Question ACPI BIOS is attempting to write an illegal IO port address (0x81) Event id:5. How to approach?

Sep 1, 2021
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Hi, I've been searching for a potential solution to these errors, but have so far been unsuccesful in eliminating them. So far I've attempted to update my bios, reinstalling both windows and drivers (on seperate occations).
Additionaly, windows is update to include all recent updates.
I will leave my setup here alongside the error message from the event viewer in the hopes that someone might have an idea of how to approach this.

Thank in advance!

Set-up:
Legion T5-26AMR5 Desktop (Lenovo) - Type 90RC

GPU: RTX 3060ti (driver: 30.0.14.7168)
CPU: AMD Ryzen 7 3700x (driver: 10.0.19041.546)
Motherboard: Lenovo 3716 (driver: 5.12.0.38)
BIOS version: O4MKT21A


PS. I might have left some crucial information out due to not being all that knowledgeable, as well as not being sure as to what to look for (ill update as needed).



Error message and details:

AMLI: ACPI BIOS is attempting to write to an illegal IO port address (0x81), which lies in the 0x81 - 0x83 protected address range. This could lead to system instability. Please contact your system vendor for technical assistance.

System:
Provider
[ Name] ACPI
- EventID 5
[ Qualifiers] 49157
Version 0
Level 2
Task 0
Opcode 0
Keywords 0x80000000000000
- TimeCreated
[ SystemTime] 2021-09-01T10:34:06.6605840Z
EventRecordID 6252
Correlation
- Execution
[ ProcessID] 4
[ ThreadID] 10752
Channel System
Computer DESKTOP-M4R2S7E
Security

Event data:

AMLI
0x81
0x81 - 0x83
000000000400300000000000050005C0000000000000000000000000000000000000000000000000
Binary data:

In Words

0000: 00000000 00300004 00000000 C0050005
0010: 00000000 00000000 00000000 00000000
0020: 00000000 00000000

In Bytes

0000: 00 00 00 00 04 00 30 00 ......0.
0008: 00 00 00 00 05 00 05 C0 .......À
0010: 00 00 00 00 00 00 00 00 ........
0018: 00 00 00 00 00 00 00 00 ........
0020: 00 00 00 00 00 00 00 00 ........
 
Sep 1, 2021
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Thank you for your quick reply!

Yes, I failed to mention that I've also tried this, both automatic (which leads to "No driver updates are required for your machine."), as well as manually updating the drivers.

Yet the error persists. Also, it appears to only occur as the system is booted.
 

Colif

Win 10 Master
Moderator
Sep 1, 2021
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No errors showing in device manager, nor is there any unknown devices.

The latest firmware has been installed, as well as BIOS being reflashed (both of which have been attempted on seperate occations).

The error has been occuring ever since I got the computer, about 5 days ago.
 

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