IBM TotalStorage Network Attached Storage 300G User Reference page 47

Table 3. Troubleshooting symptoms and actions (continued)
Device
Memory problems
The amount of memory
displayed is less than the
amount of memory installed.
Microprocessor problems
The appliance emits a
continuous tone during POST.
Option problems
An IBM option that was just
installed does not work.
An IBM option that used to work
does not work now.
The number of parallel ports
displayed is less than the
number of parallel ports
installed.
Power problems
The appliance does not power
on.
Suggested action
Verify that:
1. The memory modules are seated properly.
2. You have installed the correct type of memory.
3. If you changed the memory, you updated the memory configuration with the
Configuration/Setup Utility program.
4. All banks of memory on the DIMMs are enabled. The appliance might have
automatically disabled a DIMM bank when it detected a problem or a DIMM
bank could have been manually disabled.
If the above items are correct, run the memory diagnostic program. The system
might have detected a bad memory module and automatically reallocated memory
to enable you to continue to operate. If the memory tests fail, call for service or
replace the failing DIMM.
The startup (boot) microprocessor is not working properly.
Verify that the startup microprocessor is seated properly. If it is, replace the startup
microprocessor.
If the problem remains, call for service.
Verify that:
1. The option is designed for the appliance. Refer to the hardware installation
guide that came with this appliance for a list of supported options.
2. You followed the installation instructions that came with the option.
3. The option is installed correctly.
4. You have not loosened any other installed options or cables.
5. You updated the configuration information in the Configuration/Setup Utility
program. Whenever memory or an option is changed, you must update the
configuration.
If the problem remains, call for service.
Verify that all of the option hardware and cable connections are secure.
If the option comes with its own test instructions, use those instructions to test the
option.
If the problem remains, call for service.
Verify that:
1. The power cables are properly connected to the appliance.
2. The electrical outlet functions properly.
3. The type of memory installed is correct.
4. If you just installed an option, remove it, and restart the appliance. If the
appliance now powers on, you might have installed more options than the
power supply supports.
5. The LEDs on the power supply are on.
If the problem remains, call for service.
Troubleshooting
Chapter 5. Troubleshooting
35