I need the two marked components:
You could ask the manufacturer for the data sheet.
These are capacitors.
these are also called ElKo as an abbreviation.
You only need the voltage and capacity values.
These are electrolytic capacitors. If in doubt, take two others of the same size!
Are aluminum polymer capacitors. Probably 6.3V
I searched for all the detailed images on Google and found nothing. I'm sure I won't get any information from Dell.