Fujitsu D1931 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	Not specified
			Mouse	Not specified
			VGA port	Not specified
	2	2000 mA	USB port 1	500 mA
			USB port 2	500 mA
			USB port 3	500 mA
			USB port 4	500 mA
	3	2000 mA	USB port 5	500 mA
			USB port 6	500 mA
			USB port 7	500 mA
			USB port 8	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 unit according to the BTX or ATX12V specification (BTX: 24-

pin + 4-pin connection; ATX12V: 20-pin + 4-pin connection) for this mainboard.

If you use an ATX power supply, a graphics card in the PCI Express x16 slot will only be supplied with 25 W of power. For high-end graphics cards that require a power supply of up to 75 W, a BTX power supply unit is required.

If you do not have a PC from Fujitsu Siemens Computer, make sure that the power supply unit provides the required amperages.

Resource	Voltage	Maximum	Maximum current
		difference
BTX/ATX12V power supply	+12 V	±5 %
BTX/ATX12V power supply	-12 V	±10 %
BTX/ATX12V power supply	+5,0 V	±5 %
BTX/ATX12V power supply	+3,3 V	±5 %
Standby voltage of power	+5,0 V	±5 %	2 A
supply unit
A26361-D1931-Z120-1-7419, Edition 1				English - 31