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- I have a Z840 with the latest BIOS and looking to upgrade to...

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12-26-2022 09:52 PM
I bought this Z840 workstation used with two E5-2690 V3. After two years I upgraded for some E5-2699 V3 and they are running fine.
Now, I'd like to go to the top V4 version (22 cores vs 18) of the same CPUs. I see on eBay there are some E5-2699C V4 that are somewhat cheaper then the E5-2699 V4. From the research I have done, it seems the 'C' variant had an FPGA option.
Can the 'C' variant of the E5-2699 V4 be used in my Z840?
12-27-2022 10:01 AM
the 2699 A / C / R / P versions are OEM models, and in your case the "C" stands for Sun Microsystems only the "R" suffix is unique as it's a embedded cpu package
there are no "known" differences between the retail non "C" and "C" versions of the E5-2699 other than the Turbo steps
https://en.wikipedia.org/wiki/List_of_Intel_Xeon_processors_(Broadwell-based)#Xeon_E5-2699C_v4