Any modern ATX should work from my understanding. I've also just done this with a Pentium computer (1995 Packard Bell Legend 812CD with a 100mhz Pentium) and it runs fine.

It will run fine. But Early ATX and nowaday ATX psu's got different technology solutions. You can use even SeaSonic Platinum-1200Watt with this adapter. But personnaly I wouldn't go with it, if you won't shorten liveliness of your mobo then better look for an cheap AT psu in price of this adapter on second hand store, charity sale, car boot sale, thrift store whatever.

Godlike

Yep, these work just fine with newer PSUs. I've been using them Corsair semi-modular 430W power supplies without issue.

I've seen some PSU's that don't supply -5 volts and from working with the TeraDrive (Which doesn't have any negative rails) I can only imaging this might be an issue. In the teradrive it prevents the amp working on Sound Blaster cards, that much is for certain.

Yep, that's why you need one of these: www.ebay.com/itm/251025150787

Artex wrote:

Yep, that's why you need one of these: http://www.ebay.com/itm/251025150787

English isn't his native language so he will have to pay for international shipping of 36usd total. I would suggest to by AT psu somewhere cheaper and dedicated to that hardware. Is up to thread owner of course.
Regards

He could always just repair the fan too of course... Though that can be dangerous if you don't know what you're doing with mains power.

but the modern ATX are different from the ATX from more than a decade ago.

That's correct!
As you said the specification for newer ATX is different from the ATX 1.0. You'll see the power cable is simply missing the -5v wire, that's normally WHITE.

hookan91, what kind of cards do you use with those motherboards? All PCI? Some ISA?

I'm using a really recent ATX psu in my retro computer, but had to buy an ATX -> AT adapter because the psu itself didn't supply -5v to the motherboard.
That did cause some issues with some ISA cards that make use of that voltage­, for example the Sound Blaster 2.0 and the LAPC-I, making them either not work or output garbage.

Godlike wrote:

Artex wrote:

Yep, that's why you need one of these: http://www.ebay.com/itm/251025150787

English isn't his native language so he will have to pay for international shipping of 36usd total. I would suggest to by AT psu somewhere cheaper and dedicated to that hardware. Is up to thread owner of course.
Regards

A AT PSU isn't out of the question, i found several on auction sites here. But the converter in the OP is around $5 to ship to Brazil. $12 for the converter is cheaper than a used AT PSU.

HighTreason wrote:

He could always just repair the fan too of course... Though that can be dangerous if you don't know what you're doing with mains power.

I prefer not to mess with it, i would probably end up breaking it.

Beegle wrote:

That's correct! As you said the specification for newer ATX is different from the ATX 1.0. You'll see the power cable is simply […]
Show full quote

but the modern ATX are different from the ATX from more than a decade ago.

That's correct!
As you said the specification for newer ATX is different from the ATX 1.0. You'll see the power cable is simply missing the -5v wire, that's normally WHITE.

hookan91, what kind of cards do you use with those motherboards? All PCI? Some ISA?

I'm using a really recent ATX psu in my retro computer, but had to buy an ATX -> AT adapter because the psu itself didn't supply -5v to the motherboard.
That did cause some issues with some ISA cards that make use of that voltage­, for example the Sound Blaster 2.0 and the LAPC-I, making them either not work or output garbage.

I have these cards installed on both the VA-503+ and SY-5EHM:

AGP - S3 Trio 3D/2X
PCI - Diamond Monster 3D II
PCI - NIC 10/100
ISA - Labway LWHA151A00 (Yamaha YMF719E-S chip)

I have these cards installed on both the VA-503+ and SY-5EHM:

Check the pins on the Labway ISA sound card to see if it uses the -5v or not.
the -5v connector is located underneath (the side without chips) of the card, 5th position from the start.

according to this image (http://img-fotki.yandex.ru/get/5014/157862395 … 2443d1f9_XL.jpg)I found of the Labway LWHA151A00, it should not use the -5v.

hookan91 wrote:

A AT PSU isn't out of the question, i found several on auction sites here. But the converter in the OP is around $5 to ship to Brazil. $12 for the converter is cheaper than a used AT PSU.

Then go with new ATX psu and adapter that produces -5 for your ISA slots
EDIT: If you have ISA slots then you must deliver -5 to slots in case of changing cards

Sorry for the late reply.

Beegle wrote:

Check the pins on the Labway ISA sound card to see if it uses the -5v or not. the -5v connector is located underneath (the side […]
Show full quote

I have these cards installed on both the VA-503+ and SY-5EHM:

Check the pins on the Labway ISA sound card to see if it uses the -5v or not.
the -5v connector is located underneath (the side without chips) of the card, 5th position from the start.

according to this image (http://img-fotki.yandex.ru/get/5014/157862395 … 2443d1f9_XL.jpg)I found of the Labway LWHA151A00, it should not use the -5v.

Thanks for the information. I grabbed my Labway and confirmed that it doesn't have the -5v connector.

Godlike wrote:

hookan91 wrote:

A AT PSU isn't out of the question, i found several on auction sites here. But the converter in the OP is around $5 to ship to Brazil. $12 for the converter is cheaper than a used AT PSU.

<br abp="616">Then go with new ATX psu and adapter that produces -5 for your ISA slots<br abp="617">EDIT: If you have ISA slots then you must deliver -5 to slots in case of changing cards

I bought the adapter 2 days ago from Amazon. It "should" be here in 1-2 weeks.

Thanks everyone for the replies.

Soundcards requiring -5v to operate are really scarce. So far only SB 2.0, Roland LAPC-I and some species of Media Vision Pro AudioSpectrum 16 are confirmed to do so.