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system, if the first row test encounters a MBE, the BIOS will display an error message
on the front panel LCD and halt the system.
User notification: This memory test occurs during POST and prior to video sync.
Therefore, any error found during this test will result in the following message
displayed on the LCD panel.
"First row test"
"Failed, sys halt"
User action: This memory failure must be fixed and can only be fixed by replacing
the bad row of DIMMs.
Replace the first row of DIMMs. Determine the location of the defective row using the
table at "First row memory test" on page 74. Starting with #1 in the "Order" column,
determine the "DIMM" locations (5-8 in this example) and memory board (upper in
this example). If memory is populated in these DIMM locations then this is the first
row and has defective memory. If not, the next set, if populated, becomes the first
row. Repeat until you have determined the first memory row. On replacing the
DIMMs, make sure the size and manufacturer match.
Clear CMOS via the front panel or via clear CMOS jumper in order to clear previous
defective DIMM history. For more information on how to clear CMOS, see "Clearing
the CMOS register" on page 220.
Power on the system.
Error logging: The defective row/DIMM(s) found during this test cannot be logged
to the SEL or reported on screen.
Case 2
The system is populated with only one row of memory and the first row memory test
encounters a SBE (Single Bit Error). In this case, the BIOS will write these rows into
CMOS history, map out the only row of DIMMs, and halt the system.
User notification: This memory test occurs during POST and prior to video sync.
Therefore, any error found during this test will result in the following message
displayed on the LCD panel and the system will halt.
"First row test" –
"0064 MB" –
"ALL DIMM MAP OUT" –
Example 1: Consider a system that is populated with only one row of 128 MB DIMMS
in the upper board row 1-4. If an SBE was detected in DIMM 1 during the first row
memory test, the following message will appear on the LCD:
"First row test" –
"0064 MB" –
"ALL DIMM MAP OUT" –
User action:
1.
Replace the first row of DIMMs. On replacing the DIMMs, make sure the size and
manufacturer match.
displayed on the upper LCD line
displayed on the lower LCD line
displayed on the upper LCD line
displayed on the upper LCD line
displayed on the lower LCD line
displayed on the upper LCD line
75
Diagnostics
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