IBM Security Camera 343 Manual de usuario Pagina 34

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22 xSeries 343 Hardware Maintenance Manual
Riser Boards
The server board includes two riser boards, a 5 Volt full height riser board, and a 3.3 Volt riser
board. Features of the 5 Volt riser board include:
Support for three 33 MHz 5 Volt 64-bit PCI add-in cards
Provides 5 Volt to 3.3 Volt signal level translation
The 5 Volt riser board contains voltage level translation converting the 5 Volt PCI add-in card
signals to conform to the server board, which has 3.3 Volt signaling levels. The board supports up
to 50 W total with a limit of 25 Watts per slot. Figure 6 illustrates the 5 Volt riser board.
Figure 6. 5 Volt Riser Board
The 3.3 Volt riser board supports three 3.3 Volt 64-bit slots at 66 MHz. The board supports up to
30 W total power consumption. Figure 7 illustrates the 3.3 Volt riser board.
Figure 7. 3.3 Volt Riser Board
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