Question
We are testing K80 with your 7048GR-TR and have been seeing following errors from nVidia NVQual verification.

The GPU SBIOS mapping test is designed to verify the BAR1 mapping requirements for NVIDIA GRID and Tesla products.

For NVIDIA vGPU application, the GPUs should be mapped below the 4GB address space (BAR1<32b). For all other applications for Tesla and GRID, the BAR1 for each GPU should be mapped 32-bit and 42-bit (4GB - 4TB).

The NVIDIA GPUs should not be mapped above the 42-bit address space.

Test Running ... Please Wait...


SBIOS Mapping Results:

+---------+--------------+--------+

| GPUID | BAR1 Mapping | Result |

+---------+--------------+--------+

| 04:00.0 | BAR1>42b | Fail |

| 05:00.0 | BAR1>42b | Fail |

+---------+--------------+--------+

Any BIOS settings we should configure to meet the PCI Base Address Registers requirement?
Answer
According to the nVidia’s K80 system design guide, the BAR address will be located between 32bit < BAR < 42bit.

To meet the requirement, you need to do following changes in the BIOS settings menu :

Advanced->PCIe/PCI/PnP configuration-> Above 4G Decoding = Enabled

Advanced->PCIe/PCI/PnP Configuration->MMIOH Base = 256G

Advanced->PCIe/PCI/PnP Configuration->MMIO High Size = 128G
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FAQ Stats
FAQ ID Related Category / Keyword Date Posted Code
20016 Peripherals:
- VGA (PCI-e)
01/22/15


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