Two motherboards with single PSU

Ivan Dimitrov

Member
Jul 10, 2016
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Hi, I have a X11SPI-TF MB as "hyper-converged" server but I would like to separate the storage part in as separate system. I would like to power both systems with the same PSU in order to reduce fan noise and clutter in the case.
I am looking at Supermicro Seon-D platform with 10GB ethernet. Those boards have the possibility of direct 12v power (JP1) but the connector is not standard.
I am wondering if I will be able to make myself an adapter from PJ1 to regular ATX 4x CPU connector. In the manual for example for Supermicro X10SDV-4C-TLN2F the pin out is given as containing only 12v and GND.
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In a STH forum thread there is mentioning of an official adapter CBL-PWEX-1063 but it has additional pins like +5V standby, PS_ON and PWR_GOOD. Do you know if there are multiple variants of this 12v connector?

Alternative method for powering the two systems with the same psu will be to use Y slitter for the 24pin PSU cable but this sounds more risky.

So any other ideas how to power two systems with one PSU? Have you experimented with the auxiliary 12v power of Supermicro motherboards?
Thanks.
 

RolloZ170

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Apr 24, 2016
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In a STH forum thread there is mentioning of an official adapter CBL-PWEX-1063 but it has additional pins like +5V standby, PS_ON and PWR_GOOD. Do you know if there are multiple variants of this 12v connector?
that is ATX4P not for CPU. it is the replacement for ATX24P, but both need additional 8 or 4 Pin +12V connector.
the Supermicro X10SDV-4C-TLN2F is very different from X11SDV-4C-TLN2F i.e.
X10SDV-4C-TLN2F uses ATX24P + 4P +12V (normal style)
X11SDV-4C-TLN2F uses a 8P +12V and a tiny proprietäry ATX4P (CBL-PWEX-1063)

I am wondering if I will be able to make myself an adapter from PJ1 to regular ATX 4x CPU connector. In the manual for example for Supermicro X10SDV-4C-TLN2F the pin out is given as containing only 12v and GND.
only X10SDV-4C-TLN2F
not for X11SDV-4C-TLN2F
 
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RolloZ170

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Apr 24, 2016
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Thanks for the clarification. The server is anyway up 24/7 so this will not be a problem with the adaptor.
X10SDV-4C-TLN2F
Note 2: Do not use the 4-pin DC power at PJ1 when the 24-pin ATX Power at JPW1 is connected to the power supply. Do not plug in both PJ1 and JPW1 at the same time.

allways read the matching manual.
the circuit is at X11 different.