20-pin ATX + Supermicro PJ1 port?

[awedio]

Which one is it, yes. no?
@zac1 @RolloZ170

 

[zac1]

I distinctly remember it being an either/or proposition... I used PJ1 and it worked.

 

[RolloZ170]

Which one is it, yes. no?
@zac1 @RolloZ170

which motherboard do you have exactly ?

 

[RolloZ170]

I distinctly remember it being an either/or proposition... I used PJ1 and it worked.

this is the case at boards with 4pin PJ1(not propr.) and 24pin JPW1

 

[awedio]

which motherboard do you have exactly ?

Supermicro M11SDV-8C-LN4F

 

[RolloZ170]

Supermicro M11SDV-8C-LN4F

Note: The M11SDV-4C/4CT/8C/8CT/8C+-LN4F motherboard supports either 12V DC in power input or ATX power input. The 12V DC IN power input requires an 8-pin 12V DC IN connection to the JPV1 header. ATX power input requires an 8-pin 12V connections to JPV1 header and PJ1 a 4-pin power connector of an ATX power supply by power cable (24-pin ATX to 4-pin power cable for PJ1, Supermicro P/N: CBL-PWEX-1063). PJ1 allows motherboard control of the 5VStby, power on, power good, and ground signals from the ATX power supply.

means only JPV1
or JPV1 + PJ1

 

[zac1]

Ah, I got confused with X10SDV series, I think...

https://forums.servethehome.com/index.php?threads/supermicro-m11sdv-8c-ln4f.24962/

 

[awedio]

But the OP @altano uses the M11 board?

 

[awedio]

In a CSE-505 (1U shallow chassis) with PWS-203-1H power supply, how do you "split" the power cable to power up this mb?

 

[zac1]

But the OP @altano uses the M11 board?

So did this poster here—in addition to ATX via PJ1, he had to use 4-pin EPS to get the board to post.

Wow.. I feel pretty dumb. It turns out that I only had the 4 pin power attached to the motherboard. There was also an 8pin power connector. My PSU didn't have an 8pin output but it did have two 4 pin outputs. I couldn't connect both to the motherboard as the connector wouldn't allow them both but I was able to connect one of the 4pin connectors to the far right 4pins (of the 8pin plug). Once I did that I was able to see video though the KVM and out the video port.

After all that trial and error I did with my first motherboard and the RMA I went through thinking it was defective, I finally got this working!

I was under the impression that the power to the motherboard was one connector (4pin) OR the other... (8pin).. but not a combination of both! I think in my case the motherboard didn't have enough power to POST and that's why only the BMC was working.

Live and learn... I'm still glad I found these forums. Looking forward to working with this motherboard!

Note that here in the STH review of AS-E301-9D-8CN4 with that board, only the 8-pin connector is used for DC power.

 

[awedio]

Sounds like @altano only used PJ1?
Let's see if he confirms?

 

[awedio]

Looking at the AS-5019-FTN4 parts list, the only power cable shown is - CBL-PWEX-1066 : 5019D-FTN4 | Embedded | A+ Servers | Products | Super Micro Computer, Inc.

 

[awedio]

Maybe they all used one of this? 8-Pin PCIe to Molex Power Cable

 

[zac1]

Looking at the AS-5019-FTN4 parts list, the only power cable shown is - CBL-PWEX-1066 : 5019D-FTN4 | Embedded | A+ Servers | Products | Super Micro Computer, Inc.

Check this photo from the STH review.

 

[awedio]

The STH review only mentions a "jumper fixture" (regarding the power supply ATX connector)

 

[zac1]

The STH review only mentions a "jumper fixture" (regarding the power supply ATX connector)

Right, but zooming in on the photo, one can see a black and yellow cable connected:

 

[awedio]

Riddle solved!

 

[awedio]

The 8 pin was just "buried" in there!!

 

[awedio]

...Think the only option is to source a CBL-PWEX-1063 equivalent cable with a longer cable. Has anyone else found a good solution for this?

This is the question that needs an answer!

 

[RolloZ170]

--

Sounds like @altano only used PJ1?
Let's see if he confirms?

no, PJ1 AND the 8pin.
the original question was if he can use a 20pin ATX instead of 24 pin.
if you only connect the 8 pin with ATX PSU , the PSU will not power on. you need the add. signals supplied to PJ1.
with only PJ1 the BMC starts working. but there is no +12V for the CPU etc.