Kontron KTQ45-FLEX - Manual (Page 22)

KTD-00782-I KTQ45 family Page 22 of 92
2.6 Power Consumption
In order to ensure safe operation of the board, the ATX power supply must monitor the supply voltage and
shut down if the supplies are out of range – refer to the hardware manual for actual power specification.
The KTQ45/Flex board is powered through the ATX connector and the additional 12V separate supply for
CPU as specified in the ATX specification; besides this the power supplied to the board must be within the
ATX specification.
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 KTQ45 boards
5VSB 4.75V 5.25V Should be ±5% for compliance with the ATX specification
Static Power Consumption
The power consumption of the KTQ45/ATXu Board is measured under:
1- DOS, idle, mean
2- WindowsXP, Running 3DMARK 2001 & 2 x CPU BURN, mean
3- S1, mean
4- S3, mean
5- S4, mean
Test system configuration
Test system configuration
The following items were used in the test setup:
1. KTQ45/Flex board mounted w/ 3.00GHz (E8400) Core Duo & 1GB Samsung 1Rx8 PC3-10600U-09-00-
A0 1,5V DDR3 Ram
2. 12V active cooler
3. PS/2 keyboard & mouse (Mouse: Genius Netscroll+ Keyboard:ACK-595)
4. CRT (Nokia 477Pro)
5. HD (Seagate Barracuda 7200.10 160 GB)
6. ATX PSU (OCZ-420ADJ)
7. Tektronix TDS 224, P6345 probes
8. Fluke Current Probe 80i-100S AC/DC
Test setup
Note: The Power consumption of CRT, HD and Fan is not included.
ATX supplies
KTQ45/Flex
PSU
Gnd
Current
Probe
Tektronix TDS 224