Approved: Fortect
Recently, some readers have reported an error when trying to log out. A recoverable memory error is a one-second error that occurs when a bit transitions from 1 to 0, or possibly 0 to 1, during an expand or read operation. When a particular erroneous bit tad is identified, the error is always corrected by modifying the erroneous bit.
This line describes how to accurately identify and detect problems with Dual Inline Memory Modules (DIMMs) on a server. It contains the following topics:
| Link, for example Link name=”50556951_pgfId-1013956″> to the Requirements Guide or Service Tag for the approach you are using in the DIMM population rule information. |
DIMM Replacement Recommendations
Replace the specific DIMM in any of the following cases:
| Note. |
Be sure to keep copies of the memory error logs so that Sun has time to review them before calling Sun.
How The System Handles DIMM Errors
Fatal DIMM Errors
For all systems doing this work, the behavior of unrecoverable errors (UCE) is the same:
What is DIMM failure?
What is considered a DIMM error? A mental error is an event that causes the logical state of one or more elements to read differently than when they were last written. For example, if a 1 is to be written to a memory location, and even if the same memory location is read, 0 will be resurrected.
1. When the ECU occurs, the controller memory causes the system to quickly restart.
2. After a reboot, the BIOS checks the machine check registers and determines that the previous PC reboot was caused by ECU a. Name=”50556951_pgfId-1007068″>
How do I fix correctable memory error?
Possible solutions. Most correctable and uncorrectable memory errors can be corrected with a reliable BIOS update. See patch notes in the server BIOS. Run Insight Diagnostics but also replace the failed part.
Correct DIMM Errors
If a DIMM has 24 or more Correctable Errors (CE) within 24 hours, it is considered defective and should be replaced.
Approved: Fortect
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CEs terminate as in the captured SEL and turn on a major error indicator after 24 single-bit errors are detected in 24 hours. They are reported or processed in the supported host systems as follows:
c. Display one by one (according to the error time), display information about the error.
Solaris FMA frequently reports and clears error-correcting code (ECC) memory. See the Solaris documentation for more information.
DIMM Error Indicator
What causes DIMM failures?
Recommendations for replacing DIMMs DIMM stops memory tests in BIOS due to unrecoverable memory errors (UCE). ECUs occur and the evaluation shows that the errors are memory related.
FIG. 2-1 and FIG. Figure 2-2 shows the location of the return button and indicator on the motherboard.
Isolating And Fixing DIMM ECC Errors
If your log file types are reporting an ECC (Error Correction Code) error as well as a problem with the DIMM, follow these steps until you are likely to isolate that he may be wrong.
In this study, the log file reports a DIMM error in D0. DIMM Fault LED D0 is on.
1. If your site hasn’t done so yet, completely hibernate the server and clear the cache.
2. Check the specific DIMM installed to ensure that it complies with the DIMM filling rules outlined in this Product Service Guide during use.
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