Fujitsu PRIMEPOWER900, Manual

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U41290-J-Z816-3-76 35
4.5 Basic I/O Board
4.5.2 Specifications of PCI slots
Some PCI cards are designed to operate only in slots with an input voltage of either
3.3 VDC or 5 VDC. Other PCI cards (universal type) are designed to operate at input
voltages of both 3.3 VDC and 5 VDC. Most PCI cards can operate at a clock
frequency of 33 MHz, but some PCI cards can operate only on a 66 MHz clock.
Select proper types of PCI cards to be mounted by referring to the information listed
in Table 4.2 and Table 4.3 . For information on the locations of PCI slots on the basic
I/O board, see Figure 4.7 .
Note: The columns above indicate the following information:
l
PCI bus group
The PCI bus group containing the PCI slot.
l
PCI card width
All PCI slots support a bus width of 64 bits. All PCI slots support either
64-bit or 32-bit PCI cards.
l
PCI clock rate (MHz)
This is the clock frequency of the relevant slot. If a PCI card operable at
both 33 MHz and 66 MHz is inserted into a PCI slot at 33/66 MHz, the
PCI card operates on a 66 MHz clock.
l
Card input voltage
This is the input voltage of the PCI bus of the relevant PCI slot.
- A PCI card operable only at 3.3 VDC will not work when inserted into
a 5 VDC PCI slot but will work in a 3.3 VDC PCI slot.
Table 4.2 Specifications of PCI slots on the basic I/O (board 0)
PCI slot
number
PCI bus
group
PCI card
width
[bits]
PCI clock
rate
[MHz]
Card input
voltage
Size
PCI #0 A 64/32 33/66 3.3VDC or Universal long
PCI #1 B 64/32 33 5VDC or Universal short
PCI #2 C 64/32 33/66 3.3VDC or Universal short
PCI #3 D 64/32 33 5VDC or Universal short
PCI #4 D 64/32 33 5VDC or Universal short
PCI #5 E 64/32 33/66 3.3VDC or Universal short
PCI #6 F 64/32 33 5VDC or Universal short
PCI #7 F 64/32 33 5VDC or Universal short