User Feedback :: help pliz
Usually computers that are too old for PCI do not have integrated networking, but it is possible.
Digital Equipment Corp once made a 486-33 thin PC that contained integrated NIC and SCSI port for expansion.
Google is your friend...
This thread has some links to the HP website for Compaq Deskpro EP/SP drivers.
They mention drivers for both 3com 3c905 and Intel PRO/100 network chipsets.
http://www.howtofixcomputers.com/bb/sutra409144.html
thanks guys i think the easiest way for me would be just to go ahead and buy a new network card since all i have to do is plug it in . i am really not into computers that much and i dont think i would have the guts to open the computer up to look for the card model but i'll try everything else that will seem to work maybe i can get soemeone to open it up and check it out for me. though i think thats gonna take some time. 
It might just be easier to buy a cheap PCI network card and use it instead.
Oops, I did totally miss the model info from your previous post. I skipped right past it and went straight at the lspci stuff. Thanks rja
Here is another attempt at a solution.
Open an xterminal and type:
sudo su
modprobe e100
modprobe 3c59x
modprobe tlan
netcardconfig
exit
exit
Good luck.
original here.