Amiga.org

Amiga computer related discussion => Amiga Marketplace => Topic started by: don27dog on February 12, 2014, 03:53:53 PM

Title: Wanted A3000T Power Suppy or ATX adapter
Post by: don27dog on February 12, 2014, 03:53:53 PM

I am looking for a Power Supply for A3000T or an Adapter Cable for an ATX Power Supply. I have checked AmigaKit and they only have adapters for 3000D. I see AmigaManiac has adapters for 3000T but he seems to have abandoned his website and there is no way to contact him. I am not comfortable enough to try to build my own adapter. If anyone has the skills and is willing to build an adapter I am willing to pay for parts and your time to build one.

Title: Re: Wanted A3000T Power Suppy or ATX adapter
Post by: Oldsmobile_Mike on February 12, 2014, 04:38:29 PM

Post #16 in this thread might be of some help to you:

http://www.amiga.org/forums/showthread.php?t=66739&highlight=A3000T

Title: Re: Wanted A3000T Power Suppy or ATX adapter
Post by: don27dog on February 12, 2014, 05:17:09 PM

Thanks Mike,

Kind of ironic someone else was looking for a 3000T power supply and two weeks later mine dies after 20+ years. If need be I will track down the connectors and try to make my own but I am really not all that confident in my ability. I would rather not watch my motherboard go up in a puff of smoke..

Title: Re: Wanted A3000T Power Suppy or ATX adapter
Post by: don27dog on February 19, 2014, 02:12:14 PM

Ok.  I have gutted the 3000T power supply and have found a new ATX power supply that fits inside the shell of the original power supply. I have found this pin out which seems simple enough. My question now is how do I wire the power button on the front of the 3000T to the new power supply?

Amiga pin #   Description   ATX colour   ATX pin #

1      Tick      N/A      N/A
2      -12V         Blue      12
3      -5V      None      N/A
4      Gnd      Black      3
5      Gnd      Black      5
6      Gnd      Black      7
7      Gnd      Black      13
8      Gnd      Black      15
9      +5V      Red      4
10      +5V      Red      6
11      +5V      Red      19
12      +5V      Red      20
13      Fail      Grey      8
14      +12V               Yellow      10
15      +12V               Yellow      10
16      +5V_USER     Red      4
17      Gnd      Black      16
18      Gnd      Black      17
19      Gnd      Black      3
20      Gnd      Black      5
21      +5V      Red      6
22      +5V      Red      19
23      +5V      Red      20
24      +5V      Red      4

Title: Re: Wanted A3000T Power Suppy or ATX adapter
Post by: Kernel on February 21, 2014, 03:22:37 AM

Amigakit sells an atx to a3k motherboard connector with a power button on a cable.  Might want to try that...

And im curious... I dont suppose it would fit into an a3kd ps case would it?

Title: Re: Wanted A3000T Power Suppy or ATX adapter
Post by: aggro_mix on February 21, 2014, 08:34:04 AM

Most (if not all) ATX PSUs these days don't include the -5V line.

Maybe the A3k will work without it or you'll have to get a voltage regulator