Dell Studio XPS 8000 Series Intel Socket LGA1156 Desktop Motherboard X231R 0X231R CN-0X231R. The Intel board harnesses the advanced computing power of the latest Intel Core i7 LGA1156 processor supporting Hyper-Threading Technology.

Dell Part Number: X231R 0X231R CN-0X231R
Compatible Part Numbers: DP55M01 YD0213
Compatible Models: Dell Studio XPS 8000 Series


Please note, 3rd memory slot is not working, otherwise the motherboard is fully operational and functions as intended!
 

Specifications:

Chipset: Intel P55
Socket: LGA1156
Expansion Slots: 1 PCI, 1 PCI Express x16, 2 PCI Express x1
Other Features: Hyper-Threading Technology Support
Rear Ports:
IEEE 1394a
RJ45 10/100/1000 Network port
Line-in connector
Front L/R line-out connector
Back L/R surround connector
Side L/R surround connector
Center/subwoofer connector
Microphone connector
USB 2.0 (4)
eSATA
S/PDIF connector
Audio: Integrated 7.1 channel High Definition Audio
Supported Memory: DDR3 SDRAM
Maximum Memory: Up to 16GB Dual-Channel 1333MHz DDR3 SDRAM - 4 DIMMs