Technology wise, the workaround is easy enough. Just replace the 32.768 KHz clock with an alternate clock to fool the processor into thinking it is not overclocked.
Practically speaking it's an uglier hack job than most would want to tackle.
32.768 KHz is used for the real time clock. Just replacing that crystal with a faster one would make the real time clock run fast.
Instead of replacing the crystal, the connection between the CPU and the 32.768 KHz signal could be broken and a faster frequency from another device put in, but not many will be up for that. It may not even be necessary to inject another signal. It looks from the schematic as if just tying the 32.768 KHz input pin either high or low might disable this "feature".
Motherboard manufacturers can probably put in a workaround.
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