Anyone modded thier 20pin PSU to 24pin?

[Poki]

I have a MB OTW that needs a 24 pin PSU. I was thinking that my Fortron 530 should have no problem running it if were to reroute a 3.3/5/12v and ground to the motherboard side. I'm sure someone out there has done this as it isn't very hard at all and cheaper than a new PSU.
My PSU has an extra AT header with two 3.3v lines, one 5v line and three grounds. I'll use a 12v line off a molex and the 3.3/5/ground off the AT header.
I guess my main question is that there isn't anything special about these new power feeds is there? Just plain old supply feeds after boot right?

[thephenom]

u can just plug the 20-pin into the 24-pin socket, it'll work first. Just line it up correctly.

[Nubius]

I've known quite a few people who do that, but IMO, it's better safe than sorry and just get a 20pin to 24-pin convertor.

[craig588]

There is no point in doing that, it will just be spitting the existing lines from the 20 pin connector. To make a propor adapter you need to solder new lines to the extra 4 pins directly from the PSU.

[Poki]

It seems from what i've read(and been told via PM) that it is indeed only supply feed lines that connect to the four *new* pins. I'll have a go with using the standard 20 pin connector but when i'm ready to increase the vdimm i'll go ahead with the mod to add the extra 3.3/5/12v/comm connectors to the motherboard. There really isn't much to it other than making sure you're hooking up the right lines to the right pins.
I'm suprised we haven't seen many people do this.... There's plenty of PSU's out there that have the umph to do it.

[Poki]

There is no point in doing that, it will just be spitting the existing lines from the 20 pin connector. To make a propor adapter you need to solder new lines to the extra 4 pins directly from the PSU.

I'm actually going to use the existing wiring not make an adapter.

[craig588]

That is pointless, the point of the extra pins is to have extra wires for more current. If you can draw 40 amps from a wire, and you split that wire into 2 halfway down it can still only draw 40 amps from its start, even if its end is 40 amps*2. (The 40 is made up)

EDIT: I didn't read the topic post, only the last one and responded to the last post about buying an adapter for 20->24 pins. Poki, your idea is good.

[reject]

wat will u use as a plug? to make it clean you could get a 24 pin block and then crimp on connectors on the extra wires, but that would be boring and the atx removal tool is hard to come by. soldering to the mobo would be bad if u had to move it or rearrange wires.

[Poki]

I have a few of the proper connector terminals which i'll crimp and solder to the wires. As far adding or using the proper plug, i'm just going to use some thick shrink tubing as an insulator for the connectors.
I think for the time being i'll have a little pinout diagram taped to the PSU for reference. It's unlikely that i'm going to be removing the motherboard or PSU from it's home in the next 6 months or so. If i do come up with either a 24pin plug or the extra 4pin plug i use it but i don't see my temporary solution being a problem for my stationary computer.

[HighTest]

As I understand it, the adapters are not a complete waste as even though no additional wires from the PSU are actually connected, the wires existing are still able to support more current draw than the copper traces on the motherboard. The extra connections are to help provide designs where the traces are less likely to be toasted during the use of a high power proc. Look at those P4 wattage requirements. AMD 64's are currently less, but many motherboard makers are starting to use the 24 pin connector as a standard as supplies will start to transition to the 24 pin version.

[nebuchanezzar]

FWIW I just got a 24 pin PSU with the 20 pin adaptor and it turns those extra 4 pins into sense wires for the 3.3, 5, 12,and ground as far as I can tell.

[Ubermann]

Is it possible to solder on the back on the MB those 4 pins to correct value from the other 20 points back of the MB ?

[babyelf]

anyone used the modded 24pin on the DFI?

[WiCKeD]

Sorry to bump an old thread, but those extra wires are needed, because they don't just give the board more current, there purpose is to supply power to the PCI-E slot past ~75w. If you have a 6600GT or X800XL with no external power connector, you may run into power shortages.

I think what Poki is talking about is all you need to do, I found this thread via Yahoo! trying to verify that's it.

[Ubermann]

Can someone tell me what pin should get what volt ?
I cant afford new PSU.
Pictures or something would be nice.

[ChongL]

im using a 20 pin on the DFI and it runs perfectly fine

[joot]

So using a 20 pin PSU on a 24 pin motherboard is okay or what?

[tennvols_69]

running a 20 psu on any DFI NF4 board is highly not recommended. as some has said it is used to carry more amperage to the motherboard but with real 24pin psu you also have 2 12v rails versus the norm which is one. by modding it you risk causing damage to your board. this holds esp. true with high end graphics cards and using the 5V dram option. if your too cheap to spend the money required to correctly opperate the motherboard the best way is to use a 20 pin only. while this can cause instability this will probally save your hard ware, plus some have no problems running it this way but you can bet if you use a convertor you will kill something sometime. mostlikely will be the psu but with that you risk damaging other componets connected to it.

[brandinb]

hey good idea poki that would be just as good as a 24 pin!
i bet most manufacturers just do basically that anyways its just more wires
i would cut off a 4 pin 12v connector off a broken/old psu and mod it into a molex and the p5 connector or which ever ones has 3.3v and that will work perfectly
plus then you can still use the psu on 20 pin mobo just unplug the 4 pin you add
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[dippyskoodlez]

There is no point in doing that, it will just be spitting the existing lines from the 20 pin connector. To make a propor adapter you need to solder new lines to the extra 4 pins directly from the PSU.

been using it for several months on my DFI NF4 and antec SL350. works like a champ.

without mod: windows fails to install, but is stable when overclocked. 5v mod wouldnt boot at first for me, but I eventually got it to work ok with it.
with mod: 100% problem free.

made it myself

yea, I know.. old thread, but its of use.