6 power consumption, 986lcd-m family – Kontron 986LCD-M-mITX (BGA) User Manual

Page 17

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986LCD-M Family

KTD-N0837-B

Public

User Manual

Date: 2012-04-17

Page

17 of 91


986LCD-M

Incl. CRT, PS/2
Kbd/Mse and HD

PSU

Gnd

Current
Probe

Tektronix TDS 7404

3.6 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 986LCD-M 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:


Test system configuration

The following items are used in the test setup:

1. 986LCD-M board equipped with CPU, RAM and 12V active cooler if required
2. ATX PSU
3. CRT, PS/2 keyboard & mouse and HD
4. Tektronix TDS 7404, P6345 probes
5. Fluke Current Probe 80i-100S AC/DC


Note:

The Power consumption of CRT, Fan and HD is not included.


Test results:

The power consumption of the 986LCD-M Board is measured under:

1- DOS, idle, mean

2- WindowsXP, Running 3DMARK & CPU BURN, mean

3- WindowsXP, Running 3DMARK & CPU BURN, peak

4- S1, mean

5- S3, mean

6- S4, mean

7- Inrush, peak

Supply

Min

Max

Note

Vcc3

3.135V

3.465V

Should be

±5% for compliance with the ATX specification

Vcc

4.75V

5.25V

Should be

±5% for compliance with the ATX specification

+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 986LCD-M/mITX board

5VSB

4.75V

–5.25V

Should be

±5% for compliance with the ATX specification

ATX supplies

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