ACPI question \ VOGONS

ACPI question

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First post, by Mamba

Posted on 2024-10-19, 05:43

Mamba Offline

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Hello,
Just a question.
I have a WinXP installation with multiprocessor ACPI.
It is fully updated (all prior to sse2) and I prefer not to reinstall everything so I keep it when I swap motherboard.
I know how to do it.

The question is:
If I put a single cpu motherboard, would the performance be affected from the “wrong” ACPI?
I mean, it stays “multiprocessor” but system boot without problems.

I have not an identical config to do tests.

Thank you

Reply 1 of 2, by bakemono

Posted on 2024-10-19, 14:29

bakemono Offline

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This isn't really about ACPI, which is orthogonal to number of processors. There are a few system files (HAL and NTOSKRNL?) which are different depending on whether you run one CPU or multiple CPUs. If Windows is configured for multicore, you can still drop to one core and it will run. In theory, using the correct files for single core should perform better.

GBAJAM 2024 submission on itch: https://90soft90.itch.io/wreckage

Reply 2 of 2, by Mamba

Posted on 2024-10-19, 14:41

Mamba Offline

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Rank: Oldbie
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Joined: 2015-02-11, 09:25
Location: Milano - Italy

bakemono wrote on 2024-10-19, 14:29:

This isn't really about ACPI, which is orthogonal to number of processors. There are a few system files (HAL and NTOSKRNL?) which are different depending on whether you run one CPU or multiple CPUs. If Windows is configured for multicore, you can still drop to one core and it will run. In theory, using the correct files for single core should perform better.

Yes correct.
It was HAL indeed

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