User`s manual

2.2 Alpha PCI 64–275 Board Connectors
Table 2–3 Module Connector Descriptions (See Figure 2–3)
Connector Pins Description
PCI Slots
J23 124 PCI expansion slot 3
J22 124 PCI expansion slot 2
J21 124 PCI expansion slot 1
J20 124 PCI expansion slot 0 (shared slot)
ISA Slots
J19 98 ISA expansion slot 2 (shared slot)
J18 98 ISA expansion slot 1
J17 98 ISA expansion slot 0
L2 Cache SIMM Slots
J13 160 L2 cache SIMM slot 1, data<127:64>
J12 160 L2 cache SIMM slot 0, data<63:00>
Keyboard Connector
J33 6 Keyboard connector
Mouse Connector
J34 6 Mouse connector
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Board Jumpers and Connectors 2–9