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 Problem Determination and Service Guide 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 IBM option that used to work
does not work now.
v Make sure that all of the option hardware and cable connections are secure.
v If the option comes with test instructions, use those instructions to test the
option.
v If the failing option is a SAS device, make sure that:
– The cables for all external SAS options are connected correctly.
– The last device in each SAS chain, or the end of the SAS cable, is
terminated correctly.
– Any external SAS devices are turned on. You must turn on external SAS
devices before turning on the server.
If
the problem remains, call for service.
Power 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 Problem Determination and Service Guide 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
The server does not turn on. v Make sure that the server power cord is connected to the server and a working
electrical outlet.
v Make sure that the type of memory that is installed is supported by the server
and is installed in the correct order.
v Make sure that the microprocessors are installed in the correct sockets.
v If you just installed an option, remove it, and restart the server. If the server now
turns on, you might have installed more options than the power supply supports.
v Make sure the memory cassette is fully seated and the locking handle is all the
way down.
If
the problem remains, call for service.
The server does not turn off. Determine whether you are using an ACPI or non-ACPI operating system.
If you are using a non-ACPI operating system, complete the following steps:
1. Press Ctrl+Alt+Delete.
2. Turn off the server by using the power-control button. You might need to press
and hold the power-control button for 5 seconds to force the server to turn off.
If
the problem remains or if you are using an ACPI operating system, call for
service.
Serial port problems
For more information about the serial port, see the User’s Guide on the IBM System
x Documentation CD.
58 IBM System x3850 Type 8864: Installation Guide
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