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PB 386 33 Sockets

U9 8251
U10 8251
U48 DS1287 REAL TIME CLOCK BATTERY
U51 74LS612N
U77 80386 CPU
U79 80387 MATH CO-PROCESSOR (OPTIONAL)
U85
U86 74LS612N
U109 BIOS
U110 8273A
U111 8273A
U147 BIOS