User's Manual
Table Of Contents
- Dell Precision 3551 Setup and specifications guide
- Set up your Precision 3551
- Create a USB recovery drive for Windows
- Chassis overview
- Technical specifications
- System specifications
- Processors
- Chipset
- Operating system
- Memory
- System board connectors
- Storage
- Media-card reader
- Audio
- Video
- Camera
- Communications
- Mobile broadband
- Power adapter
- Battery
- Dimensions and weight
- Ports and connectors
- Touchpad
- Display
- Keyboard
- Fingerprint reader in Power Button
- Fingerprint reader
- Sensor and control specifications
- Security
- Security options—Contacted smartcard reader
- Security options—Contactless smartcard reader
- Security Software
- Computer environment
- Support policy
- System specifications
- Keyboard shortcuts
- Software
- System setup
- Getting help
Option Description
• Every Day
• Weekdays
• Select Days
Default setting: Disabled
USB Wake
Support
Allows you to enable USB devices to wake the system from Standby.
NOTE: This feature is only functional when the AC power adapter is connected. If the AC power
adapter is removed during Standby, the system setup removes power from all the USB ports to
conserve battery power.
• Enable USB Wake Support
Wireless Radio
Control
If Enabled, this feature will sense the connection of the system to a wired network and subsequently disable the
selected wireless radios (WLAN and/ or WWAN).
• Control WLAN radio - is disabled
Wake on LAN Allows you to enable or disable the feature that powers on the computer from the Off state when triggered by a
LAN signal.
• Disabled
• LAN Only
• LAN with PXE Boot
Default setting: Disabled
Block Sleep This option lets you to block entering to sleep in OS environment. When enabled system won't go to sleep.
Block Sleep - is disabled
Peak Shift This option enables you to minimize the AC power consumption during the peak power times of day. After you
enable this option, your system runs only in battery even if the AC is attached.
• Enable peak shift—is disabled
• Set battery threshold (15% to 100%) - 15 % (enabled by default)
Advanced Battery
Charge
Configuration
This option enables you to maximize the battery health. By enabling this option, your system uses the standard
charging algorithm and other techniques, during the non work hours to improve the battery health.
Enable Advanced Battery Charge Mode- is disabled
Primary Battery
Charge
Configuration
Allows you to select the charging mode for the battery. The options are:
• Adaptive—enabled by default
• Standard—Fully charges your battery at a standard rate.
• ExpressCharge—The battery charges over a shorter time using Dell’s fast charging technology.
• Primarily AC use
• Custom
If Custom Charge is selected, you can also configure Custom Charge Start and Custom Charge Stop.
NOTE: All charging mode may not be available for all the batteries. To enable this option, disable
the Advanced Battery Charge Configuration option.
POST behavior
Option
Description
Adapter Warnings Allows you to enable or disable the system setup (BIOS) warning messages when you use certain power adapters.
Default setting: Enable Adapter Warnings
Numlock Enable Allows you to enable the Numlock option when the computer boots.
Enable Network. This option is enabled by default.
System setup 35