Its a compaq presario 5000.

This is the 1st result from 5000...

http://h10025.www1.hp.com/ewfrf/wc/p...&lang=en&cc=us

http://h20180.www2.hp.com/apps/Looku...x=0&submit.y=3

It would seem that the S3 Graphics Inc. Savage 4 was an add on?

Have you tried running with the case open?