https://community.hpe.com/t5/proliant-servers-ml-dl-sl/1783-slot-0-array-controller-is-in-a-lock-up-state/m-p/6966203#M157756 <P>Following is the screen shot of the error when server starts.&nbsp;</P><P>&nbsp;</P> Mon, 29 May 2017 11:24:06 GMT karrar1065 2017-05-29T11:24:06Z https://community.hpe.com/t5/proliant-servers-ml-dl-sl/1783-slot-0-array-controller-is-in-a-lock-up-state/m-p/6966203#M157756 <P>Following is the screen shot of the error when server starts.&nbsp;</P><P>&nbsp;</P> Mon, 29 May 2017 11:24:06 GMT https://community.hpe.com/t5/proliant-servers-ml-dl-sl/1783-slot-0-array-controller-is-in-a-lock-up-state/m-p/6966203#M157756 karrar1065 2017-05-29T11:24:06Z https://community.hpe.com/t5/proliant-servers-ml-dl-sl/1783-slot-0-array-controller-is-in-a-lock-up-state/m-p/6966229#M157759 <P>Looks like an old system ...</P><P>Consider to remove the cable to the disks and check if the error remains.</P><P>Disconnect the cache module, if possible and present.</P><P>If the issue remains, the controller is likely defective. Depending on the hardware it is integrated into the system board or a single module.</P> Mon, 29 May 2017 12:00:26 GMT https://community.hpe.com/t5/proliant-servers-ml-dl-sl/1783-slot-0-array-controller-is-in-a-lock-up-state/m-p/6966229#M157759 Torsten. 2017-05-29T12:00:26Z https://community.hpe.com/t5/proliant-servers-ml-dl-sl/1783-slot-0-array-controller-is-in-a-lock-up-state/m-p/6966413#M157783 <P>Probably its the BBWC. Replace it by a new 413486-001 (128MB cache module) for the DL380G4</P> Tue, 30 May 2017 11:36:27 GMT https://community.hpe.com/t5/proliant-servers-ml-dl-sl/1783-slot-0-array-controller-is-in-a-lock-up-state/m-p/6966413#M157783 PZel 2017-05-30T11:36:27Z