Alienware X51 R3 System Specifications

Summary: This article provides the technical specifications and features of your Alienware X51 R3.

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.

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	Description		This article provides all the technical specifications for the Alienware X51 R3 systems and the supported features and important information.

Supported Systems:

	Alienware X51 R3

4th Generation Intel® Core™ Processors (Haswell)

Intel® Core™ i3-6100 (3 MB Cache, 3.7 GHz)
Intel® Core™ i5-6400 (6 MB Cache, up to 3.3 GHz with Turbo Boost Technology) Includes Hyper-Threading
Intel® Core™ i5-6600K (6 MB Cache, Overclocked up to 4.3 GHz)
Intel® Core™ i7-6700 (8 MB Cache, up to 4.0 GHz with Turbo Boost Technology) Includes Hyper-Threading

Intel® Z170 Chipset (Intel® GL82Z170 PCH)"Skylake"

Click here for detailed specifications.

Note: Some of the features described on the link above have been disabled and are not available on your system due to design and technical limitations.

DDR4 PC4-17000 Non-ECC only (2133 MHz)

Minimum: 4 Gb
Maximum: 16 Gb

2x 240-Pin DDR4 SDRAM Slots for use with the following configurations:

8 Gb Dual Channel (2x4 Gb DIMMS)
12 Gb (1x 4 Gb + 1x 8 Gb)
16 Gb Dual Channel (2x8 Gb DIMMS)

2x SATA III 6 Gb/s Ports

Following configurations can be used:

1x 3.5" SATA I/II/III Hard Drive
2x 2.5" SATA I/II/III Solid State or Regular Drives

1x M.2 PCIe SSD Slot

Single and Dual drive configuration using 2.5" drives requires a special cradle and cable that is not included with the system.

Optical Drive

Internal Drive Bay for SATA II Slot-Loading Slim Type (9.5 mm) Optical Drive (Optional)

DVD+/-RW drive - Can read/write CD and DVD. Cannot read/write Blu-ray Disks
DVDRW/BD-ROM drive - Can read/write CD and DVD but can only read Blu-ray Disks.

Network and Wireless

Realtek Integrated 10/100/1000 Gigabit Network Card

Half mini-PCIe Slot for use with:

Intel® 3165 1x1 802.11ac Wi-Fi Wireless LAN and Bluetooth
Intel® 7265 2x2 802.11ac Wi-Fi Wireless LAN and Bluetooth

Other half mini-PCIe cards can be used in the system. Dell will not support any issues resulting from the use of non-Dell approved hardware.
For more information on your warranty, go to dell.com/warranty

Audio

Integrated Realtek ALC3861 codec

5.1/7.1 Support

Video Card

The Alienware X51 R3 supports nVidia Optimus graphics switching technology. This allows the driver to automatically select between your NVIDIA graphics card and the Intel HD Integrated graphics to give you the best performance.

Integrated Graphics

Intel HD 530

Discrete Graphics (High Performance)

Supported discrete graphics cards:

NVIDIA

NVIDIA® GeForce® GTX 745 1GB GDDR5
NVIDIA® GeForce® GTX 960 2GB GDDR5 - Requires 330 Watts AC Adapter

AMD

AMD Radeon™ R9 370

Maximum Graphics Card Dimensions

Height: 4.736 inches
Length: 9.5 inches
Width: Dual Slot

Power Specifications

Maximum Graphics Card Power:

- 175 Watts (330 Watts AC Adapter)
- 150 Watts (240 Watts AC Adapter)
Video Power Connectors: Two 6-pin

Rear Panel Ports

1	HDMI	2	USB 3.0 ports
3	USB 2.0 ports	4	Alienware Graphics Amplifier
5	USB 3.1 ports	6	Front Speakers/Headphones
7	Center/Subwoofer	8	Rear Speakers
9	RJ45 Network Port

System Dimensions

Dimensions and Weight

Height: Front: 13.504" - (343 mm) Rear: 12.54" - (318.5 mm)
Depth: 12.52" - (318 mm)
Width: 3.74" - (95 mm)
Starting Weight: 12.1 lbs - (5.49 Kg.)

Motherboard Form Factor

Mini-ITX Motherboard

Power

Alienware™ 240-Watt Power Supply (Standard)
Alienware™ 330-Watt Power Supply

2. Unique Features

AlienFX system lighting
		Create custom lighting to suit your unique gaming style. Apply 20 different colors to three different zones for 8,000 color combinations.

AlienAdrenaline
		Launch games your way with personalized shortcuts in Game Mode, maximize performance with the new Accelerator feature, and keep an eye on resource consumption with Performance Monitoring...

AlienFusion
		Access your system’s power-management controls so you can decide when you need maximum performance or when to scale back for more everyday programs.

3. Need to Know

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Primary Display option in System Setup

The Alienware X51 R3 has the following display options:

Discrete Video Card (High Performance)
Integrated Graphics

You can choose which video card you want to use by doing the following:

Turn your system off and then on
When you see the Alienware logo tap F2 until you get the screen below
Navigate to Primary Display under the Advanced tab
Press enter or click the Primary Display option to change settings

Auto: The video card will be automatically selected by the driver
IGFX: The system will work only using the Integrated Graphics Card and HDMI port.
Discrete: The system will use the discrete video card, and the integrated graphics will be disabled.

System Chassis

The Alienware X51 R3 can be kept vertically or horizontally. The Alienhead can rotate accordingly.

Warning:
Although the system can be kept horizontally, do not keep the monitor on top of the system since the surface is uneven and the monitor might damage the Side Lighting Board.