
Maximum RAM Capacity for a CPUĪs with the 32-bit OS, a 32-bit processor will also support a maximum RAM of 4GB. Therefore, the number of DIMM slots and the type of memory play a vital role in determining a motherboard’s maximum RAM support. A motherboard that supports DDR4 memory has a maximum RAM capacity of 64GB per DIMM slot. Using a motherboard that supports DDR3 memory can only support up to 16GB of memory per DIMM slot. Once you get the motherboard details, you can access the internet to learn about its memory types and the number of memory slots it has.
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However, 64-Bit can support maximum RAM ranging from 128GB to 6TB, depending on the edition of the OS.įor example, Windows 10 Home 64-Bit supports up to 128GB of memory while Windows 10 Pro for Workstation 64-Bit supports up to 6TB of RAM. Maximum RAM Capacity for an OSĪ 32-Bit OS will only support a maximum of 4GB of RAM. Once you know the CPU, motherboard, and OS details, the following topic will help you know each component’s maximum RAM capacity. Note: BaseBoard Product is your motherboard model.

Type wmic memphysical get MaxCapacity, MemoryDevices and press Enter.Type cmd and press Ctrl + Shift + Enter to run Command Prompt as an administrator.There are multiple ways you can get the details about the maximum RAM capacity but using Command Prompt is one of the simplest methods. Depending on the number of DIMM slots and their capacity, the motherboard will have certain restrictions when upgrading RAM. The maximum RAM capacity of the CPU and the OS is generally high compared to what your motherboard supports.
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How to Check Maximum RAM Capacity on Your PC?
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In this case, you need to upgrade your motherboard that supports more RAM before adding more RAM to the PC. Operating System’s architecture (32-bit/64-bit)įor example, if your OS and CPUs maximum RAM capacity is 2TB and 128GB, but the total DIMM slot on the motherboard only supports the total of 16 GB RAM, your PC’s maximum RAM capacity will be no more than 16 GB.The components with the lowest maximum RAM capacity will be your PC’s actual maximum RAM capacity.
