| Event Id | 5 |
| Source | acpi |
| Description | AMLI: ACPI BIOS is attempting to write to an illegal IO port address (0xcf8), which lies in the 0xcf8 - 0xcff protected address range. This could lead to system instability. |
| Event Information | According to Microsoft this occurs when you have a BIOS which is not 100% ACPI compliant. Obtain the latest firmware for your motherboard |
| Reference Links | Error Message: ACPI BIOS Is Attempting to Write to Illegal IO Port Address Error Message: ACPI BIOS Is Attempting to Write to an Illegal IO Port Address (0x80, 0x400, 0xcf8, 0xcfc) I/O Ports Blocked from BIOS AML on Windows XP |
Catch threats immediately
We work side-by-side with you to rapidly detect cyberthreats
and thwart attacks before they cause damage.