Dell Precision 3660 PCIe Training Error

Question

Hello,

An end-user has a Dell Precision 3660 with 3 PCIe slots consisting of one x16 and two x4 slots. They are using a PCIe DAQ card from National Instruments PCIe-6351 to slot into one of either the x4 PCIe slots. However it is returning BIOS warning "PCIe - Training warning on device PCI tag-0400 VendorID-1093 DeviceID-C4C4 SVid-1093 SDid-742F Link Degraded maxwidth = x4. negWidth = x1".

I can confirm that the PCIe-6351 is a x1 PCIe compliant device. From below table, it says that this PCIe DAQ is also compatible with x1, x4, x8 and x16, I presume this is mechanically.

Can I confirm that the warning is because the PCIe slot is x4 electrically but is being slotted in with a x1 device?

Thanks, Sher

AdrianG001 · Answer

PCIe training error usually when the communication between the CPU, mainboard and the PCIe card are unstable or have bit errors, it would cause the system to a halt.

There are a few things can cause this error, ultimately a faulty hardware but not for your situation, yet. My advice is to check if the system's iDRAC/LCC, BIOS, other hardware and the PCIe card firmware is up to date. It would be good to check if the card that you are using is compatible.

SherLentic08 · Answer

Hey Adrian,

Thanks for the reply.

The PCIe card is newly bought so I guess that rules out the PCIe card firmware.

Cards are compatible at least that is from the manual of the card itself as on the snippet that I have provided on the original post. Not exactly sure if this is electrical and /or mechanical compatibility. This is something that I would have to check with the vendor.

I will check on non-card specific information. Thanks!

Inspiron

Dell Precision 3660 PCIe Training Error

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