i finally managed to move the forum (and my other websites) away from a 6 year old pc onto a new server. the whole web stuff now runs as a virtual machine on vmware esxi 5.1. for the beginning i assigned 4 cores and 6gigs of memory. time will tell i this sizing fits the needs.
so far everything seems to work flawless. however, if you encounted any issues then please send an email to administrator(at)cp-forum.net