buildzoid

2x16 Micron A-die DDR5 on MSI Z690 Unify X

Added 2022-07-20 23:58:22 +0000 UTC

CPU: i9 12900K
Cooling: Zalman CNPS 9900 Max
mobo: MSI Z690 Unify X
RAM: Crucial 2x16GB single rank Micron 16Gb A-die

RAM / IMC voltages
VCCSA: 1.0V // upto 1.45V is safe
VCCINAUX: 2V // upto 2V is safe
CPU VDDQ: 1.1V // upto 1.45V is safe (part of the DRAM VDD/VDDQ setting)
CPU VDD2: 1.2V // upto 1.6V is safe
RAM VDD: 1.4V (1.62V set on renesas PMIC) // upto 1.6V is safe
RAM VDDQ: 1.4V (1.62V set on renesas PMIC) // upto 1.6V is safe

RAM speed and timings
Speed: 5400Mbps
PRIMARY TIMINGS----------------------------------
tCL: 40
tRCD: 38
tRP: 38
tRAS: 44
tCR: 2T

SECONDARY TIMINGS-------------------------------
tRRD_L: 8
tRRD_S: 4
tFAW: 16
tRFC: 432(AUTO)
tRFCpb: 351(AUTO)
tREFI: 65000
tCKE: 4
tCWL: 38
tWRPRE: 75
tWRPDEN: 75
tRDPRE: 4

TERTIARY TIMINGS-----------------------------------
tRDRD_sg: 9
tRDRD_dg: 7
tRDWR_sg: 15
tRDWR_dg: 15
tWRWR_sg: 19
tWRWR_dg: 7
tWRRD_sg: 64
tWRRD_dg: 50
tXP: 4
any timings not listed above should be left on auto.

Stress tests passed
500% HCI memtest
Testmem5 Extreme1 anta777

Performance

CPU: 4.8GHz core 4.6GHz cache
intel MLC GUI Latency best: 57.91ns
AIDA64 Read: 89GB/s
AIDA54 Write: 84GB/s
AIDA64 Copy: 84GB/s
AIDA64 Latency: 61.8ns

Comments:
Micron DDR5 16Gb A-die is currently the slowest of the available DDR5 ICs. It doesn't clock very high and the primary timings really suck. A lof the subtimings also kinda suck.