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Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide
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Chapter 5 Troubleshooting the System Hardware
Problem-Solving Tips
• Disk drives
• Memory modules
Caution Any component that is internal to the device must be serviced by trained and
qualified personnel. Contact your Cisco customer service representative.
Step 4 Power up the device. If the problem remains, check the following parts in the
order listed:
a. Power backplane
b. System board
Note If the problem goes away when you remove an adapter from the system,
and replacing that adapter does not correct the problem, check the system
board.
Note If you suspect a networking problem and all the system tests pass, check
if there is a network cabling problem external to the system.
Problem-Solving Tips
Because of the variety of hardware and software combinations that can be
encountered, use the following information to assist you in identifying the
problems. If possible, have this information available when requesting technical
assistance.
• Machine type and model
• Microprocessor or hard disk upgrades
• Failure symptom
–
What, when, where; single or multiple systems?
–
Is the failure repeatable?