Owner`s manual
Table Of Contents
- Dell Precision Tower 7910 Owner's Manual
- Working on Your Computer
- Removing and Installing Components
- Recommended Tools
- System Overview
- Removing the Power Supply Unit (PSU)
- Installing the Power Supply Unit (PSU)
- Removing the Front Cover
- Installing the Front Cover
- Removing the Hard Drive
- Installing the Hard Drive
- Removing the Left Cover
- Installing the Left Cover
- Removing the Intrusion Switch
- Installing the Intrusion Switch
- Removing the PCI Card
- Installing the PCI Card
- Removing the Slimline Optical Drive
- Installing the Slimline Optical Drive
- Removing the Memory Shroud
- Installing the Memory Shroud
- Removing the Memory
- Installing the Memory
- Removing the Coin-Cell Battery
- Installing the Coin-Cell Battery
- Removing the Heatsink
- Installing the Heatsink
- Removing the Liquid Cooler Heatsink (Optional)
- Installing the Liquid Cooler Heatsink (Optional)
- Removing the HeatSink Fan
- Installing the Heatsink Fan
- Removing the PCIe Card Retention
- Installing the PCIe card retention
- Removing the System-Fan Assembly
- Installing the System-Fan Assembly
- Removing the Front Bezel
- Installing the Front Bezel
- Removing the I/O Panel and the USB 3.0 Ports
- Installing the I/O Panel and the USB 3.0 Ports
- Removing the Power Switch
- Installing the Power Switch
- Removing the Speaker
- Installing the Speaker
- Removing the Right Cover
- Installing the Right Cover
- Removing the 5.25-inch Optical Drive
- Installing the 5.25-inch Optical Drive
- Removing the HDD Thermal Sensor
- Installing the HDD Thermal Sensor
- Removing the Processor
- Installing the Processor
- Removing the Hard-Drive Fan
- Installing the Hard-Drive Fan
- Removing the Power Supply Unit (PSU) Card
- Installing the Power Supply Unit (PSU) Card
- System Board Components
- Removing the System Board
- Installing the System Board
- Additional Information
- System Setup
- Diagnostics
- Troubleshooting Your Computer
- Technical Specifications
- Contacting Dell

Feature Specification
Network activity lights (back panel) yellow light — flashes when there is network activity on the
connection.
Table 30. Power
Feature Specification
Coin-cell battery 3 V CR2032 lithium coin cell
Voltage 100 VAC to 240 VAC
Wattage
• 1000 W (input voltage 100 VAC – 107 VAC)
• 1300 W (input voltage 181 VAC – 240 VAC)
• 1100 W (input voltage 108 VAC – 180 VAC)
Maximum heat dissipation
1300 W
• 4015.3 BTU/Hr (at 100 VAC)
• 4365.5 BTU/Hr (at 107 VAC)
• 5099.9 BTU/Hr (at 181 VAC)
NOTE: Heat dissipation is calculated by using the power supply wattage rating.
Table 31. Physical
Feature Specification
Height (with feet) 433.40 mm (17.06 inches)
Height (without feet) 430.50 mm (16.95 inches)
Width 216.00 mm (8.51 inches)
Depth 525.00 mm (20.67 inches)
Weight (minimum) 16.90 kg (37.26 lb)
Table 32. Environmental
Feature Specification
Temperature:
Operating 10 °C to 35 °C (50 °F to 95 °F)
Storage –40 °C to 65 °C (–40 °F to 149 °F)
Relative humidity (maximum) 20% to 80% (noncondensing)
Maximum vibration:
Operating 5 Hz to 350 Hz at 0.0002 G²/Hz
Storage 5 Hz to 500 Hz at 0.001 to 0.01 G²/Hz
Maximum shock:
Operating 40 G +/- 5% with pulse duration of 2 msec +/- 10%
(equivalent to 51 cm/sec [20 in/sec])
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