The principle of adding new memory sticks to notebooks: The newly selected memory sticks need to be consistent with the original size, model and brand, otherwise they are not compatible.

You need to see what brand of memory the Dell Inspiron N40 10 is, just add one of the same brand and size.

Deilgat memory steps:

When buying new memory, pay attention to three parameters: which generation of memory, how much memory, and how big the main frequency is;

Take out the new memory module of the notebook computer and unpack it. First, check whether the chip is normal and whether the golden finger is complete.

Then turn the back of the memory stick over to see if the parameters, memory capacity, brand and main frequency posted on it match our Dell notebook computer;

Then, with a small Phillips screwdriver, unscrew a screw on the bottom center cover of the Dell laptop;

Pull the cover along the screw position to open the bottom cover, exposing the original Dell notebook computer memory module and memory module slot;

Break the small buttons at both ends of the notebook memory stick to both sides, then pull the memory stick backwards to take out the memory stick of the original (blue) Dell notebook computer and compare it with the new memory stick;

After confirmation, start installing the memory stick, just like taking it out. Thank you for inserting the memory stick first.

After inserting it to the end, gently press the other end of the memory stick with your finger and hold it, and it will be buckled;

Then install a new memory stick in the second slot, be careful not to put it upside down, and insert the memory stick obliquely, then gently press the other end of the memory stick with your finger, and then clamp it tightly.

Gently press the other end of the memory stick with your finger, and bang, the new green memory stick is also buckled;

Both of them are installed. Check that the dust screen of the back cover is not dropped, and then install the back cover, and everything is done.