Memory Test Duration - HP Integrity rx4610 User Manual

Chapter 11: Troubleshooting
A second set of messages will be seen later in the POST that indicates where the memory test found
errors. The sequence is as follows:
8C81: Error in memory subsystem: Upper Board, DIMM 17
8C82: ERRORS FOUND IN MEMORY SUBSYSTEM. FAILING ROWS WILL BE MAPPED
OUT ON THE NEXT RESET. IT IS STRONGLY SUGGESTED THAT YOU RESET THE
SYSTEM NOW.ALLOWING THE SYSTEM TO CONTINUE TO BOOT MAY RESULT IN
UNSTABLE SYSTEM BEHAVIOR AND/OR HARD DISK CORRUPTION.
Hit <F1> to load defaults or <F2> to run SETUP or <ESC> to continue
The first line will be seen for each DIMM that on which the extended memory test has found an error.
This message will NOT be seen on subsequent POSTs.
The second and the third line will be seen each time a memory error was found by the extended
memory test.
User Action
Upon getting the notification of memory errors during extended memory testing, HP strongly
recommends that the server be reset by pressing the reset button. On the subsequent boot, the
defective DIMMs, found during extended memory testing, will be mapped out and will not be
available as part of the useable memory. Failure to do the reset would result in an unstable behavior
of the system.
Under 'User Notification' in Example #2, the following error message can be seen if the system is
reset.
32768 MB Total Memory Installed
30720 MB Configured
30720 MB Tested
8C9B: DIMMs mapped out: Upper Board, 17-20
NOTE:
Error Logging
For the extended memory test, four error records will be written for multi-bit errors, one for each
DIMM. For single-bit-errors during the extended memory test, error records will be one per DIMM.
By specifications, the DIMM number will be one less than the silk-screened number on the printed-
circuit board. Please refer to Error Log Format Specification Version 0.7 for details on the format of
the error records.

Memory Test Duration

The time it takes for memory test depends on the size of memory and the exact population scheme.
The more memory that is tested, the longer this test takes, with a full test taking a significant amount
of time. To alleviate this problem, skipping memory locations can be done, but this does not exercise
the entire memory subsystem. To reach a compromise, there will be CMOS Setup options available
to the user. These CMOS options will allow a user to select a quick memory test or an exhaustive
one. Refer to the section on "Setup Dialog" section below for more information on the options.
On the above example, we do NOT see "Memory Errors Detected", because the
defective memory has been mapped out. This is shown because the second line
configured size is less than the first.
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