16-16 Vol. 3B
INTERPRETING MACHINE-CHECK ERROR CODES
16.6.1 Internal Machine Check Errors
Table 16-20. Machine Check Error Codes for IA32_MC4_STATUS
Type
Bit No. Bit Function
Bit Description
MCA error codes
1
NOTES:
1. These fields are architecturally defined. Refer to Chapter 15, “Machine-Check Architecture,” for more information.
15:0
MCACOD
MCACOD
2
15:0
internal Errors
0402h - PCU internal Errors
0403h - PCU internal Errors
0406h - Intel TXT Errors
0407h - Other UBOX internal Errors.
On an IERR caused by a core 3-strike the IA32_MC3_STATUS (MLC) is copied
to the IA32_MC4_STATUS (After a 3-strike, the core MCA banks will be
unavailable).
Model specific errors 19:16
Reserved except for
the following
0000b - No Error
00xxb - PCU internal error
23-20
Reserved
Reserved
31-24
Reserved except for
the following
00h - No Error
09h - MC_MESSAGE_CHANNEL_TIMEOUT
13h - MC_DMI_TRAINING_TIMEOUT
15h - MC_DMI_CPU_RESET_ACK_TIMEOUT
1Eh - MC_VR_ICC_MAX_LT_FUSED_ICC_MAX
25h - MC_SVID_COMMAND_TIMEOUT
29h - MC_VR_VOUT_MAC_LT_FUSED_SVID
2Bh - MC_PKGC_WATCHDOG_HANG_CBZ_DOWN
2Ch - MC_PKGC_WATCHDOG_HANG_CBZ_UP
44h - MC_CRITICAL_VR_FAILED
46h - MC_VID_RAMP_DOWN_FAILED
49h - MC_SVID_WRITE_REG_VOUT_MAX_FAILED
4Bh - MC_BOOT_VID_TIMEOUT. Timeout setting boot VID for DRAM 0.
4Fh - MC_SVID_COMMAND_ERROR.
52h - MC_FIVR_CATAS_OVERVOL_FAULT.
53h - MC_FIVR_CATAS_OVERCUR_FAULT.
57h - MC_SVID_PKGC_REQUEST_FAILED
58h - MC_SVID_IMON_REQUEST_FAILED
59h - MC_SVID_ALERT_REQUEST_FAILED
62h - MC_INVALID_PKGS_RSP_QPI
64h - MC_INVALID_PKG_STATE_CONFIG
67h - MC_HA_IMC_RW_BLOCK_ACK_TIMEOUT
6Ah - MC_MSGCH_PMREQ_CMP_TIMEOUT
72h - MC_WATCHDG_TIMEOUT_PKGS_MASTER
81h - MC_RECOVERABLE_DIE_THERMAL_TOO_HOT
56-32
Reserved
Reserved
Status register
validity indicators
1
57-63