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

[SGudi]

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.

[Gabriel_T_Intel]

Hello Siva,

Welcome to the Intel® Embedded Community,

We are checking you issue and will contact you soon.

Regards,

Gabriel Thomas

[SGudi]

Hi Gabriel,

I've posted the same above question in "/places All Places > /community/en Embedded Community > /community/en/software Software & Bios > /community/en/software/content?filterID=contentstatus[published]~objecttype~objecttype[thread] Discussions" as i found that it is the relevant place for the above question.

Thanks,

Siva Krishna.