Memory Problem - Sun Microsystems Blade 1500 Service, Diagnostics, And Troubleshooting Manual

4.4.2

Memory Problem

There is a problem with
the memory.
Does
all of the memory have
Sun part numbers?
Y
Do memory pairs (DIMM0
and DIMM1 or DIMM2
and DIMM3) have the
same part number?
Y
Upon power on, does
the system beep three
times and power off?
Y
Go to
Q
FIGURE 4-32
N
N
Make sure memory pair
part numbers match. See
"Replacing the DIMMs"
on page 11-2.
N
Is a memory message
that provides the mem-
ory location displayed?
Y
Go to
R
Memory Problem
In normal operation, memory is invisible to the user.
Memory software problems are most likely from memory
leaks in the suspect program.
Memory hardware failures are attributed to mishandling,
power transients, and overheating.
Remove non-Sun mem-
ory. See "Removing
DIMMs" on page 11-3.
Did this solve
the problem?
Y
Return to "Power-On
Flowchart" on page 4-3.
N
Can you start the Solaris
operating system?
Y
Check memory with Sun-
VTS. See "SunVTS" on
page 9-1.
Chapter 4 Troubleshooting Flowcharts
N
N
Check memory with
POST. See "Power-On Self-
Test" on page 7-1.
4-37