We recently purchased a ML G6 HP ProLiant Server and it has been successfully working for several weeks. When I entered the office today I was greeted by a message saying the server hadn't shut down properly, after investigation I found out that the system had been rebooting several times an hours for the last 18 hours.
The system is a HP Proliant ML 150 G6 installed with Microsoft SBS 2008, with all updates. Includes 3 x RAID disks and 10 GB Memory.
I have checked the following:
-Removed UPS system, just in case that was causing a power problem.
-Checked for minidump files (configured correctly but none produced)
-Unplugged from network and disconnected all external devices (except monitor, keyboard)
-Checked for recently upgraded antivirus or OS updates: none
-Swapped the redundant Power supplies.
-No new software installed recently
But cannot find out what is causing the continuous reboots. The reboots don't happen all the time, the system will boot into SBS and work for sometimes 30-40 minutes but then it will reboot.
The server handles emails, so I need it to be online ASAP but cannot figure out what is causing the problem. The only thing I can think of is a hardware problem.
Any suggestions? Or ways of testing?