Chapter 11 Power-On Self-Test 11-15
The DIMM in slot DIMM0 was at fault. Several other error messages were displayed,
and a summary was provided:
The DIMM in slot DIMM0 should be replaced. Because memory works in pairs,
POST disables both slots DIMM0 and DIMM1. POST returns system status and
control back to the OpenBoot PROM which then displays messages regarding the
results of POST.
For example:
Because of the error, two DIMM slots have been disabled (bank0), so only half of the
original memory (2048/4096MBytes) is available for use.
Note – If only two DIMMs were installed and this set of errors occurred, the system
would have beeped three times and powered off.
11.4.2 Warning Messages
Warning messages have a structure similar to error messages, however the messages
are bounded by the text WARNING and END_WARNING. Warning messages do not
contain a Repair Instructions line.
0>ERROR:
0> POST top level status has the following failures:
0> CPU0: Bank 0 DIMM0, Motherboard
0> CPU0: Bank 1 DIMM0, Motherboard
0>END_ERROR
Power On Selftest Failed.
CPU: 0 cause: CPU0: Bank 0 DIMM0, Motherboard
ERROR: CPU0 has 2048/4096MB of memory disabled
ERROR: POST failed
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