Raptor Computing Systems Hardware > Talos II

Trying to overclock, what is raptor-aggressive

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vmlinuz:
Thank you but this is all gibberish to me, I just want to know how to get it up to 4.2 GHz ultra turbo like the wiki describes, and then how to restore the original settings when I want better performance per watt.

ejfluhr:
Well, then sorry, I cannot help.  I would guess this is a pretty technical rabbit hole that likely few people have gone thru; maybe even only Raptor.   I was trying to contribute to the cause, exploring how to make it work by crawling thru all the code from Raptor & IBM in the repos.   It seems that Raptor figured it out, so the path to success is in there, somewhere.

vmlinuz:
I meant no offense, the information you provided was just way more technical than I expected and I was hoping for a simple answer - looks like the "simple answer" isn't supported anymore. 3800 MHz is plenty for now.

MPC7500:
IIRC, you have to change the tables in the OpenBMC source and compile.

It would be interesting to see how high a dual 22-core POWER9 can be clocked with nitrogen cooling 8)

surf:
Does the CPU have any of these settings in it?  Or does the BMC detect the chip and then know how to set it up?

It would be nice to control this on the fly.  Since these computers don't have a "sleep" mode then maybe the next best thing would be to drop the speed/voltage or even turn off cores?

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