Donc oui tu peux mettre qu'une seule 16go :
DDR4-2133 ECC Registered DIMMs
16GB DDR4-2133 ECC Registered RAM J9P83AA 1,2,3
8GB DDR4-2133 ECC Registered RAM J9P82AA 1,2,3
4GB DDR4-2133 ECC Registered RAM J9P81AA 1,2,3
NOTES:
For details on the supported memory configurations on the HP Z440 Workstation, please refer to the
System Technical Specifications - System Board section of this document.
Each processor supports up to 4 channels of DDR4 memory. To realize full performance at least 1
DIMM must be inserted into each channel.