http://krick.3feetunder.com/370mod/
Did it probably between 50 and 100 times back in the day, except with masking the pin instead of ripping it off the socket, faster and less prone to failures (like oops just pulled wrong pin out). Saved about $10 buying PGA vs FCPGA slotkets.
I was quite prolific when it came to selling budget gaming rigs in 1999-2010.
Slot1 taped B21(still remember pin designation to this day 😮), 3 more taped pins for 2.2-2.4V Vcore and bam 450-550 MHz CPU at a fraction of P2/P3 price on budget BX/ZX Zida boards.
Mendocino Celerons tapped out around 550 MHz, so overclocking PGA variants was most optimal with C366 model, anything higher and you maxed out at lower FSB (466@83, 466@75 etc).
FCPGA was good to 1GHz, with late steppings overclocking all the way to 1150 MHz! Selling overclocked Coppermine Celeron vs Duron was a tossup. Pretty much same performance, with Intel being slightly cheaper while AMD more modern/upgradeable.
Good times. Things got boring after Slot1 era for me, avoided Intel P4 altogether and went selling AMD full time until Core 2 came out.
