Lenovo ThinkServer RD120 Hardware Maintenance Manual page 148

v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See Chapter 3, "Parts listing, ThinkServer RD120 Machine Types 6444, 6445, 6446, and 6447," on page 25
to determine which components are customer replaceable units (CRU) and which components are field
replaceable units (FRU).
v If an action step is preceded by "(Trained service technician only)," that step must be performed only by a
trained service technician.
Beep code
3-3-1
3-3-2
130
ThinkServer RD120 server Machine Types 6444, 6445, 6446, and 6447: Hardware Maintenance Manual
Description
Memory size mismatch occurred.
Critical SMBUS error occurred.
Action
1. Reseat the following components, one at a
time, in the order shown:
a. DIMMs
b. Battery
2. Replace the components listed in step 1,
one at a time, in the order shown.
Attention: In a dc power environment, only
trained service personnel other than Lenovo
service technicians are authorized to connect
or disconnect power to the dc power supply.
See the documentation that comes with each
dc power supply.
1. Disconnect the server power cord from the
outlet and wait 30 seconds; then,
reconnect the power cord and restart the
server.
2. Reseat the following components, one at a
time, in the order shown:
a. DIMMs
b. Hard disk drive backplane
c. Power supply
Attention: In a dc power
environment, only trained service
personnel other than Lenovo service
technicians are authorized to connect
or disconnect power to the dc power
supply and to install and remove a dc
power supply. See the documentation
that comes with each dc power supply.
3. Replace the following components, one at
a time, in the order shown, restarting the
server each time:
a. DIMMs
b. Hard disk drive backplane
c. Power supply
Attention: In a dc power
environment, only trained service
personnel other than Lenovo service
technicians are authorized to connect
or disconnect power to the dc power
supply and to install and remove a dc
power supply. See the documentation
that comes with each dc power supply.
d. (Trained service technician only)
System board