Dell Power Supply Unit PSU - easy to install, smooth as butter
For my 10 year-old Optiplex 780 (slim -ish ) Dell. Found out protracted start-up problems were because of a worn out Power Supply Unit (PSU).
Advice to others: Check and match the SHAPE of your PSU.
Once found, this PSU was easy to install (with help from a Youtube vid) and two weeks later is working just fine - smooth as butter!
What more can I say apart from it works and does what its meant to. Designed exclusively for use in some Dell Optiplex models, so won't be much good for anything else because of its dimensions and pin configurations.