IBM eServer 250 xSeries, Руководство пользователя

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42
IBM® xSeries 250: User’s Reference
The following illustration shows the location of the 64-bit PCI expansion slots on the
processor board.
Note: The illustrations in this book might differ slightly from your hardware.
Adapter considerations
Before you continue with the adapter-installation procedure:
• Review the documentation that comes with the adapter and follow those
instructions in addition to the instructions given in this chapter. If you need to
change the switch or jumper settings on your adapter, follow the instructions that
come with the adapter documentation.
• Slots 3 through 6 support 5.0V, 3.3V, and universal PCI adapters.
Note: Universal PCI adapters support both 3.3V and 5.0V operation.
• Slots 1 and 2 support 3.3 V and universal non-hot-plug PCI adapters only.
• Your server uses a rotational interrupt technique to configure PCI adapters.
Because of this technique, you can install a variety of PCI adapters that currently
do not support sharing of PCI interrupts.
• The system scans PCI slots 1 through 6 to assign system resources; then, the
system starts (boots) the PCI devices in the following order: processor board
devices, slots 1 and 2, and then slots 3 through 6.
• The performance of the PCI adapters depends on the types of adapters in your
system.
Non-hot-plug PCI slots
1-2 (on PCI bus A)
Hot-plug PCI slots
3-6 (on PCI bus B)
External Attention LEDs for
hot-plug slots
Internal Attention LEDs for
hot-plug slots
Power LEDs
for hot-plug slots