Dell PowerVault 725N (Rackmount NAS Appliance) - Manual (Page 4)

Internal Visual Inspection
Visual inspection of a system's interior can often locate the source of a problem, such as a loose expansion card or cable connector. See " Jumpers and
Connectors " to locate components referenced in the inspection procedure.
1. Turn off the system, including attached peripherals, and disconnect the system from the electrical outlets.
2. Remove the system cover. See " Removing the System Cover ."
3. Ensure that all components (memory modules, expansion cards, and processors) are properly and securely installed.
4. Verify that all jumpers are set correctly. See " Jumpers and Connectors ."
5. Ensure that all cables inside the system are firmly attached to their appropriate connectors.
6. Replace the system cover. See " Replacing the System Cover ."
7. Reconnect the system to the electrical outlet and turn on the system, including attached peripherals.
If the problem is resolved, no further steps are necessary. If the problem is not resolved, go to " Observing the Boot Routine ."
Running the System Diagnostics
Several tools are available to help diagnose problems when your NAS system or one of its components is not operating properly. The system diagnostics
program allows you to run tests on the entire system or on specific system components such as memory, hard drives, video, and USB. Additionally, separate
programs are available to help you diagnose problems with hard drives and NICs.
Table 2 -1 describes diagnostics programs available for your NAS system and
its components.
Table 2-1. NAS System Diagnostics Programs
Running the System Diagnostics Program
The system's BIOS ROM contains diagnostic software that can be launched during system boot that allows you to test hardware components to identify
problems.
NOTICE: Before proceeding with the internal visual inspection, save all open files and exit all open applications, if possible.
CAUTION: See your System Information Guide for complete information about safety precautions, working inside the computer, and protecting
against electrostatic discharge.
NOTICE: When you turn off the system, press the power button for less than 2 seconds. If you press the power button for longer than 3 seconds, the
system will automatically rebuild the RAID arrays the next time the system is turned on. This could impact system performance for several hours.
CAUTION: The microprocessor and heat-sink assembly can get extremely hot during system operations. Ensure that both components have had
sufficient time to cool before touching them.
CAUTION: When handling the processor and heat-sink assembly, avoid sharp edges on the heat sink.
Component Diagnostics Program
System System diagnostics program. See " Running the System Diagnostics Program ."
Memory System diagnostics program. See " Running the System Diagnostics Program ."
Hard drives Dell OpenManage™ Hard-Drive Diagnostics program. See " Running the Dell OpenManage Hard-Drive Diagnostics Program ."
System diagnostics program. See " Running the System Diagnostics Program ."
Video System diagnostics program. See " Running the System Diagnostics Program ."
USB System diagnostics program. See " Running the System Diagnostics Program ."
NIC NIC diagnostics program. See " Running the NIC Diagnostics Program ."