1. The most direct way to know the number of memory slots in your computer is to disassemble the computer, open the back cover of the notebook to find the location of the memory stick, and check how many memory slots there are in your computer.
2. We can also right-click on the taskbar, select: Performance, click on the memory, see the lower right corner: "used slots" to see how many memory slots there are.
3. Generally speaking, the computer only has two memory stick slots. Perhaps the higher the price, the more memory stick slots.