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Disable AMD PSP (lemm.ee)

submitted 3 days ago by [email protected] to c/[email protected]

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Hi guys, how y'all doin? I was thinking about building a new work/gaming PC in the near future and thought to myself I would go full AMD. Just wanted to ask if there are any modern motherboards in 2025 which support disabling or atleast turning of parts of AMD PSP?

Thx in advance.

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[–] [email protected] 2 points 3 days ago (1 children)

This statement sums it up for me; "The PSP can execute system workloads as well as workloads provided by trusted third parties. - AMD"

Its just a nice thing to have for me, not like a hard requirement, but I thought since I disabled Intel Management Engine on my Thinkpad a year ago I might as well give PSP a try.

[–] [email protected] 2 points 3 days ago

That's fair enough. I'll try to find out what these sorts of workloads are for peace of mind.

As far as I'm aware, this cannot be circumvented, though my information may be out of date. Maybe OpenSIL platforms will eliminate the need for PSP for core init altogether, but this is a ways away for client systems in any case.

A more pressing concern for me at the time of moving to AM5 was Pluton enablement, though it seems as though Pluton has mostly been abandoned by enterprise customers.

Interestingly, my client system has an option to enable this in its SBIOS, though it is thankfully disabled by default.