Owners Manual
Table Of Contents
- Dell Precision 7920 Tower Owner's Manual
- Contents
- Chassis
- Working on your computer
- Removing and installing components
- Screw size list
- Recommended tools
- Power supply unit (PSU)
- Side cover
- Air shroud
- Front bezel
- PCIe holder
- Intrusion switch
- Front system fan assembly
- Internal chassis speaker
- Hard disk drive and the Optical disk drive bezel
- Hard disk drive assembly
- NVMe Flexbay
- Front input and output bezel
- Front input and output panel
- Rear system fan
- Right side cover
- Hard disk drive and optical disk drive frame
- Slim Optical Disk Drive
- 5.25-inch optical drive
- Power distribution and fan control board
- Front HDD cable and fan assembly
- Fan bracket
- Graphical processing unit(GPU)
- Memory
- Coin cell battery
- Processor heat sink module
- System board
- RAID controller battery
- VROC module
- Technology and components
- System specifications
- System Setup
- Software
- Troubleshooting
- Contacting Dell
Table 21. Diagnostic Indicator table (continued)
Power Light: Amber-White
Blinking
Amber/White Blinking
Pattern
Problem Description Suggested Resolution
4-7 4 amber blinks followed by a
short pause, 7 white blinks,
long pause, then repeats
System Side cover is missing
● System side cover(either
left or right) is missing.
● Unplug power, Install back
all side covers back to the
chassis and plug in power.
● Contact Tech Support.
Hard drive indicator codes
Each hard drive carrier has an activity LED indicator and a status LED indicator. The indicators provide information about the
current status of the hard drive. The activity LED indicator indicates whether the hard drive is currently in use or not. The status
LED indicator indicates the power condition of the drive.
Hard drive indicators
NOTE: LED status or activity indicators will only work with a backplane with each carriers shown below.
Troubleshooting 123