Dell PowerEdge C8000 - Manual (Page 215)

Troubleshooting 215
6 Ensure that all components are properly installed and free of damage.
7 If the system fails to start, see "Getting Help" on page 241.
Troubleshooting the Power Sled
CAUTION: Remove and replace one PSU module at a time. Leave a failed PSU
module installed in the power sled until you are ready to replace it. Operating the
system with a power sled removed for extended periods of time can cause the
system to overheat.
NOTE: The 1400 W power supply module in the power sled require a 200-240 V
power source to operate.
1 Locate the power sled to be removed or the power sled that contains the
failed PSU module. The PSU module’s status indicator will either light up
green or amber. If the PSU module is faulty the status indicator lights up
amber.
2 Replace the faulty PSU module in the power sled. See the PowerEdge
C8000 Systems Hardware Owner’s Manual for more information.
NOTE: After installing a power sled with a new PSU module, allow several seconds
for the system to recognize the power supply and to determine if it is working
properly. The status indicator turns green to signify that the module is functioning
properly.
If none of the PSU modules show a fault LED and the sleds do not power
on, log into the BMC web interface and check for status messages. See
Using the Baseboard Management Controller Guide for more information.
If all troubleshooting fails, see "Getting Help" on page 241.
Troubleshooting System Memory
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.
NOTE: Invalid memory configurations can cause your system to halt at startup
without video output. See "System Memory" on page 160 and verify that your
memory configuration complies with all applicable guidelines.