Hi
Here’s some answers for you:-)
The difference between the 2010 and the 2012 is the cpu that comes pre installed but apart from that there is no difference (I wouldn’t let that be a decider as once you have upgraded them there is no difference at all
The difference between 4,1 and 5,1 is they use different CPU types
4,1 needs de-lidded Cpus
whereas
5,1 need ones that have a lid/heats spreader
As far as I know you can’t use a 4,1 cpu tray in a 5,1
One more thing to add if you get a 5,1 you will want to flash the firmware to5,1 so you can use better cpus
If you need any help doing this leave me a comment and il try my best to help:-)
Hopefully this answers your questions but if it doesn’t just ask me:-)
Thanks:-)
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