Soupa on Twitter: "@KevinA1995 It's called a BSEL mod. Basically tricks the motherboard to run the front side bus at a 25% faster speed, overclocking the CPU proportionately. Only works on specific
BSEL mod for an old e4300 CPU thrown into an old Optiplex 755 uSFF : r/techsupportmacgyver
Need clarification on the q6600 BSEL mod to 3ghz | Overclock.net
Adventures in creating an OctoCore Mac Pro - Part 2
Adventures in creating an OctoCore Mac Pro - Part 2