Seeking Advice: Unraid Installation on Dell PowerEdge T420

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I've scored two Dell PowerEdge T420 servers at a steal on Facebook Marketplace. I'm gearing up to install Unraid on one of them, and could use any insights available. Will Unraid play nice with iDRAC? Also, I've seen theres talk about flashing the RAID controller - any firsthand experiences or risks I should be aware of doing that process? Your insights mean a lot!

I did find out that these servers were used for Chia crypto mining. I'm bracing to swap out hard drives over time.

Here's the scoop on the setups:

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Server A
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Make/model: Dell PowerEdge T420
Service Tag: 4RM4P22
CPU: Xeon E5-2440
Memory: 32GB
OS: Windows Server 2019 Standard
Storage: About 14.5TB
2 x 1TB Dell SATA
2 x 2TB Dell SAS
2 x 2TB Dell SATA
1 x 2TB Toshiba
1 x 2TB Hitachi SATA
1 x 500GB Toshiba SATA (connected to internal SATA port) (current OS location)

Also has a dedicated iDRAC Enterprise port.


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Server B
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Make/model: Dell PowerEdge T420
Service Tag: 2Y59J02
CPU: Intel Xeon E5-2440
Memory: 32GB
OS: Windows Server 2019 Standard
Storage: About 14.3TB
2 x 3TB Dell SAS
1 x 300GB Dell SAS (current OS location)
1 x 2TB Toshiba SATA
1 x 1TB Dell SATA
1 x 1TB Seagate SATA
2 x 1TB Dell SAS
2 x 1TB Seagate SATA (connected to internal SATA ports)

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