what could be check if i got the psod version of esxi 5.0.how to analysis the issue and how to get rca.
Provide more information. On PSOD, you will get some kind of error message at the start of the screen. There are many aspect causes PSOD.
you can refer to below KB article :
Interpreting an ESX/ESXi host purple diagnostic screen (1004250) | VMware KB
required these logs
if dump file generated vmkdump file
mostly inside /root/ or /var/core/ directory: