4 Replies Latest reply on Jan 28, 2015 9:27 AM by zonkiii

    Windows 8.1 64bit does not run with Q9650 CPU???



      I'm running a Intel Core2 Quad Q6600 with Windows 8.1 64bit (in an Asus P5W DH Deluxe Mainboard, Northbridge Intel i975X rev. C0, Southbridge Intel 82801GB rev. A1, AMI Bios 2801, 4 x 1GB Corsair DDR2 DIMM, Samsung SSD).

      This setup is running very fine.


      I bought a Q9650 CPU last week (http://ark.intel.com/products/35428/Intel-Core2-Quad-Processor-Q9650-12M-Cache-3_00-GHz-1333-MHz-FSB) which is compatible to the mainboard since BIOS Versio 2103 (http://www.asus.com/Motherboards/P5W_DH_Deluxe/HelpDesk_CPU).

      On http://www.intel.com/support/processors/sb/CS-034255.htm Intel states that this CPU is Windows 8.1 compatible because it supports "Execute Disable Bit"

      When I exchange the Q6600 by the Q9650 CPU the BIOS recognizes the CPU correctly. But windows does not load, it stops with a blue screen which states "Unsupported Processor" and then reloads repeatedly.Image

      Only once windows loaded normally with the Q9650 but after that not again.

      I also tried a second identical mainboard with Bios Version 3001 but I got the same issue, the pc reloads the whole time.


      When I put in the Q6600 again everything is running fine.


      Does anybody know what I can do to use the q9650 with windows8.1 in my pc?