Intel i486 DX2 Microprocessor on the IBM daughtercard with the pad removed. This was pulled from IBM ThinkPad 755Cs (Model Number 9545-E0C) (Observe) SB80486DX2-50 Date of Manufacture: 4th week of 1994 sSpec: SX825 IBM Part Numbers: FRU P/N 84G4288 FRU P/N 59G4056 P/N 59G4009