Why ML150G3 always reboot by itself?

[Netwolf]

My ML150G3 was installed on Jan 2, 2007, and its O.S. is OpenSUSE 10.2. This server always reboot by itself during from July until now. I checked my O.S. which is no problem. But I got the following SEL from IPMI.

SEL Entry Number = 151
SEL Record ID = 0BCC
SEL Record Type = 02 - System Event Record
Timestamp = 09/14/2007 19:27:59
Generator ID = 20 00
SEL Message Rev = 04
Sensor Type = 23 - Watchdog 2
Sensor Number = FE - Watchdog
SEL Event Type = 6F - Sensor-specific
Event Description = Timer Expired
SEL Event Data = C0 03 FF

[Charles Hodge]

Not sure why this is happening, but I get the same exact problem and output from IPMI on my ML150G3. Server reboots unexpectedly at random times. Does anyone know with what hardware this problem is associated?