Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Engineering sample:

This text has been unreferenced on Wikipedia for a very long time. If you can't find a source, be bold and remove it!

This text is part of the article's lead section, so referencing it may be optional. Please see WP:CITELEAD for more information.

"

Some engineering samples, such as Pentium 4 processors, were rare and favoured[citation needed] for having unlocked base-clock multipliers. More recently, Core 2 engineering samples have become more common and popular.[citation needed] Asian sellers were selling the Core 2 processors at major profit.[citation needed]