Power Consumption - Kontron KTQM67/mITX User Manual

KTD-N0819-K

2.6 Power Consumption

In order to ensure safe operation of the board, the ATX12V power supply must monitor the supply
voltage and shut down if the supplies are out of range – refer to the hardware manual for the actual
power supply specification. Please note, In order to keep the power consumption to a minimal level,
boards do not implement a guaranteed minimum load. In some cases, this can lead to compatibility
problems with ATX power supplies, which require a minimum load to stay in regulation.
The KTQM67 board is powered through the ATX/BTX connector and ATX+12V connector. Both
connectors must be used in according to the ATX12V PSU standard. However the KTQM67/mITX also
supports single +12V via ATX+12V-4pin Power Connector, but power limitations apply to +5V, where
14x USB, LVDS panel or eDP panel, COM ports, LPT port and Frontpanel connector shares 9.5A.
ATX+12V-4pin power limitation is 145W, however more +12V power can be added via +12V and GND
terminals in the 24-pin power connector.
Warning: Hot Plugging power supply is not supported. Hot plugging might damage the board.
The requirements to the supply voltages are as follows:
Supply
VCC3.3 3.168V
Vcc
+12V
–12V –13.2V
-5V -5,50V
5VSB
Total System power example
I7-2710QE @ 2.10GHz, 1x 4GB Ram, 1x 500gb HDD, 1x DVD-ROM, PSU
Operation
Windows 7 32bit Idle
Windows 7 32bit 3Dmark 2003
Windows 7 32bit Intel Thermal Load
Note: Listed power consumptions are inclusive 15 - 25W for PSU, HDD and DVD.
More detailed Static Power Consumption
On the following pages the power consumption of different boards in different configurations are listed.
For each configuration the power consumptions result are listed in 5 tables:
1- DOS, idle, mean
2- Windows7, Running 3DMARK 2005 & BiT 6, mean
3- S0, mean
4- S3, mean
5- S5, mean
Note: some S5 measurements have been carried out in two sub modes M3 and Moff. Only S5/M3 mode
maintains power to the circuits used for AMT and waking up the system via LAN, Keyboard and USB,
while both S5/M3 and S5/Moff maintain power to RTC, Power Button In circuit and CMOS data.
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Min Max Note
Should be ±4% for compliance with the ATX specification
3.432V
Should be ±5% for compliance with the ATX specification.
4.75V 5.25V
Should be minimum 5.00V measured at USB connectors
in order to meet the requirements of USB standard.
Should be ±5% for compliance with the ATX specification
11.4V 12.6V
Should be ±10% for compliance with the ATX specification
–10.8V
-4.5V Not required for the KTQM67 boards
Should be ±5% for compliance with the ATX specification
4.75V 5.25V
Power Supplied via
ATX + 12V
33W
70W-88W
111W
System Specification
12V Only
36W
72W-96W
111W
KTQM67 Users Guide