Specifically, the Machine Check Control registers.
| Legacy MSR | 0x0000_0400 |
| New MSR | 0xC000_2000 |
| Bit | Name | Description |
| 20 | L2DataErr | |
| 19 | DcTagErr5 | |
| 18 | DcTagErr3 | |
| 17 | PDC | |
| 16 | L2DTLB | |
| 15 | DcTagErr4 | |
| 14 | DcDataErr3 | |
| 13 | DcDataErr2 | |
| 12 | DcDataErr1 | |
| 11 | DcTagErr2 | |
| 10 | SystemReadDataErrorT1 | |
| 9 | SystemReadDataErrorT0 | |
| 8 | IntErrTyp2 | |
| 7 | IntErrTyp1 | |
| 6 | DcTagErr1 | |
| 5 | DcTagErr6 | |
| 3 | L1DTLB | |
| 2 | MAB | |
| 1 | STQ | |
| 0 | LDQ | |
| Legacy MSR | 0x0000_0404 |
| New MSR | 0xC000_2010 |
| Bit | Name | Description |
| 13 | SystemReadDataError | |
| 12 | L2RespPoison | |
| 11 | L2BtbMultiHit | |
| 10 | L1BtbMultiHit | |
| 9 | BpqSnpParT1 | |
| 8 | BpqSnpParT0 | |
| 7 | L2ItlbParity | |
| 6 | L1ItlbParity | |
| 5 | L0ItlbParity | |
| 4 | DqParity | |
| 3 | DataParity | |
| 2 | TagParity | |
| 1 | TagMultiHit | |
| 0 | OcUtagParity | |
| Legacy MSR | 0x0000_0408 |
| New MSR | 0xC000_2020 |
| Bit | Name | Description |
| 3 | Hwa | |
| 2 | Data | |
| 1 | Tag | |
| 0 | MultiHit | |
| Legacy MSR | 0x0000_040C |
| New MSR | 0xC000_2030 |
| Bit | Name | Description |
| 8 | OCBQ | |
| 7 | UcSeq | |
| 6 | UcDat | |
| 5 | Faq | |
| 4 | Idq | |
| 3 | UopQ | |
| 2 | Ibq | |
| 1 | OcDat | |
| 0 | OcTag | |
This MCA bank has been disabled in Family 17h. It returns zeros and ignores writes.
| Legacy MSR | 0x0000_0414 |
| New MSR | 0xC000_2050 |
| Bit | Name | Description |
| 10 | BBQ | |
| 9 | SQ | |
| 8 | STATQ | |
| 7 | RETDISP | |
| 6 | CHKPTQ | |
| 5 | PLDAL | |
| 4 | PLDAG | |
| 3 | IDRF | |
| 2 | FRF | |
| 1 | PRF | |
| 0 | WDT | |
| Legacy MSR | 0x0000_0418 |
| New MSR | 0xC000_2060 |
| Bit | Name | Description |
| 6 | HWA | |
| 5 | SRF | |
| 4 | RQ | |
| 3 | NSQ | |
| 2 | SCH | |
| 1 | FL | |
| 0 | PRF | |
| Legacy MSR | 0x0000_04[1C,20,24,28] (CCX0), [2C,30,34,38] (CCX1) |
| New MSR | 0xC000_20[7-A]0 (CCX0), [B-E]0 (CCX1) |
| Bit | Name | Description |
| 7 | HWA | |
| 6 | XiVictimQueue | |
| 5 | SdpParity | |
| 4 | DataArray | |
| 3 | MultiHitTag | |
| 2 | Tag | |
| 1 | MultiHitShadowTag | |
| 0 | ShadowTag | |
| Legacy MSR | 0x0000_0450 (CS0), 454 (CS1) |
| New MSR | 0xC000_2140 (CS0), 2150 (CS1) |
| Bit | Name | Description |
| 8 | SPF_ECC_ERR | |
| 7 | ATM_PAR_ERR | |
| 6 | SDP_PAR_ERR | |
| 5 | FTI_PAR_ERR | |
| 4 | FTI_RSP_NO_MATCH | |
| 3 | FTI_ILL_RSP | |
| 2 | FTI_SEC_VIOL | |
| 1 | FTI_ADDR_VIOL | |
| 0 | FTI_ILL_REQ | |
| Legacy MSR | 0x0000_0458 |
| New MSR | 0xC000_2160 |
| Bit | Name | Description |
| 3 | FTI_DAT_STAT | |
| 2 | GMI | |
| 1 | CSW | |
| 0 | HW_ASSERT | |
| Legacy MSR | 0x0000_043C (umc0?), (? 0x0000_0440 umc1?) |
| New MSR | 0xC000_20F0 (umc0?), (? 0xC000_2100 umc1?) |
| Bit | Name | Description |
| 5 | WriteDataCrcErr | A write data CRC error on the DRAM data bus |
| 4 | AddressCommandParityErr | |
| 3 | ApbErr | |
| 2 | SdpParityErr | |
| 1 | WriteDataPoisonErr | |
| 0 | DramEccErr | An ECC error on DRAM read |
| Legacy MSR | 0x0000_044C |
| New MSR | 0xC000_2130 |
| Bit | Name | Description |
| 0 | EccError | An error in the Parameter Block RAM array |
| Legacy MSR | 0x0000_0448 |
| New MSR | 0xC000_2120 |
| Bit | Name | Description |
| 0 | PspMemoryError | |
| Legacy MSR | 0x0000_0444 |
| New MSR | 0xC000_2110 |
| Bit | Name | Description |
| 0 | SmuMemoryError | |