Kontron EPIC/CE, User Manual

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4 Specifications
Kontron User's Guide EPIC/CE 16
4.3 Electrical Specifications
4.3.1 Supply Voltages
EPIC CPU boards can be equipped with two different power-supply connectors. The ATX connector version
requires at least +5V and +5V standby, while the AT connector version operates at +5V-only. The voltages
+3.3V, +12V, -12V and –5V are not required for the operation of the EPIC itself. Varying voltages may be
required for peripheral devices such as backlight inverters or PC/104 and PC/104-Plus extension
modules.
®
+5V DC +/- 5%
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+5V DC S/- 5%
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+3,3V DC (required for 3.3V PC/104-Plus extension cards)
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+12V DC (required for some PC/104, PC/104-Plus extension cards or for JILI cables)
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-12V DC (required for some PC/104, PC/104-Plus extension cards)
4.3.2 Supply Voltage Ripple
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100mV peak to peak 0 - 20MHz
4.3.3 Supply Current (typical)
The EPIC/CE is equipped with power-saving features. Different power-consumption tests were executed
to give an overview of the electrical conditions for several operational states. The board used a 256MB
SDRAM module for test results shown below. An attached hard disk was not supplied through the
measurement path, and there was no extension module in the system.
EPIC/CE 400MHz
Operational State ATX Power Supply AT Power Supply
+5V +5V Standby +5V only
DOS Prompt 2.32A 150mA 2,47A
DOS Standby 1.81A 150mA 1.95A
Windows Idle 1.91A 150mA 2.06A
Windows 100% CPU Load 2.22A 150mA 2.36A
Windows 3D performance 2.73A 150mA 2.96A
EPIC/CE 733MGHz
Operation State ATX Power Supply AT Power Supply
+5V +5V Standby +5V only
DOS Prompt 3.07A 160mA 2.98A
DOS Standby 2.11A 160mA 2.37A
Windows Idle 2.19A 160mA 2.51A
Windows 100% CPU Load 3.05A 160mA 3.41A
Windows 3D performance 3.59A 160mA 4.01A