we've PRIMERGY RX2540 M1 SERVER. We are facing Server hanging issue frequently. black screen ,no response to mouse and keyboard. until power recycle we cant able to see anything. during the hanging time Power LED's are flashing. at first time we thought power options problem like sleep mode. we've changed to never sleep kind of options. also observed that network communication loss during the hanging time.
can anyone please give a solution for this problem.
What exactly are you referring to with the term "Power LEDs"? In order to determine the root cause of the observed behavior, you'd probably want to examine the logs of the Operating System executed on the server, and the System Event Log of the Management controller chip iRMC on the mainboard.
In either of them you might find indications for the trouble reasons.