Owner`s manual

If the default interleave were set on this configuration, it would be one
4-way interleave (modules at nodes 7, 8, 9, and A):
>>> SET MEMORY /INTERLEAVE:DEFAULT
>>> INITIALIZE
>>> SHOW MEMORY
F E D C B A 9 8 7 6 5 4 3 2 1 0 NODE #
. . . . A4 A3 A2 A1 . . . . . . ILV
. . . . 64 64 64 64 . . . . . . 256 Mb
/INTERLEAVE:DEFAULT
The line after the ILV line displays the size of each configured memory
module and gives the total Mbytes of system memory. In Figure 6–6,
the total is 256 Mbytes.
Failing Memory
When a memory module does not pass its self-test, the boot processor tests
the memory and failing memory pages are noted. The console program
then puts the failing module in an interleave set by itself and maintains
the largest possible interleave set with the remaining modules. The failing
module is included in the configuration, but the addresses that failed self-
test are not used. If the memory at node A failed self-test, it would be
included in the configuration, but would not be interleaved with node 9. A
SHOW MEMORY command shows the interleave with a failing module at
node A:
>>> SHOW MEMORY
F E D C B A 9 8 7 6 5 4 3 2 1 0 NODE #
. . . . C1 B1 A2 A1 . . . . . . ILV
. . . . 64 64 64 64 . . . . . . 256 Mb
/INTERLEAVE:(7+8, 9+A)
Note that the /INTERLEAVE line above displays the interleave set as it is
stored in the EEPROM. The ILV line shows the configuration actually in
effect, including any changes due to self-test failures or incorrect interleave
lists.
To exclude a memory that is failing self-test, you use the SET MEMORY
command, without designating the node you want to exclude. In this
example, to exclude the memory at node A:
>>> SET MEMORY /INTERLEAVE:(7+8, 9)
>>> INITIALIZE
>>> SHOW MEMORY
F E D C B A 9 8 7 6 5 4 3 2 1 0 NODE #
....-B1A2A1...... ILV
.....646464...... 192Mb
/INTERLEAVE:(7+8, 9)
System Self-Test and Troubleshooting 6–13