The system will not get past auto repair, the BIOS hard test gives error: 2000-0114. The R12 is a defective product. Proof, given that we replaced every part and the errors continue. We took the parts out and put them in a new case/ ASUS motherboard, that works! This proves its a Dell product defect. 
Alienware Aurora R12 crashes BSOD several times a day and eventually will not restart.  The bug check is usually : 0x00000001 (0x00007fff79121184, 0x0000000000000000, 0x0000000000000005, 0xffffeb838419f440). APC_INDEX_MISMATCH (1). Installed the latest drivers and BIOS updates, and the latest updates from Microsoft. I have reinstalled the O/S several times, as-well-as, replaced the disk drives, the RAM, the motherboard, and the GPU - only original part is CPU.  Anyone else have such issues with the R12? Seems to me to be a defective design.
Aurora R12, BSOD several times a day