BTX Power Supply

Kona*

Kona*

Kona*

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29 Dec 2003
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Newcastle upon Tyne
I am having a bit of a dilema trying to find a BTX power supply to go into my Optiplex GX620 chassis. I have seen a Tagan 2Force 430W PSU that says it will support the BTX standard but nowhere on the Tagan website does it mention BTX. Does anyone know of a decent BTX PSU? And also does anyone know if a GX620 takes a standard size PSU?

Cheers,

Craig
 
What are the power connections on your motherboard, can you list them please? Can you measure the size of your current PSU and we can compare it against an ATX one.
 
Ill take a pic and do some measurements when I get home - just at work on site at the moment! :)

Craig
 
Dell's have changed since then. IIRC, standard PSU's should work in your system just fine. Any reason why you wish to change the current PSU?

Mul
 
Right then, here be some pictures - the back of it will fit a normal PSU fine I think. Just need someone to confirm the 24-pinouts.

(Thumbs, Click to enlarge)














By the way - I have a Tagan TG480-U01 here, its the older model of the 2Force PSUs, if I buy a 20pin to 24pin splitter (assuming pinouts are the same) would I be able to use it?

Cheers,
Craig
 
Right I have done a bit of digging about, and the missing pin on my 24pin connector is the -5v line, and I dont *actually* know what the brown cable going into the orange one does. Does this sound right? Cheers,

Craig
 
No idea on that small brown one. (unless this is particular to dell) <see EDIT below..
Another thing that used to be needed on some dells was one of these, but yours looks different.

You can see the pin out of of BTX here.

EDIT: Iv'e solved the mystery of the brown wire.
Take a look at this. (can you see that brown wire)
Thats an OCZ Powerstream.

The blurb over here tells me...

OCZ ConnectAll™ universal connector. (ATX, BTX SATA, P4 and EPS12V)

So I guess that brown wire if just part of it, and is standard.

An OCZ is way too deep for your machine tho (over 7 inches IIRC)

I think you need to get a tape out.
 
Last edited:
Thanks for the info spit, here is a picture of the inside of my case with a tape measure held up to it (it looks longer in the pic but its only about 1" longer than the Dell PSU)





I will try and phone up Dell today and find out if I can plug in a normal 24pin connector, or if I really need a special BTX one - as I have seen plenty of 20pin ATX to 24pin BTX convertors around and they are wired exactly the same as the 20pin ATX to 24pin ATX convertors.
 
Good luck with DELL.
here is the depth of an OCZ. (175 x 150 x 86mm)
You can see in a review here...Supports ATX12v version 2.0, BTX, EPS12V and PCI Express.

I don't think that model is made any more either, and looking over here I get..End of Life Power Supplies.

The people who make OCZ power supplies also make Tagan.
Looking at a review of a Tagan TG480-U01, it says...."Their other big selling point for the TG480-U01 is its support for future ATX and BTX specifications that have yet to be ratified"

Have a look at the Tagan TG480-U01 480W ATX2.0 SLi Compliant Silent PSU (CA-000-TG) @ £58.69 Including VAT at 17.5%

Supports up-comming BTX format and PCI-Express motherboards and reading the .PDFs on the other models they have the same outlets, but just don't mention BTX.
Thats 160MM deep.

Good luck with it anyway :)
 
Well I eventually got it working! My Tagan was indeed the TG480-U01, but an older version without the SLI connectors. It was actually a 24-pin connector on it but my observations were a bit shoddy :p Anyway to cut a long story short, I stuck in the PSU and prayed that it didnt blow my motherboard (or anything else inside the PC) - Dell had said I could use a BTX-Compliant PSU, but they couldnt say "Yes" incase I went back to them when it blew up and said they told me to do it. Thanks for all your help, especially split :) Karma to you (it comes around eventually)

Craig
 
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