15:12

0h

RO

Reserved

11

0b

RW

MC1 DDR5 CRC Error (MC1_​DDR5_​CRC)

1: The Host Bridge generates an SERR message over DMI when it detects a CRC error reported by the DRAM controller.
0: Reporting of this condition via SERR messaging is disabled. For systems not supporting DDR5 CRC this bit must be disabled.

10

0b

RW

MC0 DDR5 CRC Error (MC0_​DDR5_​CRC)

1: The Host Bridge generates an SERR message over DMI when it detects a CRC error reported by the DRAM controller.
0: Reporting of this condition via SERR messaging is disabled. For systems not supporting DDR5 CRC this bit must be disabled.

9

0b

RW

Data Uncorrectable Error (MC1_​DMERR)

1: The Host Bridge generates an SERR message over DMI when it detects a multiple-bit error reported by the DRAM controller.
0: Reporting of this condition via SERR messaging is disabled. For systems not supporting ECC this bit must be disabled.

8

0b

RW

Data Single Bit Correctable Error (MC1_​DSERR)

1: The Host Bridge generates an SERR special cycle over DMI when the DRAM controller detects a single bit error.
0: Reporting of this condition via SERR messaging is disabled.
For systems that do not support ECC this bit must be disabled.

7

0b

RO

IBECC Uncorrectable Error (IBECC_​UC)

This bit is deprecated and kept for backwards compatibility.
IBECC error messages are logged in the MCA bank.

6

0b

RO

IBECC Correctable Error (IBECC_​COR)

This bit is deprecated and kept for backwards compatibility.
IBECC error messages are logged in the MCA bank.

5

0b

RW

SERR on FMHC Unsupported Request Event (FMUR)

SERR on FMHC unsupported request event
1: The Host Bridge generates an SERR special cycle over DMI when FMHC reports an unsupported request event.
0: Reporting of this condition via SERR messaging is disabled.

4

0b

RW

SERR on FMHC CA Event (FMCA)

SERR on FMHC CA event
1: The Host Bridge generates an SERR special cycle over DMI when FMHC reports a CA event.
0: Reporting of this condition via SERR messaging is disabled.

3

0b

RW

SERR on FMI Asynchronous Notification (FMIAN)

SERR on FMI Asynchronous Notification error event
1: The Host Bridge generates an SERR special cycle over DMI when FMHC reports a Asynchronous Notification error event with Media dead or Health log critical notification.
0: Reporting of this condition via SERR messaging is disabled.

2

0b

RW

SERR on FMHC Thermal Event (FMITHERMERR)

SERR on FMHC thermal event
1: The Host Bridge generates an SERR special cycle over DMI when FMHC reports a thermal event.
0: Reporting of this condition via SERR messaging is disabled.

1

0b

RW

Data Uncorrectable Error (MC0_​DMERR)

1: The Host Bridge generates an SERR message over DMI when it detects a multiple-bit error reported by the DRAM controller.
0: Reporting of this condition via SERR messaging is disabled. For systems not supporting ECC this bit must be disabled.

0

0b

RW

Data Single Bit Correctable Error (MC0_​DSERR)

1: The Host Bridge generates an SERR special cycle over DMI when the DRAM controller detects a single bit error.
0: Reporting of this condition via SERR messaging is disabled.
For systems that do not support ECC this bit must be disabled.