IBM RS/6000 7043 43P Series

If you have a Model 150, your system unit has the following slots:
 Slot 1: 32-bit, 5-volt, PCI short card (secondary)
 Slot 2: 32-bit, 5-volt, PCI (primary)
 Slot 3: 32-bit, 5-volt, PCI (primary)
 Slot 4: 32-bit, 5-volt, PCI (secondary)
 Slot 5: 32-bit, 5-volt, PCI short card (secondary)
If you have a Model 240, your system unit has the following slots:
 Slot 1: 32-bit, 5-volt, PCI short card
 Slot 2: 64-bit, 5-volt, PCI
 Slot 3: 32-bit, 5-volt, PCI
 Slot 4: ISA
 Slot 5: ISA short card
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7043 43P Series User's Guide