How can I determine what BIOS a pc is using? Basically I want to request a slic 2.1 mod but I dont know the type of bios this pc has: HP Compaq dc7700 Small Form Factor I believe that right know it has a slic 1.0 because the OEM sticker for XP is on the machine. Here is an RWEverything report of all the ACPI tables: View attachment acpitbls.zip btw its zipped.