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Annex, Electrical properties, Loadability for connections and fuses – FUJITSU answers^2 D1740 User Manual

Page 35: Mainboard current requirement, Ee "electrical properties, Led "electrical properties")

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Electrical

Properties

Annex

Electrical Properties

Loadability for connections and fuses

i

Make sure that the connected devices do not overload the connections.

Fuse No.

Fuse

Connection

Maximum loadability

1

750 mA

Keyboard

Not specified

Mouse

Not

specified

VGA connector

Minimum 50 mA

2

1500 mA

USB port A
USB port B

500 mA

3

1500 mA

USB port C
USB port D

500 mA

4

1500 mA

USB port E

USB port F

500 mA

(gray marked fuses are optional)
The fuses on this mainboard can be used several times (polyfuses). Shortly after the error state has
been eliminated, the fuses reset to the original state.

Mainboard current requirement

You require a Pentium4 power supply nit as per the ATX12V specification for this mainboard. If you
do not have a PC from Fujitsu Siemens Computers, make sure that the power supply unit provides
the required amperages.

Resource

Voltage

Maximum
difference

Maximum current

ATX12V power supply

+12 V

±5 %

8 A

ATX12V power supply

-12 V

±10 %

350 mA

ATX12V power supply

+5,0 V

±5 %

1 A

ATX12V power supply

+3,3 V

±5 %

5 A

Standby voltage of power supply

unit

+5,0 V SB

±5 %

2 A

The specifications apply to the onboard components and represent the least favourable case. In
addition, at least 350 mA is required for PCI on 3.3 V, and 500 mA per connected device for USB on
5 V.

A26361-D1740-Z120-1-6319, Edition: 3

English - 25