Removing or skipping ACPI requirement for retro multi processor server

Hi, I have similar issue like the guy here: Windows 7 - Skipping ACPI requirement | NTLite Forums

I have 6x Pentium Pro server from 2000’s and unluckily it does not have BIOS ACPI support.

There has been a similar manual approach for Windows XP:

Press F5, then choose MPS - Multiprocessor PC. But that does not work.

The last release that supports multiprocessor without ACPI was Whistler Server build 2493.

Basically I think I will need to mod ACPI.sys and perhaps Kernel32? I need Windows Server 2003 or Windows 7 or Windows XP working with SMP processor support and without ACPI.

This 6x Pentium Pro server beats Pentium 4 in multi-threading :wink:


Some information how to compile your own ACPI driver: Compiling ACPI v2.0 driver for Windows XP SP3 and Windows 2003 SP2 (x32/x64) - Windows XP - MSFN

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