Datapath ImageDP4 User Manual page 10

Installing the Display Drivers
Once the ImageDP4 card has been installed and the boot messages are appearing on the correct monitor,
you can start Windows.
Boot the system into Safe Mode then Log on as a user with administrative access rights.
The Found New Hardware Wizard will announce that new hardware has been found.
Do not use the Found New Hardware Wizard to install the ImageDP4 drivers.
Install the display drivers from the Software Installation Suite CD supplied with the ImageDP4 card.
If your final configuration has less than four screens select the number of screens required, otherwise
select four screens.
Restart the machine.
When Windows starts up, the desktop should be spread over all the screens connected to the ImageDP4.
Installing the Additional ImageDP4 Cards
As the number of required screens increase, the likelihood of reaching a system limitation or encountering
a problem increases. The system limitations are the amount of address space available and the capacity of
the power supply.
Please consult Datapath support if you have any problems installing multiple cards.
Power
The amount of current a power supply can deliver on each voltage rail is limited. Often there is also a limit
on the total power.
Each ImageDP4 card requires 0.25A at +3.3V and 1.2A at +12V.
You can calculate the amount of current and the amount of power required for the ImageDP4 cards. For
example, the requirements for a 24-screen system of ImageDP4 cards is calculated as follows:
Current
+3.3V 6 x 0.25A = 1.5A
+12V 6 x 1.2A = 7.2A
Power
( 3.3V x 1.5A ) + ( 12V x 7.2A ) = 91.35W
These are the requirements for the ImageDP4 cards; you must take into account the requirements of all
the other devices in the system.
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