Fail Support Assists PCI Bus - Functional Tests - D0701

Lucky! its no trouble, Thank you.

My laptop is Dell G15 5511, one week ago I have updated BIOS to 1.14.0 and discrete graphics driver use supportassist. In the past few days, it often beeps when it is turned on, the browser is obviously stuck, the mouse movement takes a few seconds to be reflected on the screen, and the frame rate drops and freezes obviously when playing games. The auto-switching of the discrete graphics card will occasionally cause the system to crash (seems like a multiplexing crash). So I Test it and show me "- PCI Bus - Functional Tests -D0701" . Hopefully it's just a software or other program glitch, hardware circuit chip damage is too inconvenient for my area.

My Precision passes all diagnostics at bios level, only SupportAssist gives the error.

Exactly the same for me. Dell have been advising certain things and no change. Another colleague with the same laptop has the same issue, so I think this is more generic with one of the drivers.

If support assist shows an error code and failure, there is a problem.

I would highly advice not to ignore this error and contact @DELL-Cares if the diagnostics show an error code.

It could be related to a BIOS or firmware update, but it could also be an actual hardware failure.

Same issue here. Unsure why they can't figure it out.

same issue on my G15 5511 (1 mo. old)  ran the diagnostic no issues found computer seems to be working fine but it's annoying b/c the error code isnt going away.

I know this isn't a true fix, but this thread's solution discusses how to disable automated scans which should help prevent the message for now. It details how to give you a bit more control over when/how things are run with SupportAssist.   

I have just discovered this issue. My laptop is 1 mo old and does not show any issues. I discovered this after running SupportAssist for no real reason. Of all laptops I had, all of them had some issue sooner or later. 

I'm having the same problem, it doesn't seem to be anything serious. I contacted Dell Support and they said it was nothing but a SupportAssist error, not a hardware issue.

That makes me sad, I'm sorry I hope they have a resolution soon.

I solved it for myself. I uninstalled Support assist and haven't had the problem since.

I chatted with support and they gave me instructions how to do PSA test. I did that and it shows no issues. Then I went back and did the hardware test again and PCI sub was not failing any more, but I got two other failures. Now there is a contradiction between the PSA test and the support assist test. My computer is working fine, it does not show any issues on the surface day to day. 

YES YES YES