Long DIMM vs DIMM
Long DIMM vs DIMM
No, you can't simply replace a standard DIMM with a long one. The length doesn't match the connector size, so it won't fit properly.
There's SO-DIMM which is a smaller ram stick, for laptops, and there's regular DIMM, which is the normal size ram sticks. You need regular DDR3 sticks. You also have to be careful and check if your motherboard actually supports 8 GB sticks. Some chipsets had limitations which only made it possible to use sticks up to 4 GB in size. Your motherboard may also have 4 slots in total, which means you could just add 2 4 GB sticks and keep the existing 2 x 2 GB sticks. So start by determining what motherboard model you have - if you don't know it should be printed somewhere on the motherboard or you can find it with tools like HWInfo64 or Aida64 or maybe even CPU-Z
Here are the links:
[Link 1]
[Link 2]
Please let me know which motherboard you're using so we can assist you better.