You will need an ATX to AT adaptor. I'm not sure about AWE64, but if it needs a -5V, you'll have to use something like the Voltage Blaster.

Thank you.

Is the adapter all that is needed?
I've read about the ATX2AT smart converter but it seems that it's n0t for sale anymore.
I'm not too worried about the soundblaster, my first priority is getting the system to work before I move to other priorities.

https://www.amazon.com/s?k=at+to+atx+adapter& … apt%2Caps%2C198

I use a short ATX PSU in a low profile 486 with an adapter. It's overkill from a power perspective, but it works just fine with the reliability I expect from a new PSU. You might want to check the amps on the 12v and 5V rails of your PSU to make sure it's good enough for your parts.

Have you picked a case? Depending on how you go about this, remember that you may need to convert the front power switch from an intermittent to a latching one. I like E-Switch TL2285EE.

If oyu don't have any AT PSU's then it definitely makes more sense to use an ATX with adapter then trying to buy an old AT PSU.
These systems are not power hungry, I'd think both your PSU's are up to the task.

Not many cards require -5v
ISA Cards & Devices Requiring -5V

fosterwj03 wrote on 2025-04-02, 00:29:

I use a short ATX PSU in a low profile 486 with an adapter. It's overkill from a power perspective, but it works just fine with the reliability I expect from a new PSU. You might want to check the amps on the 12v and 5V rails of your PSU to make sure it's good enough for your parts.

This wont be an issue with a normal Pentium socket 5/7 system, the only time you need to worry about this is with AMD socket 462 boards that dont have the 4 pin 12v supplemental power connector.

If you are not opposed to changing the motherboard, you could go with an ATX SS7 board and take the need for an AT case and power supply adapter out of the question.

jakethompson1 wrote on 2025-04-02, 00:36:

Have you picked a case? Depending on how you go about this, remember that you may need to convert the front power switch from an intermittent to a latching one. I like E-Switch TL2285EE.

Not yet but I'm looking for a nice one.
Do I need to replace the power switch of an AT case with a latching switch also?

ChickenNugget wrote on 2025-04-02, 16:32:

jakethompson1 wrote on 2025-04-02, 00:36:

Have you picked a case? Depending on how you go about this, remember that you may need to convert the front power switch from an intermittent to a latching one. I like E-Switch TL2285EE.

Not yet but I'm looking for a nice one.
Do I need to replace the power switch of an AT case with a latching switch also?

It depends on the case, but the latching switches usually attached to the AT power supply itself.

I guess that's wete the atx2at adapter with switch comes into play

ChickenNugget wrote on 2025-04-02, 16:32:

jakethompson1 wrote on 2025-04-02, 00:36:

Have you picked a case? Depending on how you go about this, remember that you may need to convert the front power switch from an intermittent to a latching one. I like E-Switch TL2285EE.

Not yet but I'm looking for a nice one.
Do I need to replace the power switch of an AT case with a latching switch also?

AT cases already have a latching switch. Because it's designed for the full 120V/240V to pass through it, it's way overboard just to signal an ATX to turn or off, but it will work. That's why the ATX-AT converters you see have those wires with the oversized connectors on them.

So if I'm not mistaken, than I connect the oversized connectors from the ATX to AT adapter to the TL2285E?
I also got a cooler master ATX PSU, which says it has 5v on it, do I still need a voltage blaster for the system?

ChickenNugget wrote on 2025-04-04, 13:10:

So if I'm not mistaken, than I connect the oversized connectors from the ATX to AT adapter to the TL2285E?
I also got a cooler master ATX PSU, which says it has 5v on it, do I still need a voltage blaster for the system?

That is the +5V, not minus. It depends, if your ISA sound card worked without it so no, you'll not need the -5V.

cyclone3d wrote on 2025-04-02, 02:54:

If you are not opposed to changing the motherboard, you could go with an ATX SS7 board and take the need for an AT case and power supply adapter out of the question.

This is the best way forward in my opinion.

jakethompson1 wrote on 2025-04-02, 00:36:

Have you picked a case? Depending on how you go about this, remember that you may need to convert the front power switch from an intermittent to a latching one. I like E-Switch TL2285EE.

Or just use the reset switch, assuming the case has one. Almost all of them do.

Jasin Natael wrote on 2025-04-04, 15:38:

cyclone3d wrote on 2025-04-02, 02:54:

If you are not opposed to changing the motherboard, you could go with an ATX SS7 board and take the need for an AT case and power supply adapter out of the question.

This is the best way forward in my opinion.

I've tried looking for one before I went with socket 7. Didn't see any reasonable priced ones, 300+ $.

Jasin Natael wrote on 2025-04-04, 15:38:

cyclone3d wrote on 2025-04-02, 02:54:

If you are not opposed to changing the motherboard, you could go with an ATX SS7 board and take the need for an AT case and power supply adapter out of the question.

This is the best way forward in my opinion.

I've tried looking for one before I went with socket 7. Didn't see any reasonable priced ones, 300+ $.

Jasin Natael wrote on 2025-04-04, 15:39:

jakethompson1 wrote on 2025-04-02, 00:36:

Have you picked a case? Depending on how you go about this, remember that you may need to convert the front power switch from an intermittent to a latching one. I like E-Switch TL2285EE.

Or just use the reset switch, assuming the case has one. Almost all of them do.

I'm still looking for a ugly 90s case.

Jasin Natael wrote on 2025-04-04, 15:39:

jakethompson1 wrote on 2025-04-02, 00:36:

Have you picked a case? Depending on how you go about this, remember that you may need to convert the front power switch from an intermittent to a latching one. I like E-Switch TL2285EE.

Or just use the reset switch, assuming the case has one. Almost all of them do.

The reset switch is also intermittent