Chapter 4
Removing and Replacing Components
Removing and Replacing Hot-Plug PCI-X Cards
75
• Slots 7 and 8 are single slots, they do not share a PCI-X bus. The maximum capability of each slot is
PCI-X 133 MHz. Only slots 7 and 8 allow 133 Mhz, PCI-X cards to run at full speed. These two slots are
not limited by bus mode frequency related incompatibilities.
CAUTION If you are using Linux Red Hat Enterprise Advanced Server 4 Update 3 operating system and
you want to install a 1000b-Sx GigE card, do not install it into a slot that shares a bus with a 33
MHz card. In this configuration the Linux driver will not initialize the new card.
Table 4-8 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 3,4-bus
2 and 5,6-bus 3). Slots 7 and 8 are not shared slots.
Current PCI Bus
Mode and
Frequency for
the Shared Slot
Cards to be installed
PCI 33 PCI 66 PCI-X 66 PCI-X 133
PCI 33 MHz
Compatible
b
b. Compatible: card is accepted and runs at frequency shown.
Compatible
(note b)
New card
running at
PCI 33
Compatible
(note b)
New card
running at
PCI 33
Compatible
(note b)
New card
running at
PCI 33
PCI 66 MHz Incompatible
-Frequency
c
c. Incompatible-Frequency: card is rejected. The new card will not initialized and
will power down due to frequency mismatch.
Compatible
(note b)
Compatible
(note b)
New card
running at
PCI 66
Compatible
(note b)
New card
running at
PCI 66
PCI-X 66 MHz Incompatible
-Frequency
(note c)
Incompatible-
Bus
d
d. Incompatible-Bus: Card is rejected. The new card will not initialize and will
power down due to bus mode mismatch.
Compatible
(note b)
Compatible
(note b)
New card
running at
PCI-X 66
PCI-X 133 MHz
e
e. Maximum bus mode and frequency supported on shared slots is PCI-X 66
MHz.
Incompatible
-Frequency
(note c)
Incompatible-
Frequency
(note c)
Compatible
(note b)
New card
Compatible
(note b)
New card
running at
PCI-X 66
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