ronch wrote:Besides, how would you do it with the heatsink on?
IMO it is not that fishy, it is implementation details that are just not to be disclosed. High resolution die shots already give competitors enough insight into the implementation (and large enough competitors will use scanning electron microscope to augment their reverse engineering efforts).ronch wrote:I was afraid you'd say that. I have a feeling those pretty die shots are nothing more than marketing material and the core numbering is there just because. When I asked AMD for core numbering info about Phenom II, the tech support guy just pulled a picture from somewhere in the Net. I can't remember clearly but it seemed like there was something fishy about his response.
I thought you just need to put the sensor in the right distance and it will probe properly? I never use those things so I can't say for sure.ronch wrote:I actually once thought about what you said, about just getting some sort of infrared heat sensor and track which part of the die is heating up while loading cores individually, but those things are pricey. Besides, how would you do it with the heatsink on?
Probably a combination of internal implementation, microcode on the CPU, and BIOS code.ronch wrote:Yes, I'd imagine so. I once considered core numbering to 'reset' everytime the system turned on or restarted, but that would be a bit messy, wouldn't it? I also imagine the BIOS needs to start off with a 'default' core first, probably Core 0, assign the OS to this 'default' core during boot, then things could just spread out to other cores from there.
Thank you for contacting AMD!
I understand you are looking for some technical documentation on the FX-8350.
Please be advised that AMD holds the right to not provide proprietary technical documentation to the general public. Unless you are a major embedded partner of AMD, chances are you will not gain any access to this information.
Please go to this link for specific technical documentation to the general public.
You can try reviewer sites like Tomshardware.com, Anandtech.com, and Hardwarecanucks.com to find out some of the diagrams that show the CPU die.
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