Intel 5800/120Ld manual Expansion Slots, Bit PCI Connector Slots

I/O Expansion Slots

The server's expansion capabilities meet the needs of file and application servers for high performance I/O by providing a combination of PCI and ISA expansion slots.

The system board has two 66 MHz PCI connector slots (Figure 1-6, A) that can accommodate either a 32 or 64 bit PCI card and one 33 MHz PCI connector slot (Figure 1-6, B) that can accommodate either a 32 or 64 bit PCI card. The top two PCI connector slots (PCI 1 and PCI 2) support bus speeds up to 66 MHz. The third connector slot (PCI 3) supports a bus speed of up to 33 MHz.

Note: The bus speed for the two 66 MHz PCI connector slots (PCI 1 or PCI 2) is decreased to 33 MHz if a PCI card is installed into connector slot PCI 3 or if a 33 MHz PCI card is installed into any one of the two 66 MHz PCI connector slots.

PCI features:

!Bus speed up to 66 MHz (PCI 1 and PCI 2)

!Bus speed up to 33 Mhz (PCI 3)

!32-bit memory addressing

!5 V/3.3 V signaling environment

!Burst transfers up to a peak of 264 MB/s (64 bit, 33 MHz PCI) and 528 MB/s (64 bit, 66 MHz PCI)

!8-, 16-, 32-, or 64-bit data transfers

!Plug and Play ready

!Parity enabled.

A

B

Figure 1-6. 64 Bit PCI Connector Slots

System Overview 1-9