Optional-device problems
v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See the parts listing in the Hardware Maintenance Manual 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.
Symptom Action
An optional device that was just
installed does not work.
1. Make sure that:
v The device is designed for the server (see http://www.lenovo.com/support/).
v You followed the installation instructions that came with the device and the
device is installed correctly.
v You have not loosened any other installed devices or cables.
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.
v You updated the configuration information in the Configuration/Setup Utility
program. Whenever memory or any other device is changed, you must
update the configuration.
2.
Reseat the device that you just installed.
3. Replace the device that you just installed.
An optional device that used to
work does not work now.
1. Make sure that all of the hardware and cable connections for the device are
secure.
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.
2. If the device comes with test instructions, use those instructions to test the
device.
3. Reseat the failing device.
4. Follow the instructions for device maintenance, such as keeping the heads
clean, and troubleshooting in the documentation that comes with the device.
5. Replace the failing device.
Power problems
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.
138 ThinkServer RD220 Types 3729, 3779, 3797, and 3798: Installation and User Guide
