Do all M.2 SSDs need a heatsink?

Not all, but high-speed NVMe drives, especially PCIe 5.0 models, generate more heat and benefit from a heatsink. Many motherboards include a heatsink for M.2 slots, and some drives come with one pre-installed.

Can I add a heatsink to an M.2 SSD that doesn't have one?

Yes, you can buy an aftermarket M.2 heatsink. These are easy to install and attach directly to the drive. Make sure the heatsink fits your drive's size and your motherboard's slot clearance.