Acer Veriton M Desktop - VM4660G-I3810H PSU 24-pin to MOBO 6-pin conversion

It is tough to tell on those, they don't give the actual pinout for their adapters... Here is what Acer uses, and it's pretty standard for the 12VO designs, except for those few that merge both connectors into a single 10 pin, or those gaming rigs that use a second ATX_12V four pin to handle the extra load for GPUs:

Image: https://us.v-cdn.net/6029997/uploads/editor/rs/663sx6bvxpxn.png

Note that you need a PSU that has a single rail for the 12V output and that that 12V output needs to have enough current to drive your power needs. Also be aware that some older PSU designs expect there to be a load on the +5V rail, so stay away from those since you won't be using it at all.

@billsey

Thanks.

So which way is the pin layout:

Image: https://us.v-cdn.net/6029997/uploads/editor/8v/aa3i27xn6fde.jpg

And do you know why there's an empty pin? Do I need to care about that?

Also, the label on the case says "6-pin ATX Power". Do you know if that's a standard? Can I buy any 24-pin to 6-pin ATX adapter and be fine?

Image: https://us.v-cdn.net/6029997/uploads/editor/s7/8xhcvdxdw8kg.jpg

You can use an ohmmeter to find your ground connections.
I think pin 1 is where the key is located on your MB picture of the power connector.
Newegg shows a few for ATX
https://www.newegg.com/p/pl?d=atx+PSU+24-pin+to+MOBO+6-pin+conversion

@Larryodie

Thanks. Are we sure those newegg adapters will work for Acer? They all say Dell/HP.
Is that 6-pin ATX a standard layout?

The 6pin 12VO is standard, but ATX supplies also use a six pin that has only 12V x3 and Gnd x3, which is quite different.

@billsey

So will ANY 24-pin to 6-pin adapter work? Even if it says it's for HP/Dell/etc?

Also, which way are the pins numbered?

Thank you

Image: https://us.v-cdn.net/6029997/uploads/editor/96/t1f85d9iyi98.jpg

The best I could get blowing up the illustration in the SG is this:

Image: https://us.v-cdn.net/6029997/uploads/editor/wy/rbm9yhab643w.png

Notice the shape of the holes in the socket. Some have a rounded side to the plug can only go in one way. Next look at the colors of the wires going to the socket from the stock power supply. There should be two yellow wires (+12V), three black wires (Ground) and one that's likely purple (PS_On).

@billsey
@Larryodie

First, thank you both for responding and trying to help me.

Second, I feel like my questions aren't being directly or clearly answered and that's frustrating. I could also be misunderstanding what you're trying to tell me. I think I need to ask them in a better way.

Let's say I'm going to make my own adapter and splice everything together myself. So I need to know which wires from the 24-pin PSU connector go to which holes in the 6-pin connector.

QUESTION #1

How does this chart:

Image: https://us.v-cdn.net/6029997/uploads/editor/3v/qo7k7ply8gr9.png

Transfer to this plug:

Image: https://us.v-cdn.net/6029997/uploads/editor/89/w74ptxz0ed88.png

Is it numbered like on the left or the right? Or is it numbered in a different way? Which pin is pin #1?
@billsey I get that the connector can only be plugged in one way. I'm trying to understand which orientation it's numbered so I can make sure the right wires are going to the correct pins. Again, pretend I'm going to make my own adapter.
@Larryodie what's the 'key' you mentioned on the mobo?

QUESTION #2

In the photo of my 6-pin connector above, one of the pins is empty (bottom right) - there is no wire going to it. It is a 6-pin connector with only 5 attached wires.
What is the open/empty pin and is it important?
All of the 24-pin to 6-pin adapters online have all 6 pins full and connected to wires.

Thank you for your patience with me.

In Billsey's latest picture, I think that the rib would be pin 1. If you use an ohmmeter, it'll show you which pins are ground on the MBO.

How about Jagger's post on this thread. It looks messy but it worked on his unit. Just tape them good or use shrink thermal if you have it. Billsey says to tie down the Pwr-on
https://community.acer.com/en/discussion/614670/tc-895-eb11-6-pin-power-cable-conector/p1

@Larryodie

What do you mean by the 'rib'? In Billsey's image (edited below) which one is the 'rib' - A, B, C, D, E, or F?

Image: https://us.v-cdn.net/6029997/uploads/editor/ul/gyxobqmhv149.png

I did see that other thread by @jagger but I don't think I ever saw a 'SUCCESS' follow-up post so I wasn't sure if it ever worked. I'll re-read it closely later tonight.

Thanks!

Rib guide next to C:
They are lots of 24 to 6 pin cables on Amazon. I searched the questions and saw one that said it'd worked OK on an Acer TC-1660.

https://www.amazon.com/COMeap-Power-Adapter-Motherboard-13-3-inch/dp/B08M5BZ6P8/ref=sr_1_16_sspa?crid=JMS9QEGSZCV3&keywords=24+pin+to+6+pin+acer&qid=1659628376&sprefix=,aps,52&sr=8-16-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExTEtCUVVMRDYwMTBMJmVuY3J5cHRlZElkPUEwNjk4OTM0R0wyMU1XUFVGSlZDJmVuY3J5cHRlZEFkSWQ9QTAzNjUxOTYzNFRKVFI5REsxNVpXJndpZGdldE5hbWU9c3BfbXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==

https://www.amazon.com/COMeap-Power-Adapter-Motherboard-13-3-inch/product-reviews/B08M5BZ6P8/ref=cm_cr_arp_d_viewopt_kywd?ie=UTF8&reviewerType=all_reviews&pageNumber=1&filterByKeyword=acer