datahoarder
Who are we?
We are digital librarians. Among us are represented the various reasons to keep data -- legal requirements, competitive requirements, uncertainty of permanence of cloud services, distaste for transmitting your data externally (e.g. government or corporate espionage), cultural and familial archivists, internet collapse preppers, and people who do it themselves so they're sure it's done right. Everyone has their reasons for curating the data they have decided to keep (either forever or For A Damn Long Time). Along the way we have sought out like-minded individuals to exchange strategies, war stories, and cautionary tales of failures.
We are one. We are legion. And we're trying really hard not to forget.
-- 5-4-3-2-1-bang from this thread
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I highly doubt these systems are suitable for your needs. Dual socket servers are not great in terms of power efficiency and the 1u form factor means you cannot even use some of the benefits like the high number of PCIe lanes. On top of that consumer CPUs got a lot faster in recent years so even if you need a fair bit of CPU power (normally not necessary for a NAS) you are better off getting something more modern. Your best bet is to sell off the servers and get something more suited to your needs.
I guess selling them makes most sense. Removing one of the cpus and 3/4s of the ram might be necessary to bring down the power consumption for home use. Noise is not that much of an issue as it would be placed in the cellar anyway. I am about to donate one of them to my local hackspace though (they might be interested to fiddle and get their hands on server grade stuff as some of them over there do not have access to it at work), so I still wonder how to run them as energy efficient and quiet as possible with options given on the bios by Fujitsu. I will post some findings with power consumption in a separate thread or here. Thanks!
Removing CPUs and RAM will also decrease its compute power. Disabling features also will likely remove some of the enterprise features like IPMI. You might end up getting the worst of both worlds - Not a ton of PCIe, few cores and RAM - but loud, and still pretty power hungry.