Fujitsu Siemens Computers D1808, Техническое руководство

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Board Installation
Installing the Power Supply
There are three power connectors on this motherboard:
24-pin P1 baseboard power connector (according SSI 3.51 spec)
8-pin processor power connector (according SSI 3.51 spec)
4-pin additional baseboard power connector (2xGND, 2x+12V)
The used power supply is a split plane PSU with four +12V-rails and delivers 700W continuous
power. One rail is for each processor, one for systemboard and one for peripherals (e.g. HHDs, add.
6-pin graphics connector).
The power supply has:
one 24-pin molex-type connector for the baseboard (P1)
one 8-pin molex-type connector for the processor power (P13)
one 4-pin molex-type additional baseboard power connector (P20) – two yellow wires and
two black wires (only for use with this workstation)
one 4-pin molex-type connector (P19) – one yellow wire, one red wire and two black wires
(only for use with a server from Fujitsu Siemens Computers)
two 6-pin connectors for graphic adapters (P10, P11)
several HDD-, floppy- and SATA power connectors
Two onboard switching voltage regulators that are sourced by se12V power rails provide
each CPU’s power. This +12V CPU power source is from the onboard 8-pin square connector. The
+12V power on the 24-pin baseboard power connector and on the 4-pin additional baseboard power
connector is for system board and separated from CPU +12V regulator power source. Therefore, the
CPU will not be powered if you do not connect the 8-pin square 12V power connector.
!
You must unplug the power supply before plugging in the 24-pin and 8-pin power cables to
motherboard connectors.
!
To avoid system damage take care of using connector P20 in this workstation.
The mainboard requires P20 with two black and two yellow wires as additional
power connector.
Using connector P19 in this workstation will damage the mainboard
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