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Correctable PCI errors and SER7 7840HS

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Post time 2024-04-19 02:45:34 | Show all posts |Read mode
I bought one SER7 7840HS in 2023. It works great and uses BIOS version SER7PRO_P5C8V28 with release date 08/14/2023.
I bought two more in March 2024 and both use BIOS version SER7PRO_P5C8V38 with BIOS version 1/10/2024.

I use Ubuntu 22.04 with an HWE kernel which is currently 6.5.0-27-generic.

On each of them I installed a Samsung 980 Pro device in the second m.2 slot. This worked fine on the older one with BIOS version SER7PRO_P5C8V28. But on the new ones with BIOS version SER7PRO_P5C8V38 there are a large number of correctable PCI errors reported in /var/log/syslog. The frequency of errors made boot slow, I have no idea whether it is bad for performance and I don't want that much spam in syslog.

The errors only occur when there is an m.2 device in the second slot and they occur with Gen3 PCI devices (Samsung 970 EVI) and Gen4 (Samsung 980 Pro, Crucial T500).

Perhaps a different version of the BIOS would fix the problem but it doesn't look like BIOS versions are available to download.

After searching Google for hours, something that made the errors go away was to add this to /etc/default/grub to disable ASPM (Active State Power Management).
GRUB_CMDLINE_LINUX_DEFAULT="pcie_aspm=off"




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Post time 2024-04-19 17:16:30 | Show all posts
hello, so now the error has gone, right? for the bios, if you need the bios, you could contact our after-sales email: support-pc@bee-link.com, thanks
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 Author| Post time 2024-04-20 01:36:45 | Show all posts
tuiguang7 replied at 2024-04-19 17:16
hello, so now the error has gone, right? for the bios, if you need the bios, you could contact our a ...

Support provided me the BIOS used by the old server (SER7PRO_P5C8V28) and I installed it on one of the new servers. But the errors continue. The workaround I suggested (pcie_aspm=off) doesn't work as I expected. So I will return the devices -- I purchased them on Amazon.
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Post time 2024-04-20 10:31:58 | Show all posts
mdcallag replied at 2024-04-20 01:36
Support provided me the BIOS used by the old server (SER7PRO_P5C8V28) and I installed it on one of ...

Hello there,

We also propose other solutions for your machine failure, I suggest you can check the email message.

Have a nice day!
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 Author| Post time 2024-04-21 06:19:22 | Show all posts
Checked it. The suggestions were:
1) Use the same brand of SSD in both m.2 slots
2) Upgrade the PCIe drivers

For #1 I tried that and the errors continue.
For #2 I don't think there are special drivers that I need to install -- I searched and did not find any. And mixed devices work great on the Ser7 7800HS I purchased last year. The problem only occurs on the two SER7 7800HS servers I bought in March 2024.
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Post time 2024-04-22 17:34:19 | Show all posts
mdcallag replied at 2024-04-21 06:19
Checked it. The suggestions were:
1) Use the same brand of SSD in both m.2 slots
2) Upgrade the PCI ...

HI ,How about you try SER7PRO_P5C8V28 BIOS version with updated Ubuntu kernel? or with the one kernel in 7840 you bought in 2023
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