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ATX PSUs with high amp 5V and 3.3V rails

cobalt60

Well-known member
So I'll start out by saying I don't actually have a question. Just put a lot of effort into finding ATX PSUs with high amp 5V rails, and figured I'd share my findings. That said, any additions to the list would be highly appreciated.

My motivation wasn't to replace a dead PSU, rather, to free up space in my 9600 project. I wanted to meet or exceed the rating of the stock PSU, but with combined 5V + 3.3V A it's kinda hard to know what is really needed on the 3.3V rail.

2023-06-20-050937_689x160_scrot.png

The Enermax isn't particularly high, but is included because it is the highest semi-modular PSU I found. The top is the stock 8600 PSU. I don't remember which have the ports lined up, but I think most do not. I want to mount it flat or further in, so my setup will probably be fairly unconventional. Actually, there is a seller on eBay right now with some TruePowers that have the power input, power switch, and internal cables on the same side, I think that's what I am going to end up using.

Now if you don't need all those 5V and 3.3V Amps, some SFX models look like they would fit beautifully into a 7300 for example, including ports lined up. In addition to freeing up space, you can find SFX with fully modular PSUs. Highest 5V rating on a fully modular SFX Ive found is 25A.

These 1st gen ATX are getting somewhat rare. If you have some old ATX PSUs laying around, might be worth checking their 5V and 3.3V rating.
 

Phipli

Well-known member
So I'll start out by saying I don't actually have a question. Just put a lot of effort into finding ATX PSUs with high amp 5V rails, and figured I'd share my findings. That said, any additions to the list would be highly appreciated.

My motivation wasn't to replace a dead PSU, rather, to free up space in my 9600 project. I wanted to meet or exceed the rating of the stock PSU, but with combined 5V + 3.3V A it's kinda hard to know what is really needed on the 3.3V rail.

View attachment 58212

The Enermax isn't particularly high, but is included because it is the highest semi-modular PSU I found. The top is the stock 8600 PSU. I don't remember which have the ports lined up, but I think most do not. I want to mount it flat or further in, so my setup will probably be fairly unconventional. Actually, there is a seller on eBay right now with some TruePowers that have the power input, power switch, and internal cables on the same side, I think that's what I am going to end up using.

Now if you don't need all those 5V and 3.3V Amps, some SFX models look like they would fit beautifully into a 7300 for example, including ports lined up. In addition to freeing up space, you can find SFX with fully modular PSUs. Highest 5V rating on a fully modular SFX Ive found is 25A.

These 1st gen ATX are getting somewhat rare. If you have some old ATX PSUs laying around, might be worth checking their 5V and 3.3V rating.
Thats really appreciated.
 
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