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

Option Description
• Last Power State
Auto On Time Allows you to set the time at which the computer must turn on automatically.
The options are:
• Disabled (Default)
• Every Day
• Weekdays
• Select Days
Deep Sleep Control Allows you to define the controls when Deep Sleep is enabled.
• Disabled (Default)
• Enabled in S5 only
• Enabled in S4 and S5
Fan Speed Control Allows you to control the speed of the system fan. The options are:
• Auto (Default)
• Medium low
• Medium high
• Medium
• High
• Low
USB Wake Support Allows you to enable USB devices to wake the system from standby.
• Enable USB Wake Support
Default Setting: The option is disabled.
Wake on LAN This option allows the computer to power up from the off state when triggered
by a special LAN signal. Wake-up from the Standby state is unaffected by this
setting and must be enabled in the operating system. This feature only works
when the computer is connected to AC power supply.
• Disabled - Does not allow the system to power on by special LAN signals
when it receives a wake-up signal from the LAN or wireless LAN.
• LAN Only - Allows the system to be powered on by special LAN signals.
• LAN with PXE Boot - Allows the system to power on and immediately boot
to PXE when it receives a wake-up packet sent to the system in either the S4
or S5 state.
This option is Disabled by default.
Block Sleep Allows you to block entering to sleep (S3 state) in OS Environment.
Default Setting: Disabled
Table 9. POST Behavior
Option Description
Numlock LED Specifies if the NumLock function can be enabled when the system boots. This
option is enabled by default.
Keyboard Errors Specifies whether keyboard related errors are reported when it boots. This
option is enabled by default.
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