8 power specifications, Power specifications, Intel – ADLINK Express-LPC User Manual

Page 10: Cmos battery power consumption

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Express-LPC User’s Manual

Page 10

2.8 Power Specifications

f

Input Power: AT mode (12 V) and ATX mode (12 V and 5 V

SB

)

f

Power Management: ACPI 3.0 compliant with battery support.

All power testing was done on power supply wiring leading to the Express carrier
board. Although all voltages were measured, only 12 V and 5 VSB are relevant
because they are the only ones used by the Express module. The Idle power level was
measured under Windows XP with no applications running (logon screen). CPU Stress
was measured using Kpower, and Total System Stress was measured under burn-in
conditions.

Intel

®

Atom™ N455, 1.66 GHz

Power State

+12V

+5V

SB

Power Consumption

DOS (idle)

0.55 A

N.S.

6.60 W

Windows XP logon screen (idle)

0.55 A

N.S.

6.60 W

Windows XP CPU Stress (Kpower)

0.99 A

N.S.

11.9 W

Windows XP Total System Stress (BurnIn)

1.02 A

N.S.

12.2 W

S4 Mode (hibernate)

-

0.14 A

0.70 W

S3 Mode (suspend to RAM)

-

0.20 A

1.00 W

Intel

®

Atom™ D425, 1.80 GHz

Power State

+12V

+5V

SB

Power Consumption

DOS (idle)

1.08 A

N.S.

13.0 W

Windows XP logon screen (idle)

1.08 A

N.S.

13.0 W

Windows XP CPU Stress (Kpower)

1.17 A

N.S.

14.0 W

Windows XP Total System Stress (BurnIn)

1.19 A

N.S.

14.3 W

S4 Mode (hibernate)

-

0.15 A

0.75 W

S3 Mode (suspend to RAM)

-

0.20 A

1.00 W

Intel

®

Atom™ D525, 1.80 GHz

Power State

+12V

+5V

SB

Power Consumption

DOS (idle)

0.95 A

N.S.

11.4 W

Windows XP logon screen (idle)

0.95 A

N.S.

11.4 W

Windows XP CPU Stress (Kpower)

1.17 A

N.S.

14.0 W

Windows XP Total System Stress (BurnIn)

1.24 A

N.S.

14.9 W

S4 Mode (hibernate)

-

0.16 A

0.80 W

S3 Mode (suspend to RAM)

-

0.19 A

0.95 W

CMOS Battery Power Consumption

Current (+3V)

Power

4.1 μA

0.000014 W

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