IBM F50 RS/6000 7025 - Manual (Page 317)

Refer to the following diagram of your server's bays when completing Table A-2 on
page A-4.
Notes:
If you attach a drive or other device to an adapter, record the
expansion-slot number for that adapter in the
adapter field of table A-2.
Your model might have more preinstalled drives than shown in this table.
Appendix A. System Records A-3