Known Pentium II hack?

[jry2]

Just out of curiosity, we opened old Pentium II and found this:

Is this hack known?

 

[RealBeast]

The 333MHz Deschutes version of the PII, ran at 450MHz for everyone that I knew with no effort at all. It was the best overclock known for decades.

 

[jry2]

What does contain the black package soldered on red/green/yellow/black wires?

According to http://www.tomshardware.com/reviews/intel,65.html we have 400MHz version of PII (82459AD tag RAM chip, and 5ns L2 cache modules).