Compaq AlphaServer GS60 Operation Manual page 93

If a PCI shelf has neither a KFE70 or KFE72, it contains 12 slots for PCI adapters.
numbered right-to-left from 0 to 11.
Configurations with a KFE70
The KFE70 consists of two modules. With OpenVMS and DIGITAL UNIX, the
KFE70 adapter provides I/O for the floppy device in the system cabinet, and provides
the capacity for EISA options.
If no EISA options are to be used, ten slots are available for PCI options (slots 0 and 2
are used by the KFE70 standard I/O and connector modules).
If EISA options are to be used, Figure 4-4 shows the allowable configuration of PCI
and EISA options.
•
With no PCI options, eight slots are available for EISA options. Slots 0, 2, 6, and
10 cannot be used because slots 0 and 2 are occupied by the modules of the KFE70
and because the alignment of the connectors for EISA options does not allow
connection of EISA modules through slots 6 and 10.
•
With a mixture of PCI and EISA options, the number of available slots is nine (if
there is only one PCI or EISA option) or 10 (if there are at least two PCI or EISA
options).
Configurations with a KFE72
The KFE72 consists of four modules, and is supported by a DWLPB (DWLPA does
not support the KFE72). With Windows NT systems, one shelf (on hose 1) must
contain a KFE72 adapter for system I/O devices. Figure 4-5 shows that the KFE72
uses slots 0–4 for modules. Slots 5 –11 are available for PCI devices.
Figure 4-5 PCI Slot Configuration Used with the KFE72
11 10 9
8 7 6 5
4 3
2 1 0
Standard I/O module
Serial port module
Connector module
Parallel port assembly
Graphics module
PCI options
I/O Subsystems 4-17
BX-0645A-97