Not to mention that the service manuals are public and very well written. The laptops are made to be serviceable. Not that one may need to, as the standard warranty is 3 years, on-site, worldwide. I was issued an elitebook at work. Liked it so much I bought my own, got stolen, bought a zbook. I cannot recomend them enough.
They're well-written and easy to follow. It's great.
All of these are public and freely available on the website of the manufacturer. They're also in PDF format (or similar) and can be opened easily in full in a browser.
