Rear Panel Components - Silicon Graphics Origin 3900 User Manual

12: InfinitePerformance Graphics Components

Rear Panel Components

178
The V-brick has the following rear-panel components (see Figure 12-3):
• PWR (power) connector. This connector connects the V-brick to a power bay, which
provides 12-VDC and 48-VDC power to the V-brick.
• Power switch. Move the power switch to the
L1 controller within the V-brick, and to the
• 48-VDC and 12-VDC LEDs. The power switch must be in the ON (
these LEDs to be on. The 12-VDC LED illuminates green when the L1 controller is
powered on. The 48-VDC LED illuminates green when the rest of the V-brick
internal components are powered on.
• XIO slots. The four XIO slots can seat one or two V12 VPro graphics board. Slots 1
and 2 seat one graphics board and slots 3 and 4 can seat the other graphics board. If
the V-brick contains only one graphics board, the board resides in slots 1 and 2. Slots
3 and 4 are covered with blanking plates.
Warning:
To avoid personal injury or damage to your system, only qualified SGI
system support engineers (SSEs) can install and replace V12 VPro graphics
boards.
• XIO 10 and XIO 11 connectors. Each connector can connect the V-brick to one IP53
node board. When the V-brick contains two V12 VPro graphics boards, the both XIO
connectors must connect to IP53 node boards.
• XIO connector LEDs. Each connector has two LEDs, as follows:
– The yellow LED illuminates to indicate that both the V-brick and the IP53 node
board to which it is connected are powered on.
– The green LED illuminates when a link has been established between the
V-brick and the IP53 node board to which it is connected.
position to power on the
1
position to power off the L1 controller.
0
) position for
1
007-4653-001