Datasheet

Processor Uncore Configuration Registers
448 Datasheet, Volume 2
4.2.16.8 CORRERRCNT_0—Corrected Error Count Register
This register has per Rank corrected error counters.
CORRERRCNT_0
Bus: 1 Device: 16 Function: 2 Offset: 104h
Bus: 1 Device: 16 Function: 3 Offset: 104h
Bus: 1 Device: 16 Function: 6 Offset: 104h
Bus: 1 Device: 16 Function: 7 Offset: 104h
Bit Attr
Reset
Value
Description
31 RW1CS 0b
RANK 1 OVERFLOW
The corrected error count for this rank has been overflowed. Once set, it can only
be cleared using a write from BIOS.
30:16 RWS-V 0000h
RANK 1 CORRECTABLE ERROR COUNT
The corrected error count for this rank. Hardware automatically clear this field
when the corresponding OVERFLOW_x bit is changing from 0 to 1.
This counter increments in number of cacheline accesses – not by codewords. On
a read access, if either of the codewords or both codewords have a corrected
error, this counter increments by 1.
Register: DEVTAG_CNTL<Rank>, Field FAILDEVICE: This field is updated once per
cacheline access not by codeword. On a read access, the device is logged as
follows:
Corr_Err_On_CodeWord_0 Corr_Err_On_CoreWord_1 Device Logged
Yes No Corrected Device
from CodeWord0
No Yes Corrected Device
from CodeWord1
Yes Yes Corrected Device
from CodeWord0
15 RW1CS 0b
RANK 0 OVERFLOW
The corrected error count for this rank has been overflowed. Once set it can only
be cleared using a write from BIOS.
14:0 RWS-V 0000h
RANK 0 CORRECTABLE ERROR COUNT
The corrected error count for this rank. Hardware automatically clear this field
when the corresponding OVERFLOW_x bit is changing from 0 to 1.
This counter increments in number of cacheline accesses – not by codewords. On
a read access, if either of the codewords or both codewords have a corrected
error, this counter increments by 1.
Register: DEVTAG_CNTL<Rank>, Field FAILDEVICE: This field is updated once per
cacheline access not by codeword. On a read access, the device is logged as
follows:
Corr_Err_On_CodeWord_0 Corr_Err_On_CoreWord_1 Device Logged
Yes No Corrected Device
from CodeWord0
No Yes Corrected Device
from CodeWord1
Yes yes Corrected Device
from CodeWord0