I’ve done this on a CentOS 4.8 box after my ESXi host’s iDRAC would not let me login to it anymore and needed to be reset. So, I threw ipmitool.static onto it and gave it a cold reset. Works great now.
First copy it over (after SSH enabled)
scp ipmitool.static [email protected]:/scratch
Then run it from the host CLI
~ # /scratch/ipmitool.static mc reset cold Sent cold reset command to MC