Installing the System
Installing Additional Components
Chapter 3
102
Shared slots have card compatibility restrictions. If one of the shared slots is occupied, the card being
added to the second slot is limited by the configuration of the occupied slot. If the new card has a slower
capability than the current bus configuration, it cannot work. If the new card has a faster capability than
the current bus configuration, it only runs at the bus mode and frequency of the current bus
configuration.
• Slots 7 and 8 are single slots. The maximum capability of each slot is PCI/PCI-X 133 MHz. Only slots 7
and 8 allow 133 MHz, PCI/PCI-X cards to run at full speed. These two slots are not limited by bus-mode,
frequency-related incompatibilities.
Table 3-11 lists the PCI/PCI-X cards slot frequency and bus mode compatibility for shared slots.
Table 3-11 PCI/PCI-X Card Slot Frequency and Bus Mode Compatibility for Shared
Slots
a
a. The conditions described in this table apply only to shared slots (slots 3 and 4 on bus number 2,
slots 5 and 6 on bus number 3). Slots 7 and 8 are not shared slots.
Current PCI Bus Mode
and Frequency for the
Current Card in a
Shared Slot
Cards to be installed
PCI 33 MHz PCI 66 MHz PCI-X 66 MHz PCI-X 133 MHz
PCI 33 MHz
Compatible
b
b. Compatible: card is accepted and runs at the frequency shown.
Compatible
b
New card running
at 33 MHz
Compatible
b
New card running
at 33 MHz
Compatible
b
New card running
at 33 MHz
PCI 66 MHz Incompatible
frequency
c
c. Incompatible frequency: card does not work.
Compatible
b
New card running
at 66 MHz
Compatible
b
New card running
at 66 MHz
Compatible
b
New card running
at 66 MHz
PCI-X 66 MHz Incompatible
frequency
c
Incompatible bus
d
d. Incompatible bus: Card does not work. The new card does not initialize powers off.
Compatible
b
New card running
at 66 MHz
Compatible
b
New card running
at 66 MHz
PCI-X 133 MHz
e
Running at PCI-X 66 MHz)
e. Maximum bus mode and frequency supported on shared slots is PCI-X 66 MHz.
Incompatible
frequency
c
Incompatible
frequency
c
Compatible
b
New card running
at 66 MHz
Compatible
b
New card running
at 66 MHz
