Silicon Graphics Tezro, Hardware User'S Manual

Page: 51 / 174

Interface Board
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Interface Board
The interface board connects the processors and memory mounted on the node board to
the graphics and I/O components of the system. It also provides card slots for the PCI
and graphics boards and distributes power to the system components. The interface
board has the following connectors (see Figure 2-5):
• XIO Slot connectors
There are two XIO slots: one for the VPro graphics board, and one for the
DMediaPro DM3-to-VBOB board
• PCI Slot connectors
There are eight PCI-X slots divided into three buses. For more information on the
PCI slots and buses, see “PCI Buses” on page 38.
The interface board also supplies connectivity and power to many of the system
components through the following connectors (see Figure 2-5):
• L1 display connector
• LED connector
• Power input connectors
• Fan wall connector
Note:
Figure 2-5 depicts the interface board in a 2- or 4-processor workstation. The
interface board in a 1-processor workstation has 4 PCI-X slots (3 available) and 1 XIO slot.