IBM H Series Installation And Service Manual page 180

Examples of AIX location codes displayed are:
Integrated PCI adapter
10-80 Ethernet
10-60 Integrated SCSI Port 1
30-58 Integrated SCSI Port 2 (Model H50 only)
10-88 Integrated SCSI Port 2 (Model H70 only)
Pluggable PCI adapters
20-58 to 20-5F Any PCI card in slot 1
20-60 to 20-67 Any PCI card in slot 2
10-68 to 10-6F Any PCI card in slot 3
10-70 to 10-77 Any PCI card in slot 4
10-78 to 10-7F Any PCI card in slot 5 (Model H50 only)
30-60 to 30-67 Any PCI card in slot 6 (Model H50 only)
40-58 to 40-5F Any PCI card in slot 5 (Model H70 only)
40-60 to 40-67 Any PCI card in slot 6 (Model H70 only)
30-68 to 30-6F Any PCI card in slot 7
30-70 to 30-77 Any PCI card in slot 8
30-78 to 30-7F Any PCI card in slot 9 (Model H50 only)
Integrated ISA adapters
01-D1 Diskette adapter
01-R1 Parallel port adapter
01-S1 Serial port 1 adapter
01-S2 Serial port 2 adapter
01-S3 Serial port 3 adapter
01-K1 Keyboard adapter
Non-integrated ISA adapters (Model H50 only)
01-01 First ISA card defined/configured
01-02 Second ISA card defined/configured
Device attached to SCSI controller
10-60-00-4,0 Device attached to Integrated SCSI Port 1
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RS/6000 Enterprise Server Model H Series Installation and Service Guide