User`s manual

4.3 dc Power Distribution

The AlphaPC64 derives its system power from a user-supplied, industry-

standard PC power supply. The power supply must provide +12 V dc, –12 V

dc, –5 V dc, Vdd (+5 V dc), and +3.3 V dc. The dc power is supplied through

power connectors J27, J28, J29, and J31 (see Figure 4–4). Power is distributed

to the board logic through dedicated power planes within the 6-layer board

structure.

Functional Elements 4–7