HP board no. 5061-6805?

Hello everybody, once more I turn to the list in my quest for enlightenment... At the university's computer collection where I work, an HP board with the number in the subject turned up. It is a printed circuit board, about 7" wide x 5" deep with a 2x50 trace edge connector. The only visible parts are what looks like a few SMD capacitors; there are three black covers on the board, two of them like 1"x2" in plastic (neat the connector edge), the last one about 6"x3" and made from sheet metal (to the front edge). One of the smaller ones has a Static Discharge warning label stuck on it. There are two flat-but-heavy heat sinks bolted to the opposite side of the board, beneath the two smaller covers. One of the two black ejector handles on the front edge of the board says "512k RAM". I haven't found any useful information by googleing, only a few resellers. We would like to know what machine this part is for; I suppose this will make finding further information much easier. Thanks in advance, yours sincerely -- Arno Kletzander Stud. Hilfskraft Informatik Sammlung Erlangen www.iser.uni-erlangen.de GMX im TV ... Die Gedanken sind frei ... Schon gesehen? Jetzt Spot online ansehen: http://www.gmx.net/de/go/tv-spot