Sun Microsystems, Inc.
Figure 3-9: PCI Expansion Slot Locations
The two PCI-X slots have a maximum operational speed of 100 MHz. It is important to note that if an expansion
card that operates at speeds less than 100 MHz is inserted into these slots, then the transfer speed along the
entire bus will be degraded, affecting embedded disk performance. Since the shared bus speed will be lowered
to the lowest common denominator, a 33 MHz expansion card will degrade performance more than a 66 MHz
expansion card.
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