Plug it in and it will work fine. If you don't have a blue screen with the card unplugged look at the memory, or the motherboard memory slots are possible, both can have this type of failure and it's impossible to tell the difference. Commonly, the CPU cooler on the motherboard long-term use of the motherboard bent near the CPU slot, along with the memory slot bending deformation, resulting in poor contact.
Memory cards are solid-state electronic flash memory data storage devices, mostly in the form of cards or squares. It generally uses Flash (flash memory) chips as the storage medium. It is mainly used in digital cameras, PDAs and laptops, music players, handheld game consoles and other electronic devices. It provides a form of storage that can be read and written to repeatedly and does not require an external power source.