4.4 Expanding the Server Unit
4.4.5 Adding PCI cards
There are three types of PCI card: a PCI card designed to operate in 3.3V slots, a PCI card designed to operate in
5V slots, and a PCI (universal) card design to operate in both 3.3V and 5V slots. Though most PCI cards operate
at a 33MHz clock, some cards operate at a 66MHz clock.
Refer to Table 4.5 and Figure 4.9 below for details of the PCI slot positions when installing PCI cards.
Table 4.5 PCI Slot Specifications
3.3V or Universal
6
5
4
3
2
1
D
C
B
A
A
A
64 / 32, 64
64 / 32, 64
64 / 32, 64
64 / 32, 64
64 / 32, 64
64 / 32, 64
33 / 66
33 / 66
33 / 66
33
33
33
3.3V or Universal
3.3V or Universal
5V or Universal
5V or Universal
5V or Universal
long
long
long
long
long
long
5V or Universal
10
9
8
7
F
E
E
E
64 / 32, 64
64 / 32, 64
64 / 32, 64
64 / 32, 64
33
33
33
33
5V or Universal
5V or Universal
5V or Universal
long
long
long
long
PCI
Bus
Slot / Card
Width (bits)
PCI Slot
number
PCI Clock
Rate (MHz)
Card Input
Voltage
long / short
65