IBM eServer 370 xSeries Installation Manual page 25

b. Turn off the server and peripheral devices.
c. Disconnect all external cables and power cords.
3. If you have not already done so, remove the top cover.
Attention: If the server is on, do not leave the top cover off for more than 30
minutes at a time.
4. Determine which expansion slot you will use for the adapter.
Note: Check the instructions that come with the adapter for any requirements
or restrictions.
Refer to the following illustration while you perform the following step.
5. If you are installing a hot-plug adapter, disable the PCI slot from your operating
system. Make sure that the Power On light 5 for the PCI slot is off. (Refer to
the documentation that comes with your operating system for information about
disabling a hot-plug PCI slot.)
Chapter 2. Installing options
13