No, the Intel® Xeon® X7350 is an MP (4 or more CPUs on a board). All 3 of the systems that you listed would have supported Intel Xeon processors with a FSB of 800 (think of Intel NetBurst) and are DP (dual processor) boards.
the6200 is a 604 socket and will take up to 3.6ghz cpu so should be compatible but theres very little info available on what cpu's are supported.
looking around there are at least 2 models of motherboard for that hp build...
so i cant be certain...