Just a bit less than a week after applying an HP Proliant Support pack to our BL460c G5 blades one of them running Windows 2003 begain rebooting randomly. The only real errors I could find were in the System log. These errors are about Event Source: hpqilo2 with an Event ID: 57. They had to do with Timeouts causing a ASR (reboot)
Description: The system has rebooted from a Automatic Server Recovery (ASR) event.
ProbableCause: 111 0x6f (Timeout)
ProbableCauseDescription: "ASR Reboot Occurred"
I did a full hardware swap since everything I found on google pointed to hardware. After that didn't resolve anything, I found that there is a new driver for HP ProLiant iLO 2 Management Controller Driver available. One of the known fixes is
"Resolved a problem where system could spontaneously reboot (ASR) if all CPU's were under continuous 100% load, and iLO 2 was reset (e.g. due to firmware update, changes to network settings, etc.)."
This looks like it could be our issue, only time will tell, but if history is my guide then I should see within 48 hours if this machine will be stable or keep blowing up.