IBM eServer xSeries 255 Installation Manual page 18

This section contains the procedure for installing a hot-plug or non-hot-plug PCI or
PCI-X adapter. If your operating system supports hot-plug PCI or PCI-X adapters, you
can replace a failing hot-plug PCI or PCI-X adapter with a new hot-plug PCI or PCI-X
adapter of the same type without turning off power to the server. If your operating sys-
tem and adapter also support the hot-add feature in slots 4 through 7, you can install a
new adapter without turning off the power to the server.
Note: You do not have to turn off the server to install hot-plug adapters in the hot-plug
Important: Do not remove a hot-plug PCI or PCI-X adapter before performing the
operating-system-defined procedure for disabling the Active™ PCI-X (hot-plug) slot
that contains the adapter. Failure to do so might cause your system to lock up. See
your operating-system documentation.
For more detailed instructions, information, and additional system-board illustrations,
see the Option Installation Guide on the xSeries Documentation CD.
The following illustration shows the location of the adapter slots for the xSeries 255
Type 8685 server.
Note: A cable is attached to the hot-plug PCI-X switch card at system-board connec-
PCI Slot 1
32-bit
33 MHz (J26)
PCI-X Slot 2
64-bit
100 MHz (J27)
PCI-X Slot 3
64-bit
100 MHz (J28)
PCI-X Slot 4
64-bit
100 MHz (J29)
PCI-X Slot 5
64-bit
100 MHz (J30)
PCI-X Slot 6
64-bit
100 MHz (J31)
PCI-X Slot 7
64-bit
100 MHz (J32)
6
IBM xSeries 255 Type 8685:Installation Guide
slots. However, you must turn off the server when performing any steps that
involve installing or removing cables.
tor J20 so that the hot-plug function will work properly for PCI-X slots 2 through
7. Do not disconnect this cable.
Hot-plug PCI-X switch card (J20)