Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to install notebook memory [title] Determine your current ram type, amount of ram installed and maximum availability. [substeps] Some laptop brands make it easy for you to find out the type of ram you have, but it can be a challenge for other brands. Check the documentation that came with your computer.

Ending1: [title] Log into the " system preferences " page. [title] Enter the password associated with your default user account. Ending2: Visit your laptop brand's support site and search for your model and build to determine the kind of ram. The model, serial and build numbers are found on stickers on the bottom of your computer. Ending3: This should help you select a ram type you can use to install your notebook memory. Keep in mind that if you have any free ram built-in, you should still order the system from a brand you trust. Ending4: It might tell you more about your computer's ram, but if you don't have any tools as to whether or not it offers usb memory or local memory, then you'll need to adjust what you're purchasing. [title] Find a computer that can install notebook memory.

Answer format: ending1/ending2/ending3/ending4