1 Reply Latest reply on Jul 30, 2015 1:08 AM by angelfernandez

    How to enable CrossfireX support in 8X, on KCMA-D8 via Bios settings, using slot 1 and Slot 3


      I need the PCIE Bios settings to enable CrossFireX support in 8X on this MOBO with 2 Asus Radeon HD 7790 HD7790-DC2OC-2GD5 Video Cards. The information on the ASUS site for the settings of the SR5670 Chip/PCIE Configuration and SP5100 are not explained. Be aware that the photo of the slots in the manual, (page 2-23), is CORRECT!!! The description of the slots on page xi of the manual and on the website are WRONG!!! PCIE slots for this MOBO are Slot 1 16X Gen2 (when solo), Slot 3 8X Gen2 , Slot 5 4X Gen 2.
      Here is a link for the AMD SR5670 Data sheet: http://support.amd.com/TechDocs/44549.pdf
      Here is a link for the AMD SP5100 Data sheet: http://support.amd.com/TechDocs/44409_sp5100_ds_pub_1.70.pdf

      Hardware is as follows:

      ASUS KCMA-D8 MOBO  BIOS 3303- ATX - Socket C32 - 2 CPUs supported - AMD SR5670/SP5100 - 2 x Gigabit LAN - onboard graphics
      Ultra X4 Modular 1050-Watt ATX Power Supply V2 - 1050W, 135mm Fan, ATX, 80+ Silver, Active PFC, Nvidia SLI, ATI Crossfire X,
      (2) AMD OS4226WLU6KGUWOF Opteron 4226 Socket C32 Processor - 6 Core, Socket C32, B2, 2700 Frequency, 6400 Bus Speed, 95W
      (2) Asus Radeon HD 7790 HD7790-DC2OC-2GD5 Video Card 2GB GDDR5, PCI-Express 3.0 (x16), Overclocked
      4X8 32 GB Crucial Ballistix Sport Memory Module - DDR3, PC3-10600, DIM, 1333MT/z, CL9, 240 Pin, 1.5V, Unbuffered, Non ECC (BLS8G3D1339DS1S00)
      (2) LG WH14NS40 14X Blu-Ray Burner - SATA, 4MB Buffer, 3D Playback, OEM

      I understand enough to know the Bios settings are wrong. Does anyone know how to correctly configure these BIOS settings? I do not want to fry the Board with wrong setting.
      Any help is appreciated!!!!!!!!