Technical Reference
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2.6 Electrical Considerations
2.6.1 Power Supply Considerations
CAUTION
The external 19 V DC jack is the primary power input connector of Intel Desktop Board
DH61AG. However, the desktop board also provides an internal 1 x 2 power connector
that can be used in custom-developed systems that have an internal power supply.
There is no isolation circuitry between the external 19 V DC jack and the internal 1 x 2
power connector. It is the system integrator’s responsibility to ensure no more than
one power supply unit is or can be attached to the board at any time and to ensure
the external 19 V DC jack is covered if the internal 1 x 2 power connector is to be
used. A plastic lid for the external 19 V DC jack is provided in the accessories box
shall it be useful to the system integrator for this purpose.
Simultaneous connection of both external and internal power supply units could result
in potential damage to the desktop board, power supplies, or other hardware.
System power requirements will depend on actual system configurations chosen by
the integrator, as well as end user expansion preferences. It is the system
integrator’s responsibility to ensure an appropriate power budget for the system
configuration is properly assessed based on the system-level components chosen.
Table 40 lists example power consumption from both the board and typical system-
lev
el components.
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