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NVIDIA Begins Requiring Signed GPU Firmware Images
An anonymous reader writes: In a blow to those working on open-source drivers, soft-mods for enhancing graphics cards, and the Chinese knock-offs of graphics cards, NVIDIA has begun signing and validating GPU firmware images. With the latest-generation Maxwell GPUs, not all engine functionality is being exposed unless the hardware detects the firmware image was signed by NVIDIA. This is a setback to the open-source Nouveau Linux graphics driver but they're working towards a solution where NVIDIA can provide signed, closed-source firmware images to the driver project for redistribution. Initially the lack of a signed firmware image will prevent some thermal-related bits from being programmed but with future hardware the list of requirements is expected to rise.
I don't think you understand what these fake cards are.
They are legitimate $80 nvidia cards, flashed with modded firmware to enable cores and clock speeds that the silicon is incapable of handling (Hence why the chip became an $80 card in the first place, instead of a $300 card).
The modder then puts the flashed $80 card on e-bay for $200 and makes a sweet profit.
- To implement a chain of trust.
- To tighten their control.on the hardware you paid good money for.
- To fight terrorism, childporn, illegal goods.
On the other hand, nothing tastes quite as good as the tears of an engineering group that put several million dollars into R&D for a DRM scheme, just to have it broken by a Swedish teenager three days after their product goes live.
I'm trying to teach myself to set people on fire with my mind... Is it hot in here?
Quite often they're not even unlocking anything. Rather they're doing a dirty hack to change the bios information of the card to display something that it isn't. This isn't all that unfamiliar to those of us who were in the industry back in the mid to late 90's when scammers were resilking(cpu info used to be silk screened on, to counter this it's why all cpu's are now stamped) Cyrix cpu's as AMD and Intel. You only found out what the CPU actually was, when you plugged it into the board and it said "cyrix." And while there are cases of people doing this to binned parts, most of the time the links to enable those pathways are cut before they're made into a gpu to stop people from doing exactly that. And if you're wondering why, it's because Intel ran into a massive problem where fly-by-night companies would unlock the binned CPU, and then actually flashing the microcode to change what the CPU was.
The cheap and dirty way to unlock CPU's during that time period was to use a graphite pencil across a unfinished path. I think it was pin 14 or 23 on the board. Very nasty problems with Slot 1 cpus.
Om, nomnomnom...
You don't understand. All companies, AMD and Nvidia manufacture certain chips. Each chip has certain failure rates. When certain amount of cores fails, they are switched off in software and sold for less.
AMD does this. Nvidia does this. Pretty much everyone making complex chips does this. It's massively uneconomical to throw away an entire chip over partial failures.