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Are there open source projects that completely restore the inner circuitry of modern Intel CPUs? Not for modern CPUs. Not even for 10-15 years old CPUs. In 2015 the reverse engineering of Intel 8080 was finished, and this CPU is from 1974 year (actually, Soviet i8080 clone KR580VM80A from 1980s was reversed). Both CPUs were made with 6 μm feature size, ...


9

Frying your board: Just touching one single pin of a chip, or connecting it to ground over a reasonably high-resistance voltmeter, will generally not fry a board. However, there are ways to fry a board: static electricity. Every instruction to insert a PCI card in your computer comes with a warning about that, and there is a reason. However, i found ...


8

I had to add just a few things to have a clear mind (although the other answer is really good and got my up-vote already). Single pin touching with a probe can blow up your HW. And I do not mean the obvious static charge or what so ever from the common reasons. With nowadays chips some pins runs on very specific voltage ranges and even a high impedance ...


5

This video on YouTube can be a good start. Reverse Engineering the MOS 6502 CPU [27C3 (Chaos Computer Congress)]. Watching the video from minute 25 to 30 you can see how CPU dice was exposed and how the data were processed. Basically hi-res photos were stitched together and traced to create a vector image. This in turned was used to create a netlist used ...


4

I'm far from an authoritative source but I've personally never seen x-rays being used to identify anything but defects or bad joints under BGA chips. I don't think x-rays would be a good fit here because the die is extremely likely to appear like a solid blob with possibly the bonding wires visible. The cheapest way I know of to accomplish what you want to ...


3

OpenCores is a project aiming at rebuilding the design of usual integrated-circuits with Open Source licenses. One of the sub-project is dedicated to rebuild the i386 architecture, it is called Zet. I don't know how they rebuild the instruction set, there must be a bit of reverse-engineering. But, the specifications given by Intel should be enough (of ...


2

From a now deleted Quora comment: Smart Imaging Technologies (archive) can reverse to the gate level and output VHDL, but I don't know at which cost 3D x-ray tomography is a new technique in vogue, and might dispense scraping layers off the chip. Googling it leads to a few papers: http://iacr.org/archive/ches2009/57470361/57470361.pdf | http://dforte.ece....


2

I found this site containing a hires zoomable picture of the 80486. And here an effort to reverseengineer the AMD microcode format. Googling for siliconpr0n and intel yields even more people trying something similar.


2

https://www.st.com/content/st_com/en/products/memories/serial-eeprom/standard-serial-eeprom/standard-microwire-eeprom/m93c46-w.html PS:Sorry Robert, I do not yet have the right to comment


1

Theory of operation It's probably useful to understand a bit of how this works. Generally, the parts you have outlined in red are an infrared (IR) transmitter and receiver. It works by shining infrared light and then trying to see if there is any reflected, which happens if there is something (like a hand) that reflects IR. The transmitter is just an IR ...


1

The small chip is probably a one off chip made for whoever manufactured this board. Your best best bet is examining what the pins connect to and analyzing what they may do. Since its a one off chip the chance of finding a datasheet is slim to none. The big chip is a variation of the Intel 8051 which is common in 80's car technology. The datasheet can be ...


1

ReProgramming the processor is quite difficult (you will nead to create your own simi motherboard) . But reconstruct the microprocessor (changing its architecture and developing your own firmware by micro ops )is impossible in modern inter microprocessors . Even the updates to firmware is encrypted with key that is kept inside the processor. This beacause ...


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