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[madscientist159]

Just to be sure, you are aware of the AMD PSP, correct? And the dangers of applying the same master cryptographic key to every CPU sold in a product...

[madscientist159]

Sorry, but I do need to correct this...while I cannot make any statements about POWER10 (this is because it isn't released yet by IBM), I can absolutely...

[madscientist159]

While I haven't tried it personally, it's apparently based on the same Polaris core that we ship en masse with the WX<n>100 cards, and that the...

[madscientist159]

Thanks for all the info! I think I'll pick up a Titan Ridge and give it a shot on one of my POWER boxes...fingers crossed......

[madscientist159]

Very interesting, I did not know about that!

Has anyone tried to decode the protocol? Is it crypto protected as was indicated some time...

[madscientist159]

Interesting. As far as I know it's still an Intel cryptographic (?) handshake though -- there's a certification process for the platform and my guess...

[madscientist159]

Was about to ask the same thing. That special header is partly for a hardware lock (dongle / DRM stuff) that stops the card working on non-Intel platforms....

[madscientist159]

Just saw this now. So I actually use a couple of these machines -- my daily driver is some RX5xx series card (I think it's a 580, lspci isn't too helpful),...

[madscientist159]

Agreed -- that's why we invested so heavily in OpenPOWER. Fully open firmware from the factory, no mysterious ME/PSP type management binaries, and an...

[madscientist159]

Of course it is. The main difference is that the processor is properly documented and has open firmware -- i.e., it should be possible for this type of...

[madscientist159]

This is showing more and more why documented, open systems like POWER or RISC-V are required for security. These kind of internal design flaws and hacks...

[madscientist159]

This answer any questions? Screenshot grabbed (and this post typed) from one of the larger workstations here in the office, running Debian Buster with...

[madscientist159]

Yep, definitely overclockable! That's one of the perks of a fully open firmware stack -- complete control of the clock controllers comes along for the...

[madscientist159]

Actually, no -- the total package power is just the top line, the other two lines are specific subsystems inside the package that are known to use a lot...

[madscientist159]

I can help there...from one of our 18 core test boxes at idle:

Chip 0 Nest:              +26.0°C  (lowest = +14.0°C, highest = +35.0°C)

...