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They used to publish the reference schematics on their site up until the P4 era, but I guess it made things like this too easy.
Reminds me of the "pencil trick" to overclock CPUs in the late 90s/early 00s. You'd rub a pencil over contacts on the CPU to bridge them, which would unlock the clock multiplier.
You rarely see those kinds of unlocks anymore unfortunately, since they started using eFuses to disable parts of the chip permanently. It still happens occasionally though, like the time when AMD decided to add a 4GB SKU alongside the originally planned 8GB SKU of one of their graphics cards so late in development that they didn't have time to actually change the hardware, so all of the initial batches had 8GB instal…
Similar to how you can use a socket 771 Xeon in a socket 775 mainboard with changing a few pins and mod the bios.
[0]: https://community.hwbot.org/topic/175489-asrock-z170-mocf-li...
Earlier quoted context omitted.
But if i can buy a new CPU for my motherboard i would be almost guaranteed to stay with Intel. Now ever upgrade is a chance to jump ship to the competition. There are probably people on their 3rd AM4 CPU with the same motherboard.
Intel only doing one upgrade per compatible mobo is kind of annoying. I had to buy and return a 6000 series CPU just to update my board's firmware so I could use the 7700k I intended to. How's the compatibility on the AMD side? Will a board work enough to upgrade itself with a newer CPU than it launched with?
This is dated 2024, but is talking about Intel 8th gen chips released in 2017.
The hackaday post is from this year, and talks about forum threads/guides from 2019. I would guess the author only learned about it or decided to write about it now. Even if it's not that useful to people nowadays, it's interesting to learn such a thing is possible.
2018, April
not saying this contributed significantly to Intels recent $7 billion loss in chip making, just that they probably shouldnt be pushing buyers away quite so hard given their current situation.