Any help with my problem would be gratefully accepted.
I have a Compaq Presario 5116EA with Intel Celeron X86 Family 6 Model 8 Processor 797 MHz. I have upgraded to Windows XP Pro Version 2002 Service Pack 2 and added 256 mb of memory, increasing it to 512mb by adding a PC133 CL2, Non ECC, Non-parity, unbuffered stick to the original crucial PC133u 133 MHz stick. This was checked by crucial software to ensure correct memory added . Since then my PC freezes very regularly. The Event Viewer in the 'system' folder with the source 'acpi' shows the folowing error for each 'freeze':
AMLI: ACPI BIOS is attempting to read from an illegal IO port address (0x75), which lies in the 0x74 - 0x76 protected address range. This could lead to system instability
It locks up much less often when I try just the 1 stick of 256 mb ( be it with the original or just the new one)