Memory Upgrade for HP Slim Desktop S01-pF-1013w

I hope that this is the correct forum for this question. My name is Father Paul, I am a priest and we are using HP Slim Desktop S01-pF1303w computers in the Church Offices. We want to upgrade the memory is each from the current 4 GB. Any recommendations? Were are the memory slots located on the mother board?

Thank you for your assistance.
WP+

Replace the Memory Module | HP Slim Desktop S01-aF0000, S01-aD0000 | HP - YouTube Here you go

@Father_Paul You can add this RAM to the existing 4GB, for a total of 8GB.

Opening the case should immediately reveal the RAM slots. You might have to remove 3-4 screws to have enough clearance to put the memory in the slot.