Hi Shankar,No - nothing SW-wise needs to be installed. This is purely a function of the hardware & firmware.Also besides /var/tombstones/ts99 you may also want to check /var/adm/syslog/syslog.log & /etc/shutdownlog for any futher clues for the reason for the crash.And if crash dump is enabled on the system check the /var/adm/crash directory for any dumps that may have been written out. These will contain the contents of memory when the incident occurred.Rgds,Jeff
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