De/repinning 23 pin Motherboard Power Supply

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I have a non-modular PSU and the cables are too long. Does anyone have any tips for shortening the cables and making sure every single one goes back in the right place?

I've got myself a set of keys for the job too, any tips on using them?

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Thanks
 
So my best tip for doing anything is take pictures before you start and be methodical, number things go slow and steady, I have made modular cables, shortened cables by both chopping and soldering, and chopping and crimping.

First is getting the tool down the sides of the crimped ATX pin from the opposite end of the wire, without getting them inside the pin, it is tough, be patient and they do pop out with no effort at all, if you're having to heave on them the side parts aren't depressed on the pin. see here

If you have a crimping tool and parts, simply pop out one wire, cut the wire to length (make sure you factor in the length of the pin / socket in your cut, 2 cm too long is retrievable 2 cm too short is not), strip, crimp a new connector on and reinsert into the ATX connector (listen for the satisfying click that lets you know it has seated properly), repeat (you can use a new ATX connector and just put it in the same orientation as the one you are shortening, chop without popping out the pin, crimp and place in the new one). Guaranteed to get them all in the right place and you get a really quick idea of whether the length was right. Loads of great crimping how-to videos on YouTube my personal favourite is this guy

If chopping and soldering (no need for the removal tool) it gets a bit messy going one at a time, it means getting all the other wires out of the way and so a helping hands is well recommended, heat shrinking is also a great idea but this is beginning to build in a lot of tools and costs that you might be trying to avoid, insulation tape will do a good job too, just less neat, when deciding where to solder in a wire do think about where the soldering will sit as it will be less flexible than the rest of the wire, see that video above
 
That is excellent advice, thank you.

The existing block isn't very good, it would be easier to transfer one wire at a time from one block to another anyway. I'm going to look for one now.
 
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I have cable ties, heat shrink and some of the webby stuff (large) but not sure what size to get for all the motherboard pins for case LEDs and buttons?

Also, I think I have all the other tools I need to?

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If those aren't quite right, is this a match? Cold-pressed Terminal Wire Cable Crimping Pliers Spring Terminal Crimping Tool for Dupont PH2.0 XH2.54 KF2510 JST Molex D-SUB Terminal
 
Thanks Esat, can you please allow me to send you a PM? I have a product link I would like you to check that isn't from here. It won't let me send you a PM at the moment.
 
If you can't see the inside of your PC, you could always cut the cables in the middle, shorten them and use in-line crimps to rejoin them together.
It's not ideal as the crimps add volume and you would need to stagger the positions of the crimps otherwise they would form a massive bunch in the middle of the cable.

If you don't have the crimping tools, but you can solder, you could always shorten and resolder the cables within the PSU.
 
If you can't see the inside of your PC, you could always cut the cables in the middle, shorten them and use in-line crimps to rejoin them together.
It's not ideal as the crimps add volume and you would need to stagger the positions of the crimps otherwise they would form a massive bunch in the middle of the cable.

If you don't have the crimping tools, but you can solder, you could always shorten and resolder the cables within the PSU.

Thanks Paul.
 
Thanks Paul.
Shortening and re-soldering the cables within the PSU would be best as it's less joins and less electrical resistance - plus if you have a side window and can see inside your PC when it is running, it wouldn't be unsightly (unlike crimps in the middle of the cable).
 
I have the tools to recrimp and a new 24 pin connector so it's best to deal with each cable one at a time and place them into the new connector block to avoid putting the wrong cable in the wrong place.

I agree with you about the other easier cables though.
 
I have the tools to recrimp and a new 24 pin connector so it's best to deal with each cable one at a time and place them into the new connector block to avoid putting the wrong cable in the wrong place.

I agree with you about the other easier cables though.
If you have the capability to shorten and re-crimp the 24-pin connector - that is just as good as soldering inside the PSU as it's keeping the joins to a minimum.
 
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