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Fujitsu S900: PCIe 


 


 

 



PCIe

The S900 has what looks like a PCIe x1 slot. However this is actually a proprietary connector that they use to provide PCIe x2 functionality. The pinouts are shown below. You don't have to look past pin A3 to see that a standard card will never work.

PinStandardS900
A1PRSNT#1Hot plug detect+12V
A2+12V+12V power+12V
A3+12V+12V powerGND
A4GNDGroundGND
A5JTAG2TCKRx Data (1)-
A6JTAG3TDIRx Data (1)+
A7JTAG4TDOGND
A8JTAG5TMSGND
A9+3.3V+3.3V powerTx Data (1)-
A10+3.3V+3.3V powerTx Data (1)+
A11PWRGDPower GoodGND
A12GNDGroundGND
A13REFCLK+Reference ClockClock+
A14REFCLK-Reference ClockClock-
A15GNDGroundGND
A16HSI+(0)Receiver Lane 0Rx DAta (0)+
A17HSI-(0)Receiver Lane 0Rx Data (0)-
A18GNDGroundGND
 
PinStandardS900
B1+12V+12V power+12V
B2+12V+12V power+12V
B3+12V+12V power+12V
B4GNDGroundGND
B5SMCLKSMBus clocknc
B6SMDATSMBus datanc
B7GNDGroundGND
B8+3.3V+3.3V powernc
B9JTAG1+TRST#nc
B103.3Vaux3.3V powernc
B11WAKE#Link ReactivationWAKE low
B12RSVDReservedReset low
B13GNDGroundGND
B14HSO+(0)-Tx Lane 0Tx+ (0)
B15HSO+(0)Tx Lane 0Tx- (0)
B16GNDGroundGND
B17PRSNT#2Hotplug detectnc
B18GNDGroundGND

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Any comments? email me. Added May 2019