[Linux-PowerEdge] Clearing memory errors

Ben bda20 at cam.ac.uk
Tue Aug 26 08:24:30 CDT 2014

We recently had an R720 exceed memory errors for a DIMM (16GB).  We got a 
replacement and swapped it in.  During which time the power cables were 
removed and the power button held down for 20+ seconds.

However, on reboot, although the DRAC GUI says all is well, we see this with 

# omreport chassis

Main System Chassis

Ok       : Fans
Ok       : Intrusion
Critical : Memory

# omreport chassis memory
Memory Information

Health : Critical

Attributes of Memory Array(s)

Attributes of Memory Array(s)
Location           : System Board or Motherboard
Use                : System Memory
Installed Capacity : 131072  MB
Maximum Capacity   : 1572864  MB
Slots Available    : 24
Slots Used         : 8
Error Correction   : Multibit ECC

Total of Memory Array(s)
Total Installed Capacity                     : 131072  MB
Total Installed Capacity Available to the OS : 2974  MB
Total Maximum Capacity                       : 1572864  MB

Details of Memory Array 1
Index          : 0
Status         : Critical
Connector Name : DIMM_A1
Type           : DDR3 - Synchronous Registered (Buffered)
Size           : 16384  MB

# omreport chassis memory index=0
Memory Device Information

Health : Critical

Status      : Critical
Device Name : DIMM_A1
Size        : 16384 MB
Type        : DDR3 Synchronous Registered (Buffered)
Speed       : 0.54 ns
Rank        : Dual
Failures    : Single-bit failure error rate exceeded.

Any ideas how to clear this, please?

Unix Support, UIS, University of Cambridge, England

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