Our office upgrade internet connection from Dial-up to Leased Line. In connection to this upgrade we also upgraded our Linux based gateway server. We added another ethernet card to the server which is a HP Netserver E800 PIII 1.0Ghz, the HP had a problem detecting the 3COM 3C905CX ethernet card, I don't know why, but we were forced to change the card and install another brand, Realtek, the HP were able to detect it. We configured everything and the system worked out fine. We tested everything while the server cover is still open, in short everything is exposed. While running I noticed that the Realtek ethernet card is not yet screwed, so while the server is running I screwed the realtek card. I was not able to screw the card totaly but I already did a few turns. I stopped thinking that something might go wrong so I shutdown the server and screw the realtek card. After tightening the screw we boot up the server. Upon boot-up we noticed that one ethernet card failed to initialize which is the realtek. The other ethernet card is built in the HP which is still ok. We tested another ethernet card and used all available slots one at a time but still same problem occure. HP can no longer detect any ethernet card inserted on any its PCI slots.
What could be the problem? is the cause of the problem when I did a few turns to tighten the ethernet card to the body of the server? Please help.