KTQM67 Users Guide
KTD-N0819-E Page 20
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. 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 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.
The requirements to the supply voltages are as follows:
Supply
Min
Max
Note
VCC3.3
3.168V
3.432V
Should be
±
4% for compliance with the ATX specification
Vcc
4.75V
5.25V
Should be
±
5% for compliance with the ATX specification.
Should be minimum 5.00V measured at USB connectors
in order to meet the requirements of USB standard.
+12V
11.4V
12.6V
Should be
±
5% for compliance with the ATX specification
–12V
–13.2V
–10.8V
Should be
±
10% for compliance with the ATX specification
-5V
-5,50V
-4.5V
Not required for the KTQM67 boards
5VSB
4.75V
5.25V
Should be
±
5% for compliance with the ATX specification
Total System power example
I7-2710QE @ 2.10GHz, 1x 4GB Ram, 1x 500gb HDD, 1x DVD-ROM, PSU
Operation
Power Supplied via
ATX + 12V
12V Only
Windows 7 32bit Idle
33W
36W
Windows 7 32bit 3Dmark 2003
70W-88W
72W-96W
Windows 7 32bit Intel Thermal Load
111W
111W
Note that the above listed power consumptions are inclusive 15 - 25W (depending on actual load of
PSU) for PSU, HDD and DVD.
More detailed Static Power Consumption
On the following pages the power consumption of different KTQM67 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.
System Specification
