[SOLVED] What PSU standard is this?

Gothic_Day

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Oct 31, 2015
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I have a vintage HP Pavilion 3260 that has been working fine for a while, but upon using it today, I believe the power supply has failed. I had to repeatedly plug and unplug the outlet until the computer powered on. Letting it idle for about 15min, it shut off. Attempted to start it again, but it turns off right when Win98 starts to load. Now I can't get it to do anything. While I have no firm evidence that it is actually the PSU, my instincts lead me to believe it is. So naturally, I started looking at replacement PSUs for it. I cannot seem to find any on eBay, and the only thing in stock I can find is here. I am hoping there is some other option I can use to provide power to the case. I am comfortable around a soldering iron, if needed.

tl;dr

What power supply is this? Where can I find one? Is it standard? No multimeter owned.

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Solution
What power supply is this?

Is it standard?

Proprietary.

Nope.

But if you're creative, you can get this working easily. That PSU is so low power and so large, you could essentially retrofit anything in it's place and it will be a HELL OF A lot more reliable than an old/refurbished PSU.

So, the connection to the motherboard seems to be AT. You need 15A on the +5V.

What I would do is get a really small ATX PSU, or a power brick and a PICO PSU (assuming you can find a PICO PSU that can put out 15A on the +5V) and an ATX to AT adapter.
What power supply is this?

Is it standard?

Proprietary.

Nope.

But if you're creative, you can get this working easily. That PSU is so low power and so large, you could essentially retrofit anything in it's place and it will be a HELL OF A lot more reliable than an old/refurbished PSU.

So, the connection to the motherboard seems to be AT. You need 15A on the +5V.

What I would do is get a really small ATX PSU, or a power brick and a PICO PSU (assuming you can find a PICO PSU that can put out 15A on the +5V) and an ATX to AT adapter.
 
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Solution

Gothic_Day

Honorable
Oct 31, 2015
24
0
10,510
Proprietary.

Nope.

But if you're creative, you can get this working easily. That PSU is so low power and so large, you could essentially retrofit anything in it's place and it will be a HELL OF A lot more reliable than an old/refurbished PSU.

So, the connection to the motherboard seems to be AT. You need 15A on the +5V.

What I would do is get a really small ATX PSU, or a power brick and a PICO PSU (assuming you can find a PICO PSU that can put out 15A on the +5V) and an ATX to AT adapter.
so just to clarify, the footprint is proprietary, but the actual wiring is AT compatible?
EDIT: In addition, what is the purpose of the second lead with the 3 pins?
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EDIT 2: I'm looking at this power supply and this adapter cable. Do I have the right parts selected?
 
Last edited:
That is a standard AT pinout.

Don't know what the three pin is. Looks like a fan header, but a fan wouldn't use both +5V and +12V. The wires are red, not orange, yellow and black, right?

And yes, that PSU you linked is an ATX PSU (albeit the crappiest you could possibly buy) and that adapter you linked adapts ATX to AT.

But you'll never fit that ATX PSU into your case. That's why I said SMALL ATX PSU (you'll have to fabricate some way to secure it inside the case) or a power brick. If you use a power brick, you would just feed the DC cable in through the hole in the back.
 
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Gothic_Day

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Oct 31, 2015
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That is a standard AT pinout.

Don't know what the three pin is. Looks like a fan header, but a fan wouldn't use both +5V and +12V. The wires are red, not orange, yellow and black, right?

And yes, that PSU you linked is an ATX PSU (albeit the crappiest you could possibly buy) and that adapter you linked adapts ATX to AT.

But you'll never fit that ATX PSU into your case. That's why I said SMALL ATX PSU (you'll have to fabricate some way to secure it inside the case) or a power brick. If you use a power brick, you would just feed the DC cable in through the hole in the back.
Thanks for your insights. You have been most helpful to me. I don't intend to put the PSU inside the case, as the location I have it in allows me to adapt and feed wires (it's in a functional display type setting with hidden spots). I do agree that the PSU is a cheap-o. The computer was free, found on the side of a road a few years ago, so I don't really want to put a lot of money into it, since I'm not that serious about it.