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Chapter 6
Removing and Replacing Components
Removing and Replacing PCI/PCI-X Cards
218
Shared slots have card compatibility restrictions. If one of the shared slots is occupied then 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 will only run 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-X 133 MHz. Only slots 7 and 8
enable 133 MHz, PCI-X cards to run at full speed. These two slots are not limited by bus-mode or
frequency-related incompatibilities.
Table 6-4 lists the PCI/PCI-X cards vs. slot frequency/bus mode compatibility for shared slots.
PCI/PCI-X Card Path Logging
Some PCI/PCI-X failures result in I/O path logging. These paths help to indicate the source of the error and
may be included in the error message or logged into console or event logs.
Table 6-4 PCI/PCI-X Card vs. Slot Frequency/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 and
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
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 and 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