Having problems with your laptop's memory? Seeing blue lines? These are just a couple of the things which can point to the memory slots in your laptop needing repair work. Memory slot repair is needed when there is a fault with the RAM (random-access memory) in your laptop. A memory slot (also called a RAM slot) is what enables the memory to be inserted into your laptop. There are usually 2 to 4 memory slots in your laptop's motherboard - although this does depend on the laptop. Memory slot repair is fairly common. It does not mean you have to repair or replace your whole motherboard.