Thank you for your persistence & patience.   I did some more research and according to several user experiences/statements discussed in the Dell Community threads [1, 2, 3, 4, 5] and mentioned on this websites [6, 7, 8] and clearly here, I am able to vaguely conclude the following MB/CPU compatibilities, which were mentioned … … several times: 02KVM & 0X8DXD & 0TVW7J: W-21XX 06JWJY & 0X30MX: W-22XX … only once: 0R23KR: W-21XX, W-22XX (up to TDP 140 W?!) 00XNYP: W-22XX [Dell China?]   Since I am not able to find any purchase options for the 06JWJY, I will disregard the W-22XX series. And even if I did find it, before swapping the whole MB + CPU with effort & money, I believe I should rather consider a new system. I also found this terrifying user experience, which talks about the throttling of the desired CPU W-2245. So, let’s forget about this combo.   I think we might get the W-2135 then. What do you think?  
Dear experts,   I need any CPU, which fulfils following requirements:   I'd like to clarify the specific purpose:   So which one could it be? What alternatives do I have?   Some details of the machine:   Thanks for the help!   Kind regards, piknockyou
Which CPU for 0X8DXD?