Post error message with 2 x Grid K1 on Dell R720 + Sandy Bridge CPUs

We have several Dell R720 + 2 x Grid K1 where we are experiencing Post error messag when setting the Memory Mapped I/O above 4GB to Disabled. See attached screenshot.

I had initially posted this error on the Citrix XenServer GPU forum
http://discussions.citrix.com/topic/348151-is-dell-r720-2-x-grid-k1-supported-problem-at-boot-time/

Right now we are getting around this by setting under "miscellaneous settings" the "F1/F2 prompt on error" setting to be disabled (as suggested by Tobias).

All our 2 x K1 R720 configs are using the Sandy Bridge cpu (E5-2660). I do not have an easy way to test on Ivy Bridge config (E5-2680v2) as these systems are in prod with 1 x Grid K2 (GPU passthrough under XD 7.1).
R720_BootProblem.JPG

Didier, in reading the Citrix blog post, can you send the serial numbers and 900 numbers off the K1’s that are producing this issue? I know you ran updates and such but to reset the baseline can you send:

VBIOS version
PLX firmware version
Server BIOS
iDRAC version

Here are the information on latest system we re-installed / redeployed (couple of weeks ago).
I am experiencing the same issue with BIOS 2.1.2.

I used lifecycle controller to update the system firmware.
BIOS Version 2.2.2
Firmware Version 1.56.55 (Build 05)

from the output of nvidia-smi -a

VBIOS Version                   : 80.07.6D.00.01
VBIOS Version                   : 80.07.6D.00.02
VBIOS Version                   : 80.07.6D.00.04
VBIOS Version                   : 80.07.6D.00.03
VBIOS Version                   : 80.07.6D.00.01
VBIOS Version                   : 80.07.6D.00.02
VBIOS Version                   : 80.07.6D.00.04
VBIOS Version                   : 80.07.6D.00.03

As far as I can tell our boards have the first PLX firmware
Bridge Chip
Type : PLX
Firmware : 0

Our K1 are from the first generation / GA batch…

I have not updated the VBIOS based on the release notes I found (multi-monitor support).

Hope this helps.