Kingston 4GB (2GBx2) DDR2 PC2-6400 RAM Memory Upgrade For Sony VAIO VGN-NS20S/S | Mucky2Pups Authorised Kingston ReSeller

We engineer quality and reliability into every one of our products. From the components we select, to our expert manufacturing, rigorous testing and fast shipping processes, Kingston ensures that customers can expect consistently high-performance from every Kingston ValueRAM memory module. Our high quality and reliability standards are well known in the industry and are the main reasons why more global OEM customers select Kingston to manufacture their private-label modules. Kingston is renowned industry-wide for its memory testing expertise. Since 1998, Kingston has provided the industry with new memory technology validation services. All new DRAM technologies, including DDR3, were first validated by Kingston engineers. Kingston tests 100 per cent of its memory products - every cell on every DRAM is rigorously tested for customers' peace of mind. If you are running a 32Bit OS then there is a possibility that your system will only show 3.5GB-4GB of useable RAM regardless of if your system will accept 8GB or 16GB or higher and you purchase higher than 4GB of RAM. So e.g if your system allows 16GB max capacity but your are only running a 32Bit OS then it will most likely only show a useable 3.5GB-4GB. Most 64Bits will allow the full RAM useage providing you purchase the correct capacity for your system. If you are unsure then please contact us. We will advise if you're unsure. If 4GB is installed, the recognized memory may be reduced to 3.5GB or less (depending on system configuration and memory allocation). Maximum configurations require a 64-bit operating system.