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PB 301 CPU Upgrade

Warning Only authorized service personnel should upgrade the system. Anyone who wants to upgrade the system herself/himself should know about the dangers of ESD (Electro-Static Discharge) and the necessary precautions. Unknowingly zapping the components of the computer will void the warranty.
 
 
An 80387SX Co-processor can be installed in socket U58, no jumpers need to be changed. NOTE: Co-processor speed must match system speed.