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PPR memory test passed yet the LED fault light stays ON: Resolution Guide

PPR memory test passed yet the LED fault light stays ON: Resolution Guide

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Category:: ontap-9

Specialty:: hw

Last Updated:

Applies to

AFF systems
ASA systems
FAS systems
ONTAP 9
Post Package Repair (PPR)

Issue

Node panicked due to an uncorrectable DIMM error:

PANIC: ECC error at DIMM-14: 2C-0F-1651-150A2A63,ADDR 0x7d28fefd80,(Node(0), Memory controller(0), CH(1), DIMM(0), Rank(1), Bank Group(2), Bank(0x0), in process vifmgr on release 9.7P8 (C) on Thu Dec 31 06:50:11 PST 2020 version: 9.7P8:

The DIMM was tested by PPR during boot and the DIMM passed the test per BIOS updates for memory reliability and the PPR feature.
However, upon boot up, ONTAP maintained the fault LED ON for the DIMM.