Troubleshooting power supplies, Troubleshooting system cooling problems, See "troubleshooting – Dell PowerEdge R715 User Manual

Page 155: System cooling, Troubleshooting system, Cooling problems" on, And "troubleshooting, Power supplies" on, Troubleshooting power

Advertising
background image

Troubleshooting Your System

155

Troubleshooting Power Supplies

CAUTION:

At least one power supply must be installed for the system to operate.

Operating the system with only one power supply installed for extended periods of
time can cause the system to overheat.

1 Identify the faulty power supply by the power supply's fault indicator. See

"Power Indicator Codes" on page 21.

2 Reseat the power supply by removing and reinstalling it. See "Removing a

Power Supply" on page 88 and "Installing a Power Supply" on page 89.

NOTE:

After installing a power supply, allow several seconds for the system

to recognize the power supply and to determine if it is working properly. The

power indicator turns green to signify that the power supply is functioning

properly.

If the problem persists, replace the faulty power supply.

3 If the problem persists, see "Getting Help" on page 183.

Troubleshooting System Cooling Problems

CAUTION:

Many repairs may only be done by a certified service technician.

You should only perform troubleshooting and simple repairs as authorized in
your product documentation, or as directed by the online or telephone service
and support team. Damage due to servicing that is not authorized by Dell is
not covered by your warranty. Read and follow the safety instructions that
came with the product.

Ensure that none of the following conditions exist:

• System cover, cooling shroud, drive blank, memory-module blank, power-

supply blank, or PCIe slot filler bracket is removed.

• Ambient temperature is too high. See your Getting Started Guide for your

system’s operating temperature requirements.

• External airflow is obstructed.
• Cables inside the system obstruct airflow.
• An individual cooling fan is removed or has failed. See"Troubleshooting a

Fan" on page 156.

• The expansion card installation guidelines have not been followed. See

"Expansion Card Installation Guidelines" on page 105.

book.book Page 155 Thursday, June 3, 2010 4:35 PM

Advertising