ATX connector to STe power diagram

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dma
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ATX connector to STe power diagram

Post by dma »

Hello there, i have not found any clear concise information on this, so i am asking:
Could someone provide/explain the connections from an ATX connector to STe power connector + power switch ?

Sorry if this is utterly obvious for electronics experts but as this is a sensible element, i would appreciate some clear directions, "pre-checked" if you will.

Thanks in advance.
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Re: ATX connector to STe power diagram

Post by tzok »

Switch is PS-ON (green) to ground (black). Ground is black, +12V is yellow (blue on ST), and +5V is red (same as on ST). ST power connector is (from left/cartridge port to right/floppy drive): 1, 2: +5V, 3, 4, 5: GND, 6: +12V (formally the pin numbering is reversed).

Here's a nice description: https://blog.troed.se/projects/atari-st ... placement/
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dma
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Re: ATX connector to STe power diagram

Post by dma »

@tzok : OK many thanks for the precise answer.

So, according to these two schemas:
https://atariage.com/forums/topic/28870 ... nt-4384316
https://pinouts.ru/Power/atxpower_pinout.shtml

The following diagram would work, isn't it?
atx-power-st-draft.png
(quality diagram eh :lol:)
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Re: ATX connector to STe power diagram

Post by dma »

Anyone able to confirm me that this montage would work?
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Re: ATX connector to STe power diagram

Post by DoG »

According to the pinout on the site you linked all seems to be right.

EDIT: (Your switch should be a momentary one) Not true apperently. I was wrong. Sorry about that
Last edited by DoG on Sat Aug 22, 2020 4:07 pm, edited 1 time in total.
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Re: ATX connector to STe power diagram

Post by tzok »

Seems ok, switch needs to be a toggle switch, not a momentary one.
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Re: ATX connector to STe power diagram

Post by DoG »

tzok wrote: Sat Aug 22, 2020 2:56 pm Seems ok, switch needs to be a toggle switch, not a momentary one.
Yup, I changed my post. Usually you used a latching momantary switch on old PC cases. Same as a toggle switch.
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Re: ATX connector to STe power diagram

Post by dma »

Many thanks for your attention and review guys, i can now go for it and revive the STe. :)
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