Raptor Computing Systems Hardware > Blackbird

Support for POWER9 22core?

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surf:
It seems the limitation is power draw.  The supported 8-core part is listed at 160w in the IBM datasheet, and there are a variety of core configurations that are 160w or less:



So it looks like a 22-core CPU (at a lower speed) should work, if you can find one.  I think there are a variety of other CPU configurations floating around with part numbers that are not documented publicly.  For example, I can't find what a 02AA878 is, but you can buy one:

https://www.newegg.com/p/1B4-002U-00CR1

MPC7500:
Do not forget that datasheet is from 2018, referring to order numbers. And a 02CY644 should work at full speed in a Blackbird, according to this chart.

FlyingBlackbird:
Another aspect of getting non-supported CPUs to work with Blackbird is:


* Does the PNOR (https://wiki.raptorcs.com/wiki/PNOR) contain the Self boot engine (SBE) code (https://wiki.raptorcs.com/wiki/Self-Boot_Engine) for all IBM Power 9 CPUs or only the supported ones?
Or asked in another way: Is the SBE code generic?

> The SBE firmware is open source.

If this is fully true it should be generic code...

MPC7500:
It's generic.

https://twitter.com/octaforge/status/1126986296591831045?s=20

MPC7500:
FYI, on the talos IRC is someone who is running a 18-core (190W) POWER9 on a Blackbird. And another one has overclocked a 8-core to 4.3GHz

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