Computer Hardware User Manual

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