2 Replies Latest reply on Mar 31, 2015 11:12 PM by sivag

    Unable to disable "memory mapped IO above 4 GB" bios option

    sivag Community Member

      Hi,

       

          I've a Dell T3610 workstation which has following CPU.

       

      Intel(R) Xeon(R) CPU E5-1607 v2 @ 3.00GHz

       

      I've plugged in a Broadcom XLP pcie card into PCIe Gen-3  x16 slot of this Dell machine.

       

      In bios, I want to disable the "memory mapped IO above 4 GB" option.

       

      When I uncheck this option, click on "Apply", exit from bios and reenter it,

       

      I see that the "memory mapped IO above 4 GB" option is again enabled (checked).

       

      If I remove the aforementioned pcie card, then, however, I'm able to disable

       

      "memory mapped IO above 4 GB" option in bios.

       

      Could someone please tell me how to disable this option with the pcie card still plugged in ?

       

      Thanks,

      Siva Krishna.