Symptoms

Supported Systems: Alienware X51 R2 1. System Specifications Show all | Hide all Processors 4th Generation Intel® Core™ Processors (Haswell) Intel® Core™ i3-4150 (Dual Core, 3 MB Cache, 3.5 GHz)Intel® Core™ i5-4430 (Quad Core, 6 MB Cache, up to 3.2 GHz w/ Turbo Boost)Intel® Core™ i5-4460 (Quad Core, 6 MB Cache, up to 3.4 GHz w/ Turbo Boost)Intel® Core™ i7-4770 (Quad Core, 8 MB Cache, up to 3.9 GHz w/ Turbo Boost)Intel® Core™ i7-4790 (Quad Core, 8 MB Cache, up to 4.0 GHz w/ Turbo Boost)Intel® Core™ i7-4790K (Quad Core, 8 MB Cache, up to 4.4 GHz w/ Turbo Boost) Chipset Intel® H87 Chipset (Intel® DH82H87 PCH)"Shark Bay" Click here for detailed specifications. NOTE: Some of the features that are described on the link above have been disabled and are not available on your computer due to design and technical limitations. Memory DDR3 PC3-12800 NON-ECC (1600 MHz) Minimum: 4 GbMaximum: 16 Gb 2x 240-Pin DDR4 SDRAM Slots for use with the following configurations: 4 Gb (2x2 Gb DIMMS)6 Gb (1x2 Gb 1x4GB DIMMS)8 Gb (2x4 Gb DIMMS)16 Gb (2x8 Gb DIMMS) Hard Drive 2x SATA III 6 Gb/s Ports Following configurations can be used: 1x 3.5" SATA I/II/III Hard Drive2x 2.5" SATA I/II/III Solid State or Regular Drives NOTE: Single and Dual drive configuration using 2.5" drives requires a special cradle and cable that is not included with the computer. Optical Drive Internal Drive Bay for SATA II Slot-Loading Slim Type (9.5 mm) Optical Drive DVD+/-RW drive - Can read/write CD and DVD. Can't read/write Blu-ray DisksDVDRW/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 CardHalf mini-PCIe Slot for use with: DW 1506 802.11 b/g/n Wi-Fi Wireless LANDW 1550 802.11 b/g/n/ac Wi-Fi + BluetoothWireless Combo Killer NIC 1420Wireless LAN (Retired) Killer NIC 1202 Wireless LAN (Retired) NOTE: Other half mini-PCIe cards can be used in the computer. Dell will not support any issues resulting from the use of non-Dell approved hardware.For more information about your warranty, see Dell knowledge base article How to Find Warranty Status and Information for your Dell product Audio Integrated Realtek ALC892 codec 5.1/7.1 SupportDigital S/PDIF 1Rear Left and Right Speakers2Center Speaker3Line-in4Front Left and Right Speakers5Microphone port6Side Left and Right Speakers 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 Integrated Graphics model varies depending on your processor model: Intel HD 4400 Intel® Core™ i3-4150 Intel HD 4600 Intel® Core™ i5-4430Intel® Core™ i5-4460Intel® Core™ i7-4770Intel® Core™ i7-4790Intel® Core™ i7-4790K NOTE: For the integrated graphics to work you must connect a display to the integrated HMDI port on the top back part of your computer. Discrete Graphics (High Performance) Supported discrete graphics cards: NVIDIA NVIDIA® GeForce® GTX 645 1GB GDDR5NVIDIA® GeForce® GTX 660 2GB GDDR5NVIDIA® GeForce® GTX 670 2GB GDDR5 - Requires 330 Watts AC AdapterNVIDIA® GeForce® GTX 745 4GB DDR3NVIDIA® GeForce® GTX 750Ti 2GB GDDR5NVIDIA® GeForce® GTX 760Ti 2GB GDDR5NVIDIA® GeForce® GTX 960 2GB GDDR5 - Requires 330 Watts AC Adapter AMD AMD Radeon™ R9 270/270X Maximum Graphics Card Dimensions Height: 4.736 inchesLength: 9.5 inchesWidth: 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 1Coaxial S/PDIF2Network3Kensington Lock4Discrete Video Card5DC Power In6Hard Drive Activity LED7Audio Jacks8USB 3.0 (2)9USB 2.0 (2)10USB 3.0 (2)11HDMI Out12Optical S/PDIF 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 Back to Top 2. Unique Features AlienFX computer lighting Create custom lighting to suit your unique gaming style. Apply 20 different colors to 3 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 computer’s power-management controls so you can decide when you need maximum performance or when to scale back for more everyday programs. Back to Top 3. Need to Know Show all | Hide all 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 computer off and then on.When you see the Alienware logo, tap F2 until you get the screen below.Go 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: System will work only using the Integrated Graphics Card and HDMI port.Discrete: 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 computer can be kept horizontally, do not keep the monitor on top of the computer since the surface is uneven and the monitor might damage the Side Lighting Board. Lighting Zones The Alienware X51 R3 has 3 Lighting zones: Alien HeadLeft Side CoverRight Side Cover These Lighting Zones can be controlled through the Alienware Command Center. NOTE: Power light does not change color.Morph and Pulse effects are not available on the X51. Back to Top

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Out of warranty? No problem. Browse to the Dell.com/support website and enter your Dell Service Tag and view our offers. NOTE: Offers are only available for US, Canada, UK, France, Germany, China, and Japan personal computer customers. Server and Storage not applicable.