Intel® Core™ Ultra Series 3 Processors CFG and MEM Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 872351 | 04/14/2026 | 001 | Public |
MAD MC HASH 0 0 0 MCHBAR (MAD_MC_HASH_0_0_0_MCHBAR) – Offset d9b8
Holds parameters used by the CMI slice selection. Transforming from HPA (Host Physical Address) to CCA (CMI compresed address)
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 31:30 | 0h | RO | Reserved |
| 29:20 | 0h | RW | Zone1 start (Zone1_start) Address in GB of the non-interleaved portion of non-symmetric memory. |
| 19:4 | 0h | RO | Reserved |
| 3:1 | 2h | RW | Hash LSB (Hash_LSB) LSB used in MC hashing between the two MCs. |
| 0 | 1h | RW | Hash enabled (Hash_enabled) Hashing in Zone0 between the two MCs is enabled, must be set when both MCs are occupied. |