I have just shortened the uptime of my server, I have upgraded the hardware. The memory is upgraded from 48 Mb to 128 Mb, 4 times 32 Mb EDO, boucht at MTI
The two pci realtek RTL8139C networkinterfaces are replaced bij two ISA 3com 3C515-TX networkinterfaces. Now there's a little more room in the machine so possibly I might get a better airflow. The stability of the network wil improve also.
. In order to get the ISA networkinterfaces operational, I used the forum of the e-smith developmentsite, here is a almost perfect explanation, but read the complete thread first, I also skipped the io-adresses in step 4.