DX2-66 Upgrade Type-A Complex Detail (P/N 66G1087)

Original outline by Sandy with glue 74xx logic chips included.

U1 74F32 U2 74F125D U3 74F00 U4 74F04 U6 74F760D U10, U14-U18 74F244

U5 (PA2) 59G1883 U7 (DMA32) 10G7808 U9 169-pin LIF Socket for 486DX2-66 U12 (PF2) 59G1885 U13 66G1095 BIOS ROM Y1 66.666 MHz Osc