Questions about HP ProBook 450 G4

Hello, I can't answer your question, because I have never increased the memory of my Notebook. To save my important documents, I use 2 external hard drives, which I plug into one of the USB of the computer. I practice this way: - On the desktop (computer) I have a folder called "Pending". - As soon as I create an important file, I immediately transfer it to this folder, along with a backup on a USB stick (in case the computer has a problem). Later, in my spare time (maybe 1 month), I take my files that are pending in the "Pending" folder to sort them out and create one or more folders for these files and finally save them on the 2 external hard drives at my disposal. Once the transfer to the external disks is complete, I delete the contents of the "Pending" folder on the desktop and also the contents of the USB stick. the contents of the USB stick. Space is available for the next files or folders. As a result, the computer's hard drive never reaches its maximum capacity. I don't even trust the Microsoft, Google etc. cloud for backup. I practice the same way with my desktop computer. Just in case, a computer reset is necessary, I can reload all my personal files. I have nothing lost. I am not an expert, but is the 2.5 disk compatible with the BIOS? Also, maybe the drivers need to be upgraded? If you buy a product from a brand like HP (Hewlett Packard) you are lucky to have a "Support Assistant" on the bottom right hand side of the computer. on the computer at the bottom right of the screen. Therefore, you can send your request directly to HP's specialised services. Best regards.

I can't find this information "Number pad: No"... Where does it say that? This notebook definitely has a numeric keypad.

No, unfortunately not. However, a 2.5" HDD/SSD slot is still available and a RAM slot should also be free. Enclosed is a picture of the interior: https://www.notebookcheck.com/fileadmin/_processed_/csm_open_ff073377fd.jpg

Hello. Yes, has a flap. It says so on the HP page: Maximum memory capacity 16 GB DDR4-2133 SDRAM. (Transfer rates of up to 2,133 MT/s. Customer can access or upgrade both slots. Supports dual-channel memory. ) http://www8.hp.com/ch/de/products/laptops/product-detail.html?oid=10477253#!tab=specs

Yes, both are possible

At full power, the battery lasts approx. 4 hours. This means that all services (Wi-Fi, etc.) are active.

approximately equal

Opened the service lid, Yes, it has a free space for an additional 2.5" drive. Hope the information helps

Digitec: HP H6Y89AA AC adapter (65W), should fit. Control the power to your notebook in a targeted way. HP's new 65W Smart AC adapter controls the flow of power and compensates for power surges. The design prevents the cable from kinking. Also includes a special dongle that supports new and old HP models - ideal as a notebook power supply replacement or backup. H6Y89AA#UUZ

Yes, one slot is still free. The following memory can be used: Kingston KCP421SD8/8 (1x, 8GB, DDR4-RAM, unbuffered)