While sleeving 24-pin, the wire stickers fell off!

[eponymous]

Ok, so I now have 23 ATX lines without any numbering on them but I can see the colours of the lines.

Is it ok to follow this diagram to put them back in the right place?:



Say if I have two red wires, surely they're both 5v and it doesn't matter where they go?

The only thing I'm confused about is the three cables that have two wires to one pin. I have a feeling these are for larger current draw but I'm not sure.

I do have detailed photo's of the connector before I took it apart so I can see where these used to go fairly easily.

Also I have a PSU tester.

Am I missing anything?

Thanks guys, I hope I'm not totally screwed now

[NaeKuh]

if its 5VSB then it wont matter where it goes.

The last thing u want to do tho is put a 12VSB instead of a 5VSB. or a 3.3vsb inside the 5vsb.

If worse comes to worse, pin it all back up and throw it in the psu tester.

It will test each rail to see if its correct.

[eponymous]

if its 5VSB then it wont matter where it goes.

The last thing u want to do tho is put a 12VSB instead of a 5VSB. or a 3.3vsb inside the 5vsb.

If worse comes to worse, pin it all back up and throw it in the psu tester.

It will test each rail to see if its correct.

Thanks for your fast reply.

Luckily I can see the colours on the wires so I won't mistake a red 5V with a yellow 12v, but I thought there might have been other gotchas.

I'm not sure why people bother labelling the lines individually if they can consult the ATX pinout chart. I feel like I'm really missing something lol.

[NaeKuh]

Thanks for your fast reply.

Luckily I can see the colours on the wires so I won't mistake a red 5V with a yellow 12v, but I thought there might have been other gotchas.

I'm not sure why people bother labelling the lines individually if they can consult the ATX pinout chart. I feel like I'm really missing something lol.

when your psu has multi rails.

The last thing u want is to tie everything on 1 rail when your psu has 3.

[Malik[A]]

I think it's easier to label all wires and put them in right order than searching where which wire should go in

[shazza]

If it helps --- I always just yank out all the pins, then put them back using the chart And yes, using a PSU tester is a good idea. I generally go so far as to test the newly sleeved PSU on another PC first (usually my husband's ).

[NaeKuh]

I generally go so far as to test the newly sleeved PSU on another PC first (usually my husband's ).

oh did u smoke your husband's X2 then?

i thought that was yours?

[eponymous]

when your psu has multi rails.

The last thing u want is to tie everything on 1 rail when your psu has 3.

What do you mean NaeKuh?

[shazza]

oh did u smoke your husband's X2 then?

i thought that was yours?

hehe ... well, that was NOT one of my sleeved PCI-E cables. I used one from another PSU that was not, shall we say, compatible And yes, that was mine - why would I give him a 4870X2?

[NaeKuh]

What do you mean NaeKuh?

Most psu's have multi rails.

the 12V1 12V2 12V3 stuff u see on the labels.

The color for those lines will all be the same color, but if u look inside the psu, they are sourced from different zones.

If you tie up all the yellow on 1 rail and not distribute it out.... you will have problems.

why would I give him a 4870X2?

Because you picked up tri sli 285gtx's no?

LOL... when it comes to buying random toys... i think your almost as bad as i am.
Im just a bit more whorish on the cpu.

[JumpingJack]

The answer to your question is that as long as you match the color to the pin, it does not matter if the new arrangement is different from your old within that color group. The ATX 24 pin supply has 3 main voltages, 3.3 (orange), 5.0 (red), and 12 (yellow) all positive with respect to common (ground). Each derives from their own single rail. The other voltage to make sure you get right is the 5Vsb (standby), this line is always hot when the PSU mains are on, though the computer is powered off. The -5V is almost never used anymore, and I think the most recent revision (I would need to recheck) actually lists it as optional, the other is the -12 V line, don't get that one in the wrong spot either.

A PSU tester is always a good idea, even if the labels never fell off.

[JumpingJack]

What do you mean NaeKuh?

he means that many PSUs have independent 12 volt rails, and you don't want to tie different rails together... this is true because you are not guaranteed that current will be pulled from each one in the right proportion.

However, since the OP was originally questioning how to rewire his 24 pin MB cable, his point is actually moot.

[eponymous]

Most psu's have multi rails.

the 12V1 12V2 12V3 stuff u see on the labels.

The color for those lines will all be the same color, but if u look inside the psu, they are sourced from different zones.

If you tie up all the black on 1 rail and not distribute it out.... you will have problems.



Because you picked up tri sli 285gtx's no?

LOL... when it comes to buying random toys... i think your almost as bad as i am.
Im just a bit more whorish on the cpu.

So using that chart I won't be able to do this properly is that what you mean? I'm not following you :S

[NaeKuh]

However, since the OP was originally questioning how to rewire his 24 pin MB cable, his point is actually moot.

Yup your right.. but im just telling him for future reference..

So using that chart I won't be able to do this properly is that what you mean? I'm not following you :S

no no.. its incase u decide to do more with your psu.

I didnt want to tell you its okey to grab random yellows and tie them together, without telling u the exclusion.

[eponymous]

The answer to your question is that as long as you match the color to the pin, it does not matter if the new arrangement is different from your old within that color group. The ATX 24 pin supply has 3 main voltages, 3.3 (orange), 5.0 (red), and 12 (yellow) all positive with respect to common (ground). Each derives from their own single rail. The other voltage to make sure you get right is the 5Vsb (standby), this line is always hot when the PSU mains are on, though the computer is powered off. The -5V is almost never used anymore, and I think the most recent revision (I would need to recheck) actually lists it as optional, the other is the -12 V line, don't get that one in the wrong spot either.

A PSU tester is always a good idea, even if the labels never fell off.

he means that many PSUs have independent 12 volt rails, and you don't want to tie different rails together... this is true because you are not guaranteed that current will be pulled from each one in the right proportion.

However, since the OP was originally questioning how to rewire his 24 pin MB cable, his point is actually moot.

Thanks.

As I mentioned before though, there are two yellow pins for example. One pin has a single wire going into it and the other yellow pin has two wires coupled together going into it. Now I can only think this was done to allow more current ot be pulled along that pin, so in that respect don't I need to make sure it goes back in exactly the right place?

[eponymous]

Yup your right.. but im just telling him for future reference..



no no.. its incase u decide to do more with your psu.

I didnt want to tell you its okey to grab random yellows and tie them together, without telling u the exclusion.

Thanks NaeKuh

[JumpingJack]

Thanks.

As I mentioned before though, there are two yellow pins for example. One pin has a single wire going into it and the other yellow pin has two wires coupled together going into it. Now I can only think this was done to allow more current ot be pulled along that pin, so in that respect don't I need to make sure it goes back in exactly the right place?

The reason for multiple wires in a 24 pin connector is because there is a certain ATX specification for current for those voltage supplies, but 18 gauge wire can only carry some limited max less than those rated currents, thus 24 pins.

Each color, as it represents that voltage, are all from the same voltage supply. However, in this case you thinking correctly -- you can always look up your PSU on Newegg or somewhere else and take their product picture to get that straightened out.

Jack

[eponymous]

The reason for multiple wires in a 24 pin connector is because there is a certain ATX specification for current for those voltage supplies, but 18 gauge wire can only carry some limited max less than those rated currents, thus 24 pins.

Each color, as it represents that voltage, are all from the same voltage supply. However, in this case you thinking correctly -- you can always look up your PSU on Newegg or somewhere else and take their product picture to get that straightened out.

Jack

Cheers Jack

There are about three wires doubled up like that, one for each voltage rail.

Luckily I took a close up photo of the connector (back and front) before I took it apart. Phew, :P

[shazza]

Luckily I took a close up photo of the connector (back and front) before I took it apart. Phew, :P

Always a good idea.

I'd just make sure the colors match according to the pinout diagram you have, and also put the doubled up wires into the same position they were in originally. You should be good to go.

[eponymous]

Always a good idea.

I'd just make sure the colors match according to the pinout diagram you have, and also put the doubled up wires into the same position they were in originally. You should be good to go.

Cheers.

[JumpingJack]

Cheers Jack

There are about three wires doubled up like that, one for each voltage rail.

Luckily I took a close up photo of the connector (back and front) before I took it apart. Phew, :P

Your welcome, glad I could of at least some help -- and photos are good. I had a situation recently where I had to study this in some detail.

Xbitlabs did an article here:
http://www.xbitlabs.com/articles/coo...m-wattage.html

They did such a nice job building the contraption that I built one myself, and wrote about it here:
http://www.xcpus.com/reviews/181-Bui...er-Page-1.aspx

To get all the voltages, I had to make sure that the 24 pin lines were all indeed the same for the different lines, now your PSU may be different I don't know so it is a good idea to double check.

Jack

[dylskee]

Cheers Jack Luckily I took a close up photo of the connector (back and front) before I took it apart. Phew, :P

That's what I did also, and I knew it would come in handy.

[eponymous]

To get all the voltages, I had to make sure that the 24 pin lines were all indeed the same for the different lines, now your PSU may be different I don't know so it is a good idea to double check.

Jack

Sorry what's this you mean? It's nearly 3am lol and my mind is dead :P

[JumpingJack]

Sorry what's this you mean? It's nearly 3am lol and my mind is dead :P

What I mean is that I double checked to makes sure they did not split the rails. I opened the PSU (you don't need to do this) and triple checked. I also made sure each line I was working with read the same voltage.

It's not something to worry about.

[aka_GK]

eponymous
just few simple rules I made for myself:
1) Don't be in a rush
2) Don't do it in the late night
3) Take some masking tape and make the accurate labels for each wire, then double check them according to connector reference.
4) Take the photos of each step
5) Try on old PSU first - your new PSU do not want unnecessary pin ins and outs
6) Double check the labels and numbers on the connector before putting pins back
7) Cut the heatshrinks right

You will be fine