Disabling IRQ was quite help and good to gets hand on power cli. It worked for few days before I shut system down but yesterday I had another purple screen in attachment.
Do you see this related to IRQ anyhow or you really recommend me downgrading to 4.1. I am not a hardware or VMware expert and searching on google result in less what I can make out of it like my on ECM field.
If you don't mind, can you suggest changes to make in hardware compatible to ESXi 5.1 hardware specifications.