ASUS KMPA-u16

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JUGS

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Nov 6, 2023
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I got this board only, not the server and it seems to come from a server named RS520A-E11-RS24U from Asus, I think this is not as proprietary as Dell but I just want to make sure if anyone has this board and if it works fine with a regular ATX PSU.

 

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RolloZ170

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Apr 24, 2016
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compared with KRPA-U16 its all same pinout.
this Motherboard supports ATX2.0 PSU or later version.
KRPA-u16.jpg with KRPA-U16
 

JUGS

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Nov 6, 2023
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what confused me is that it mentions connection to the power board, KRPA-U16 does not do that. it seems like a regular commonly used connector.
 

RolloZ170

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what confused me is that it mentions connection to the power board, KRPA-U16 does not do that. it seems like a regular commonly used connector.
if you want redundant PSU service you need power distr.unit even with the KEPA-U16.
KMPA-U16 is OEM. normaly never used with ATX PSU.
remember these are server motherboards not made for PC Cases. you need continious Air flow over all parts.
 
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Deleted member 100688

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With the key on top and from left to right, PWM | Speed | +12V | GND is the default pinout for 3/4-pin fans. That's why Asrock has a gap in the key on the header so that you can connect standard 3/4-pin fans.

Asus could have done the same thing, but apparently they didn't. With pins 5 and 6 on their connectors being an additional GND and +12V, is looks like these headers are intended for higher power fans, which makes sense in a server. You'd have to cut the key indeed, similar to how Asrock did it, and then you should be able to use standard 3/4-pin fans.
 
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JUGS

Member
Nov 6, 2023
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With the key on top and from left to right, PWM | Speed | +12V | GND is the default pinout for 3/4-pin fans. That's why Asrock has a gap in the key on the header so that you can connect standard 3/4-pin fans.

Asus could have done the same thing, but apparently they didn't. With pins 5 and 6 on their connectors being an additional GND and +12V, is looks like these headers are intended for higher power fans, which makes sense in a server. You'd have to cut the key indeed, similar to how Asrock did it, and then you should be able to use standard 3/4-pin fans.
Thanks, I'm really glad that I will be able to use regular fans with this board.
 

RolloZ170

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Apr 24, 2016
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ASRock just has a sensor to detect a FAN present like HP/Dell etc.
there are 6 to 4 Pin FAN Adapters, if not fit you can change to your needs thought.