Dear All,

I have a PowerEdge R720xd. In OMSA I see this error:

"Single-bit ECC error. The controller DIMM is nonfunctional. There will be no further reporting.: Controller 0 (PERC
H710 Mini)"

Looking at the details of the error code (2321) it says:

"Action: Replace the DIMM immediately. The DIMM is a part of the controller battery pack. See your hardware documentation for information on replacing the DIMM."

It is my understanding, however, that the DIMM in the H710 mini is built into the controller and I need to replace the controller.

I have three questions:

1. I need to replace the PERC H710 Mini. Is this correct?

2. Should I shut down the machine until I replace the piece to minimize risk of data loss?

3. Can someone confirm the part number? I think the DELL part number of the piece is MCR5X with manufacturer part number 405-12070. But I am unable to find it via  https://www.dell.com/en-us/shop/partsforyourdell/index (using either the service tag or the part number).  (The info I have I got from the purchase order and https://www.dell.com/support/home/us/en/19/Configuration/ServiceTag/)

Thanks