I have no problem to install Power Manger or Rack and Power Manager on the DL380G4, but whenever I installed the HPSIM 4.1 on the same server, the serial connection between the DL380G4 and R3000XR will drop, so Power Manager or Rack n Power Manager will not detect the R3000XR anymore. Have anyone face the same problem? I tried the same installation on a DL380G2 server and do not have such problem. Don't know why this DL380G4 giving me such hard time??