Not the entire memory has been recognized

When unpacking, I noticed immediately that the pins do not look like new. Either it is bad build quality that the contacts have small chipping / tracks, or RAM Riegel is already used returned goods.

This, however, should not be a problem as long as the memory works, but he has not. Although exactly the memory module meets the specifications of my motherboards, only 96MB are recognized by the 1 GB. So I can not use the memory module and I unfortunately had to send him back. A memory module from another manufacturer then has worked perfectly.