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Table A-4 (Page 2 of 2). S2-S3-S4 Definition for devices/FRUs not defined in the PCI specification
Base Class S2 Sub-Class S3 -
S4
Description
1 A0 SCSI Drivers (generic)
B0 IDE Drives
C0 RAID Drives
D0 SSA Drives
E0 Tapes SCSI
E1 Tapes IDE
ED SCSI changer
EE Other SCSI device
EF Diskette drive
F0 CDROM SCSI
F1 CDROM IDE
F2 Read/Write optical SCSI
F3 Read/Write optical IDE
F4 - FF TBD media devices
5 A0 L2 Cache Controller including integrated SRAM
A1 L2 Cache SRAM
A8 NVRAM
A9 CMOS
AA Quartz/EEPROM
B0 - Bx Memory cards
Cyy Memory Dimms (Where C is S2, S3, or S4 and yy
identifies the memory size and type).
7 A0 I
2
C bus
8 A0 Power Management Functions
9 A0 - Ax Keyboards
B0 - Bx Mouse(s)
C0 - Cx Dials
D0 Tablet
D1 - Dx TBD input devices
B A0 Service processor
Appendix A. Interpreting Firmware Error Codes A-5