Owners Manual
Table Of Contents
- Dell Precision Rack 7910 Owner's Manual
- Contents
- Working on your computer
- LCD panel features
- Hard drive indicator codes
- Installing and removing system components
- Safety instructions
- Before working inside your system
- After working inside your system
- Recommended tools
- System Overview
- Front bezel (optional)
- Removing the system cover
- Installing the system cover
- Inside the system
- Cooling shroud
- System memory
- General memory module installation guidelines
- Sample memory configurations
- Removing memory modules
- Installing memory modules
- Hard drives
- Removing a 2.5 inch hard-drive blank
- Installing a 2.5 inch hard-drive blank
- Removing Hard Drive
- Installing Hard Drive
- Removing a hard drive from a hard-drive carrier
- Installing a hard drive into a hard-drive carrier
- Optical drive (optional)
- Cooling fans
- Removing a cooling fan
- Installing a cooling fan
- Removing the cooling-fan assembly
- Installing the cooling-fan assembly
- Internal USB memory key (optional)
- Replacing the internal USB key
- PCIe card holder
- Cable retention bracket
- Expansion cards and expansion card risers
- Expansion card installation guidelines
- Removing an expansion card from expansion-card riser 2 or 3
- Installing an expansion card into the expansion-card riser 2 or 3
- Removing an expansion card from the expansion-card riser 1
- Installing an expansion card into the expansion-card riser 1
- Removing the riser 1 blank
- Installing the riser 1 blank
- Removing expansion-card risers
- Installing expansion-card risers
- GPU card installation guidelines
- Installing a GPU card
- Removing a GPU card
- SD vFlash media card (optional)
- Internal dual SD module (optional)
- Integrated storage controller card
- Network daughter card
- Heat sink and processor
- Power supply units
- Hot spare feature
- Removing the power supply unit blank
- Installing the power supply unit blank
- Removing an AC power supply unit
- Installing an AC power supply unit
- System battery
- Hard-drive backplane
- Removing the hard-drive backplane
- Installing the hard-drive backplane
- Control panel assembly
- System board
- Troubleshooting your system
- Troubleshooting system startup failure
- Troubleshooting external connections
- Troubleshooting the video subsystem
- Troubleshooting a USB device
- Troubleshooting iDRAC Direct (USB XML configuration)
- Troubleshooting iDRAC Direct (laptop connection)
- Troubleshooting a serial I/O device
- Troubleshooting a NIC
- Troubleshooting a wet system
- Troubleshooting a damaged system
- Troubleshooting the system battery
- Troubleshooting power supply units
- Troubleshooting cooling problems
- Troubleshooting cooling fans
- Troubleshooting system memory
- Troubleshooting an internal USB key
- Troubleshooting an SD card
- Troubleshooting an optical drive
- Troubleshooting a hard drive
- Troubleshooting a storage controller
- Troubleshooting expansion cards
- Troubleshooting processors
- Error Messages
- System messages
- Using system diagnostics
- Jumpers and connectors
- Specifications
- System Setup
- Boot Menu
- Timing Key Sequences
- Dell Diagnostics
- About system setup
- Entering System Setup
- System Setup Main Menu
- System BIOS screen
- System Information screen details
- Memory Settings screen details
- Processor Settings screen details
- SATA Settings screen details
- Boot Settings screen details
- Integrated Devices screen details
- Serial Communication screen details
- System Profile Settings screen details
- System Security settings screen details
- Miscellaneous Settings screen details
- NIC indicator codes
- Power indicator codes
- Contacting Dell
If the date and time are not correct in the System Setup, check the SEL for system battery messages.
Troubleshooting power supply units
Prerequisites
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.
Power source problems
Steps
1. Press the power button to ensure that your system is turned on. If the power indicator does not light up when the power
button is pressed, press the power-on button firmly.
2. Plug in another working device to ensure that the power outlet is not faulty
3. Ensure that no loose connections exist.
For example, loose power cables.
4. Ensure that the power source meets applicable standards.
5. Ensure that there are no short circuits.
6. Have a qualified electrician check the line voltage to ensure that it meets the required specifications.
Power supply unit problems
Steps
1. Ensure that no loose connections exist.
For example, loose power cables.
2. Ensure that the power supply handle/LED indicates that the power supply is working properly.
3. If you have recently upgraded your system, ensure that the power supply unit has enough power to support the new system.
4. If you have a redundant power supply configuration, ensure that both the power supply units are of the same type and
wattage.
5. Ensure that you use only power supply units with the Extended Power Performance (EPP) label on the back.
6. Reset the power supply unit.
NOTE:
After installing a power supply unit, allow several seconds for the system to recognize the power supply unit and
determine if it is working properly.
Troubleshooting 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 the following conditions exist:
● System cover, cooling shroud, EMI filler panel, or back-filler bracket is not removed.
● Ambient temperature is not higher than the specified ambient temperature.
● External airflow is not obstructed.
● A cooling fan is not removed or has not failed.
Troubleshooting your system
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