Fujitsu D1961 technical manual Annex, Electrical Properties, Loadability for connections and fuses

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 port	Not specified
			Mouse port	Not specified
			Gameport	Not specified
			VGA port	Minimum 50 mA
	2	2000 mA	USB port A	500 mA
			USB port B	500 mA
			USB port C	500 mA
			USB port D	500 mA
	3	1500 mA / 2000 mA (optional)	USB port E	500 mA
			USB port F	500 mA
			USB port G	500 mA
			USB port H	500 mA

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	Current typ.
		difference
ATX12V power supply	+12 V	±5 %	8 A
ATX12V power supply	-12 V	±10 %	0.05 A
ATX12V power supply	+5.0 V	±5 %	12 A
ATX12V power supply	+3.3 V	±5 %	3.7 A
Standby voltage of power	+5.0 V	±5 %	2.0 A
supply unit

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.

28 - English A26361-D1961-Z120-1-7419, edition 2