Intel and AMD put a stop to this kind of hacking through a variety of methods, including locking the multipliers of various CPUs and, in some instances, building motherboards that didn’t respond well to bus overclocking to prevent counterfeit hardware from being hidden that way. In one memorable case, I had a customer show up with a no-name knockoff motherboard and a Celeron that insisted it was actually a Pentium II. Push a K6-2 266 up to 300MHz-333MHz, and you could pocket the additional premium between the two chips’ sale price. Back then, it wasn’t unheard of for unscrupulous individuals to save money by overclocking a CPU (typically by hardware jumper settings, though BIOS overclocking was in its early stages) and selling it as the more expensive part.
18-20 years ago, when I ran my own computer service and repair business, I had more than a few college students walk through the door with, shall we say, interesting hardware configurations. I was a bit surprised to read it because it’s been a long time since counterfeit parts were a major issue in the United States. Now, the utility has added a new feature - the ability to detect counterfeit cards. It’s capable of logging a number of GPU variables in real-time, which is useful for measuring throttling, clock, and fan speeds, and it can tell you a great deal about the specifics of your GPU’s support for APIs like Vulkan, OpenGL, and DirectX.
GPU-Z is a lightweight utility that’s frequently used to identify GPUs and parse their various characteristics.
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