WTX to ATX conversion.

[nihili]

An itchy trigger finger on a "too good to be true" deal in Newegg's refurb section has landed me with a WTX power supply. Specifically, it's an NMB Technologies it002a430wsw (http://www.nmbtech.com/pdf/powersupplies/it002a430wsw.pdf).

I'm interested in trying to convert this to an ATX supply. But I'm no electronics guru, so I'd like some guidance on how to do it, or whether it's even possible. If it can be done, it should be a great PSU. I'm just not sure where to start.

nihili

PS If anyone would really like me to list this in the classifieds instead, let me know.

[Captain Slug]

WTX has a different pinout and has 24 pins, instead of the ATX standard of 20 connection. Most power supply manufacturers make 24-to-20/WTX-to-ATX adapters.

So if you can find one, you're all set.

Edit: mistyped some very important numbers, my bad.

[nihili]

Originally posted by Captain Slug
WTX has a different pinout and has 24 pins, instead of the ATX standard of 22 connection. Most power supply manufacturers make 24-to-22/WTX-to-ATX adapters.

So if you can find one, you're all set.

I've been searching the net and haven't found one. Do you have a clue where I might start?

nihili

[danorthface]

can't you just pull all the cables out of the motherboard connector, and rearrange them like a regular ATX?

[Captain Slug]

Originally posted by danorthface
can't you just pull all the cables out of the motherboard connector, and rearrange them like a regular ATX?

Yeah, THAT would be fun...

I've seen WTX convertor cables but I just need to remember which manufacturer made them... I'm searching a bunch of them now.

[nihili]

well there's some strangeness. For example, there's no -5v line. There are two different +5 lines, two different +12 lines, and it doesn't seem to have the same sensing mechanism that the ATX supplies do. I'm guessing that there's someway to convert it. But since I'm not an electronics expert, I was hoping to get some help.

nihili

[nihili]

Well I've searched all the PSU manufacturers I can find and also tried various google searches. If anyone finds an adapter or has any helpful information or suggestions about conversion, I'd be much obliged.

nihili

[Captain Slug]

I feel exceptionally dumb right now. I just found one.

Someone in another thread on this topic was able to order one directly from Enhance USA for only $5 plus shipping.

Just give their sales department an e-mail at sales@enhanceusa.com (mailto:sales@enhanceusa.com)

Or give the sales department a call on monday, 1-562-677-1268

Just ask for a 24-pin to 20-pin adapter, or a WTX to ATX adapter.

[nihili]

Thanks. I've sent some email to NMB asking if they make such an adapter. I'll get in touch with them next week if that doesn't work. Failing that, I'll try Enhance.

THanks again,

nihili

[nihili]

Someone (PCphreak) in another thread has suggested that I run the PSU in parallel with my current one.


That PSU would make a great parallel addition to an existing ATX PSU for the use in a dual system...just wire the 3.3, 5, and 12 volt legs with the corresponding legs on the ATX PSU, and provide a means to automatically turning the WTX PSU on at the same time as the ATX. You'd have an endless amount power for the system!!


Would this work? Would doing this mess with the power regulation circuitry in the PSUs? Is there arnything in particular that I should be aware of with this?

nihili

[nihili]

Ok, it turns out this is a specialty power supply meant for only a handful of boards. It's not true WTX. On the other hand I've been able to track all the pins by looking at a similar power supply at PCP&P that had better documentation. Between that and looking at various form factor documents, I think I have enough info to rewire this by hand.

wish me luck.

nihili

[nihili]

I've successfully converted this to ATX. Details here (http://forum.oc-forums.com/vb/showthread.php?s=&postid=1007894#post1007894).

nihili