Apple powermac g3 blue.white Manuale Di Servizio

 

 Troubleshooting

General/PCI Expansion Slots - 15

 

The logic board uses the industry-standard peripheral component 

interconnect (PCI) bus for an I/O expansion bus. The Power 

Macintosh G3 has a primary 66 MHz bus and a secondary 33 MHz 

PCI bus. The 66 MHz bus is a 32-bit multiplexed address and data 

bus. The 33 MHz bus is a 64-bit multiplexed address and data bus.

The primary PCI bus, includes slot #1 (see graphic below), 

which accommodates only 32-bit 66 MHz +3.3V PCI cards. 

However, the Power Macintosh G3 computer is always configured 

with an Apple 2D/3D accelerated graphics card installed in slot 

#1, therefore it is not available for PCI card expansion unless the 

card is removed. 

The secondary PCI bus includes slots #2, #3, and #4 (see 

graphic below), which accommodate both 32-bit and 64-bit 33 

MHz +5V or 3.3V PCI cards. The logic board accepts standard