Server Memory -- # of pins ?

I have a Dell PowerEdge T630 and crucial.com
says both CT4K16G4RFD4213 with 288 pins
and CT4K16G4VFD4213 with 168 pins will fit.

1. Is that possible ?
2. What do PINS do to effect performance/etc ?
finance_teacherAsked:
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kulboyCommented:
According to the owner manual of your system folowing memory is supported:

Your system supports DDR4 registered DIMMs (RDIMMs), and load reduced DIMMs (LRDIMMs). It
supports DDR4 voltage specifications.
NOTE: MT/s indicates DIMM speed in MegaTransfers per second.
Memory bus operating frequency can be 2133 MT/s, 1866 MT/s, 1600 MT/s, or 1333 MT/s depending on:
• DIMM type ( RDIMM or LRDIMM)
• Number of DIMMs populated per channel
• System profile selected (for example, Performance Optimized, Custom, or Dense Configuration
Optimized)
• Maximum supported DIMM frequency of the processors
The system contains 24 memory sockets split into two sets of 12 sockets, one set per processor. Each 12-
socket set is organized into four channels. In each channel, the release levers of the first socket are
marked white, the second socket black, and the third socket green.
NOTE: DIMMs in sockets A1 to A12 are assigned to processor 1 and DIMMs in sockets B1 to B12 are



Check page 59 from the guide:
https://topics-cdn.dell.com/pdf/poweredge-t630_Owner's%20Manual_en-us.pdf
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