Could you please help to find the right BIOS or toHi there! Could you please help me ! I have a problem with my Pc.I installed Windows XP pro and since this I get error messages. Operation System : Windows XP Professional BIOS date : 09/07/00 BIOS type : Award Modular BIOS v4.51PGN BIOS ID: 09/07/2000-693-596-ITE86-2A6LGJ1HC BIOS Eval : V.993AS/993AN N10 09-07-2000 Chipset : VIA 82C691 rev 68 Superio : ITE 8661/SiS 6801 rev 6 found at port 279h I want to upgrade my BIOS because since the installation of Windows XP...I get constantly the error message ... 4563 » Your computers ACPI BIOS Is attempting to write to an illegal IO port address (0x80, 0x400, 0xcf8, 0xcfc) while running Windows XP? Microsoft Knowledge Base article Q283649 contains: The following error message(s) may be in Event Viewer: Source: ACPI Category: None Type: Error Event ID: 12 User: N/A Computer: Machine_Name Description: AMLI: ACPI BIOS is attempting to create an illegal memory OpRegion, starting at address 0x400, with a length of 0x100. This region lies in the Operating system's protected memory address range (0x0 - 0x9fc00). This could lead to system instability. Please contact your system vendor for technical assistance. For more information, see Help and Support Center at: http://go.microsoft.com/fwlink/events.asp Source: ACPI Category: None Type: Error Event ID: 5 User: N/A Computer: Machine_Name 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. Please contact your system vendor for technical assistance. For more information, see Help and Support Center at: http://go.microsoft.com/fwlink/events.asp Source: ACPI Category: None Type: Error Event ID: 4 User: N/A Computer: Thunderbird Description: AMLI: ACPI BIOS is attempting to read from an illegal IO port address (0xcfc), which lies in the 0xcf8 - 0xcff protected address range. This could lead to system instability. Please contact your system vendor for technical assistance. For more information, see Help and Support Center at: http://go.microsoft.com/fwlink/events.asp CAUSE This behavior can occur if your computer's basic input/output system (BIOS) attempts to write to a port in AML [Advanced Configuration and Power Interface (ACPI) Machine Language]. This attempt causes Microsoft Windows XP to prevent any access to that port. This feature has been designed to improve the stability of your computer's operating system. STATUS This behavior is by design. Contact the BIOS vendor for a possible BIOS update. For more information see: http://www.microsoft.com/HWDEV/Onnow/BIOSAML.htm

The URL I posting here may be your best bet. I did a search at Google and there were very few results. http://www.unicore.com/biosupgrades/

Go to the web site of the manufacturer of your motherboard. Pick the model and download it.