Hello, thanks for choosing Dell. It's up to you that you get a new controller to try with we can not guarantee it's gonna fix the issue: it might not be the controller also the data safety will not be guaranteed.
Hi, I have an R620 which I have been using to learn how to use VMware. It worked very well, but then I went off to sea for a few months, leaving it powered down. I turned it back on when I returned from work, and it no longer booted. On logging into the iDRAC, I could see that it wasn't booting because it could no longer see a boot volume. Looking further it could not see the RAID controller. I powered it down and re-seated the RAID controller (a PERC H710p), powered up and still no controller. Someone suggested disconnecting the battery on the RAID controller, so I tried that, and it still doesn't see the controller. I can see some of these controllers on eBay for not very much, and I'm wondering if I should just buy one, or if there is something else I should try first, or should I just give up on the R620 and get something a little newer. Any opinions or suggestions welcome  Thanks! Paul.
Poweredge R620 RAID controller disapeared!