Select Memory and continue to purchase the memory.

Identify your Dell computer using the Service Tag or Express Service Code.

A 64-bit version of operating system can support system memory that is greater than 4 GB. Adding a higher capacity memory in such cases does not improve the performance as the operating system cannot take advantage of the available memory. There is usually picture of ram config inside the cover.

If the computer is installed with a 32-bit version of Windows or other operating systems, the operating system can only recognize 4 GB of memory. The DIMM slots are (Left to right: 1 - 5 - 3 - 7 (left side of the CPU), and- 8 - 4 - 6 - 2 (right side of CPU) White Ears are Bank 0 so if you have 4 dimms they go in the white ear slots first.See the documentation of your Dell computer for model-specific information. For example, if your laptop with 2 memory slots supports a maximum of 16 GB of memory, you can install 2 x 8 GB memory modules. Often laptops have 2 memory slots, and desktops may have more than 2. Take the computer apart and rebuild it outside of the case on cardboard. As youve tested other kits I would say its not the RAM. CPU as it holds the memory controller, motherboard or the RAM. Every computer has a specific number of memory slots on the system board. The DRAM light can be 3 things which is not helpful.For example, a particular Dell desktop or laptop may support a minimum of 2 GB and maximum 16 GB of memory. Every computer is designed to work with a minimum and maximum capacity of memory.What is the maximum capacity that is supported by the computer?.WARNING: Installing an incorrect or unsupported type of system memory (RAM) on the computer may cause physical damage to either the module or the slot on the system board.

Blue or white slot for ram first