Owners Manual
Table Of Contents
- About Your System
- Accessing System Features During Startup
- Front-Panel Features and Indicators
- LCD Panel Features
- Hard-Drive Indicator Patterns for RAID
- Back Panel Features and Indicators
- Power Indicator Codes
- NIC Indicator Codes
- LCD Status Messages
- System Messages
- Warning Messages
- Diagnostics Messages
- Alert Messages
- Other Information You May Need
- Using the System Setup Program and UEFI Boot Manager
- Installing System Components
- Recommended Tools
- Inside the System
- Front Bezel (Optional)
- Information Tag
- Opening and Closing the System
- Hard Drives
- Power Supplies
- Internal SD Module
- Internal SD Flash Card
- Internal USB Memory Key
- Internal USB Cable
- Integrated Dell Remote Access Controller 6 (iDRAC6) Enterprise Card (Optional)
- VFlash Media (Optional)
- NIC Hardware Key
- Cooling Shroud
- Cooling Fans
- Optical Drive
- Integrated Storage Controller Card
- RAID Battery
- Cable Routing
- Expansion Cards and Expansion-Card Risers
- Expansion Card Installation Guidelines
- Installing an Expansion Card
- Removing an Expansion Card
- Removing Expansion-Card Riser 1
- Replacing Expansion-Card Riser 1
- Removing Expansion-Card Riser 2
- Replacing Expansion-Card Riser 2
- Removing Expansion-Card Riser 2 From the Expansion-Card Bracket
- Replacing the Riser 2 Board on the Expansion-Card Bracket
- System Memory
- Processors
- System Battery
- Control Panel Assembly
- SAS Backplane (Service Only Procedure)
- System Board
- Troubleshooting Your System
- Safety First-For You and Your System
- Troubleshooting System Startup Failure
- Troubleshooting External Connections
- Troubleshooting the Video Subsystem
- Troubleshooting a USB Device
- Troubleshooting a Serial I/O Device
- Troubleshooting a NIC
- Troubleshooting a Wet System
- Troubleshooting a Damaged System
- Troubleshooting the System Battery
- Troubleshooting Power Supplies
- Troubleshooting System Cooling Problems
- Troubleshooting a Fan
- Troubleshooting System Memory
- Troubleshooting an Internal SD Card
- Troubleshooting an Internal USB Memory Key
- Troubleshooting an Optical Drive
- Troubleshooting a Hard Drive
- Troubleshooting a Storage Controller
- Troubleshooting Expansion Cards
- Troubleshooting the Processor
- Running the System Diagnostics
- Jumpers and Connectors
- Getting Help
- Index

Troubleshooting Your System 163
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 "General Memory Module Installation Guidelines" on
page 131 and verify that your memory configuration complies with all applicable
guidelines.
1
If the system is operational, run the appropriate online diagnostic test. See
"Using Online Diagnostics" on page 173.
If diagnostics indicates a fault, follow the corrective actions provided by
the diagnostic program.
2
If the system is not operational, turn off the system and attached
peripherals, and unplug the system from the power source. Wait at least 10
seconds and then reconnect the system to power.
3
Turn on the system and attached peripherals and note the messages on the
screen or LCD panel.
Go to step 14 if an error message appears indicating a fault with a specific
memory module.
4
Enter the System Setup program and check the system memory setting.
See "Memory Settings Screen" on page 61. Make any changes to the
memory settings, if needed.
If the memory settings match the installed memory but a problem is still
indicated, go to step 14.
5
Turn off the system and attached peripherals, and disconnect the system
from the electrical outlet.
6
Open the system. See "Opening the System" on page 83.
7
Remove the cooling shroud. See "Removing the Cooling Shroud" on
page 103.
8
Check the memory channels and ensure that they are populated correctly.
See "General Memory Module Installation Guidelines" on page 131.