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Chapter 3. Planning 69
Figure 3-2 x440 block diagram showing the internal PCI-X slots
These slots can accept adapters rated at speeds ranging from 33 MHz to 133
MHz. When deciding which adapters to put in which slots, we recommend you
use the Active PCI Manager wizard to help you determine the best slots to use.
See 5.1, “Active PCI Manager” on page 130 for details.
You should also consider the following:
Each adapter has a maximum rated speed and each bus also has a
maximum rated speed.
Installed adapters in a single bus will operate at the slowest of three speeds:
– The rated speed of adapter 1
– The rated speed of adapter 2 (if the bus the adapter is installed in has two
slots)
– The rated speed of the bus
Bus B supports one adapter at up to 133 MHz or two adapters at up to 100
MHz.
32-bit adapters can be installed in any of the slots and will run in 32-bit mode.
32-bit and 64-bit adapters can coexist in 64-bit slots in the same bus. The
32-bit adapters will run in 32-bit mode, and the 64-bit adapters will run in
64-bit mode.
Ultra160
SCSI
Gigabit
Ethernet
Video
USB
Kbd/Ms
RSA
33 MHz66 MHz
64-bit
66 MHz
64-bit
100 MHz
64-bit
133 MHz
66 MHz
RXE
Expansion
Port A
(1 GBps)
B-100
D-133C-133
CEC 1
2 GBps
PCI bridge PCI bridge
CPUs
L4 Cache
Processor/cache controller
Memory controller
Memory DIMMs
2 GBps
A-66
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