Pci Hot-Plug Expansion Slots - IBM eServer xSeries 455 Faq

PCI hot-plug expansion slots

The xSeries 455 server has six hot-plug expansion slots on the PCI-X board. You
can install 64-bit, 3.3 V and universal adapters in these PCI slots. (5.0 V adapters
are not supported.)
v You can install both PCI and PCI-X adapters on the same bus. However, if you
v You can install PCI or PCI-X adapters with speeds faster than what is labeled for
v If you install a 33 MHz adapter and a 66 MHz adapter on the same bus, the bus
v Each expansion slot has a green power LED and an amber attention LED. The
v The internal PCI scan order for the xSeries 455 is as follows: first, the integrated
Fix
829482
Installation required
828402
Installation recommended
Related topics: "PCI hot-plug features with the Linux operating system" on page 20.
install a PCI adapter and a PCI-X adapter on the same bus, the PCI-X features
of the PCI-X adapter will be disabled, and the adapter will function as a PCI
adapter.
a particular PCI-X bus. For example, if you install two 133 MHz adapters into
slots that are labeled as 100 MHz slots, the adapters will operate at 100 MHz.
speed will match that of the slower adapter.
attention LED is visible on the back of the server, but you must open the server
cover to view both LEDs. With the server cover open, you can use the light pipes
on the PCI-X dividers to view the LEDs.
devices are scanned; then, PCI slots 1, 2, 3, 4, 5, and 6 are scanned.
If an RXE-100 enclosure is attached to an xSeries 455 server, the scan order is
as follows: first the integrated devices are scanned; then, PCI slots 1, 2, 3, 4, 5,
6; then, the RXE-100 PCI slots 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, and 18.
See the following table for additional information about the expansion slots.
Slot Bus
1 A
2 A
3 B
4 B
5 C
6 D
Notes:
1. The PCI bus letter designators appear in the documentation, on the system labels, and
in some configuration utilities.
2. The PCI bus numeric designators might appear in some error logs and diagnostic
programs.
Problem description
The memory page color is incorrectly initialized.
The backup (NTBackup.exe) utility stops during the backup
procedure. Windows logs event 8017.
1 2
Bus Supported adapter speed (MHz)
2 66
2 66
9 100 (133 if slot 4 is empty)
9 100 (133 if slot 3 is empty)
7 133
5 133
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Chapter 2. Hints and tips