IBM xSeries 440 8687, Hardware Maintenance Manual

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Note: The scan order for xSeries 440 server models 1VX, 2VX, 3VX in a 16-way
configuration is as follows:
– If two servers are cabled together, the scan order will be the primary
server, then the secondary server. The PCI slots are scanned in the
following order: PCI-X slots 1, 2, 3, 4, 5, 6 in the primary server then
PCI-X slots 7, 8, 9, 10, 11, 12 in the secondary server.
– When two servers are cabled together and share an RXE Expansion
enclosure the PCI slots are scanned in the following order: PCI-X slots
1, 2, 3, 4, 5, 6 in the primary server then PCI-X slots 7, 8, 9, 10, 11, 12
in the RXE Expansion enclosure; then, PCI-X slots 13, 14, 15, 16, 17,
18 in the secondary server and finally PCI-X slots 19, 20, 21, 22, 23,
24 in the RXE Expansion enclosure.
v You can use the Configuration/Setup Utility program to change the sequence and
have the server scan one of the first six PCI slots before it scans the integrated
devices. You cannot change the scan sequence of the PCI slots in an RXE-100
enclosure.
v
You can install both PCI and PCI-X adapters in any slot, but try to group the
PCI-X adapters in separate busses from PCI adapters. If they must share the
same bus, the PCI-X device will default to the lower performance PCI mode of
operation.
v You can install an adapter with a speed faster than the label on a particular
PCI-X slot. However, the device will only operate at the speed indicated on the
label.
v If you install a 33 MHz and a 66 MHz adapter in the same bus, the bus speed
will match that of the slowest adapter.
v If a single 133 MHz adapter is installed in PCI-X Bus B (slot 3 and 4), and the
other slot in PCI-X Bus B is empty, the adapter will operate at 133 MHz.
v The server supports six hot-plug 64-bit adapters in the expansion slots located
on the PCI-X board.
Note: You can add up to 12 additional PCI-X slots to the server by connecting
the server to a remote expansion enclosure (models 1RX, 2RX, 3RX,
4RX, 5RX, 6RX, 7RX, 3RY, 4RY only). For more information about the
expansion enclosure and how to connect the server to it, refer to the
documentation that comes with your expansion enclosure.
Bus Bus no. Slot Supported adapter speed (MHz)
A 2 1 66
A 2 2 66
B 9 3 100 (133 if slot 4 is empty)
B 9 4 100 (133 if slot 3 is empty)
C 7 5 133
D 5 6 133
E 0 — 33 (reserved)
F 1 — 66 (reserved)
Note: BIOS refers to bus numbers in numerical format.
v The server supports 3.3 V adapters; it does not support 5.0 V adapters.
v The server uses a rotational interrupt technique to configure PCI-X adapters. You
can use this technique to install PCI-X adapters that currently do not support
sharing of PCI-X interrupts.
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xSeries 440 Type 8687: Hardware Maintenance Manual