diff --git a/admin-guide/troubleshooting/pcie_bus_error.md b/admin-guide/troubleshooting/pcie_bus_error.md
index 62584af..37ed973 100644
--- a/admin-guide/troubleshooting/pcie_bus_error.md
+++ b/admin-guide/troubleshooting/pcie_bus_error.md
@@ -7,7 +7,14 @@ Oct 05 11:26:19 pc16209.psi.ch kernel: pcieport 10000:e0:06.0: PCIe Bus Error: s
 Oct 05 11:26:19 pc16209.psi.ch kernel: pcieport 10000:e0:06.0:   device [8086:464d] error status/mask=00100000/00010000
 Oct 05 11:26:19 pc16209.psi.ch kernel: pcieport 10000:e0:06.0:      [20] UnsupReq          (First)
 ```
-you might try with disabling **Active State Power Management** (ASPM) in the kernel.
+or
+```
+Jan 31 09:29:29 pc16422.psi.ch kernel: pcieport 10000:e0:06.0: AER: can't find device of ID0030
+Jan 31 09:29:29 pc16422.psi.ch kernel: pcieport 10000:e0:06.0: AER: Uncorrected (Non-Fatal) error received: 10000:00:06.0
+```
+This are AER (Advanced Error Reporting) messages of the PCIe chip.
+
+One thing you might try is disabling **Active State Power Management** (ASPM) in the kernel.
 
 To do so set in Hiera
 
@@ -17,5 +24,6 @@ base::enable_pcie_aspm: false
 
 the apply it with `puppet agent -t` and reboot.
 
+AER: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/managing_monitoring_and_updating_the_kernel/assembly_advanced-error-reporting_managing-monitoring-and-updating-the-kernel
 
 Source: https://www.thomas-krenn.com/de/wiki/PCIe_Bus_Error_Status_00001100_beheben