IBM xSeries 380 Hardware Maintenance Manual page 89

Table of Contents

Advertisement

"0064 MB" –
"BASE MEMORY TEST" –
"ERRORS IN MEMORY" –
"RESETTING SYSTEM" –
Upon reset, you will see the following messages on the LCD:
"First row test" –
"0064 MB" –
"BASE MEMORY TEST" –
The system will continue to boot and the following messages will appear on the
screen during POST:
1536 MB Total Memory Installed
512 MB Configured
512 MB Tested
The first line is the total memory installed (regardless of condition). The second line is
the total memory usable (and is less than the first line, only if defective DIMMs were
found). The third line counts the memory as the test is being performed. When the
test is completed, the number in this line should equal the number in the second line.
8C99: DIMMs mapped out: Upper Board, 1 - 4
8C9D: DIMMs mapped out: Upper Board, 5 - 8
User action: If the user is satisfied with the configured memory on the system, no
action is required. Otherwise, follow these steps:
1.
Determine the location of the row of defective DIMMs from the error message or
by running the EFI based SELViewer Utility. Replace the defective DIMMs (in the
example it is 5-8 and 1-4). Make sure the size and the manufacturer of DIMMs
match.
2.
Clear CMOS via the front panel or via clear CMOS jumper (see "Clearing the
CMOS register" on page 220 ) in order to clear previous defective DIMM history.
3.
Power on the system to continue.
Error logging: The defective row/DIMM(s) found during this test case will be logged
to the SEL and reported on the screen.
Case 4
This is a special case where memory errors encountered in the first row test and base
memory test can lead to an infinite loop of system resets. This special case occurs
under the following conditions:
1.
First row test encounters an SBE, base memory test encounters memory errors
and the jumper is set to 'clear CMOS' position
2.
First row test encounters an SBE, base memory test encounters memory errors
and a front panel button combination to clear CMOS has been completed.
OR
displayed on the lower LCD line
displayed on the upper LCD line
displayed on the upper LCD line
displayed on the lower LCD line (prior to resetting if an
error was found)
displayed on the upper LCD line
displayed on the lower LCD line
displayed on the upper LCD line
79
Diagnostics

Advertisement

Table of Contents
loading

Table of Contents