![\"A2kPSU\"](\"http:\/\/wordpress.hertell.nu\/wp-content\/uploads\/2015\/07\/A2kPSU.jpg\")
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This is how it looks like. (the fan on this have been changed once if you haven’t changed it. DO get a new 80x80mm fan.<\/p>\n
Now it is time to remove everything from the inside.<\/p>\n
<\/p>\n Cut off the wires to the incoming 220V connector AND to the powerswitch (as that switch will not switch the 220V anymore)<\/p>\n <\/p>\n Now you have 2 loose wires for the 220V and the powerswitch is also alone.<\/p>\n Time to open up your ATX PSU and remove all electronics. (it is important that the atx PSU has a smaller mainboard then the original one, usually no problem if it is a 200-400W PSU. and you often does not need more)<\/p>\n <\/p>\n This is the ATX psu electronics ripped out.<\/p>\n Now just to be sure, we have to insulate the bottom of the motherboard.<\/p>\n there was a plastic sheild in the A2000 PSU that can be used, but mine was too small. So how to do it?<\/p>\n well, I found a package from a toy I got my son. \u00a0you know the damn plastic things you have to use force to open?<\/p>\n <\/p>\n Well.. I did cut out a part that fit my PSU and actually hotglued it to the bottom:<\/p>\n <\/p>\n Now when everything is insulated. lets start fix the wires.<\/p>\n From the old A2000 PSU, remove the connector to the motherboard:<\/p>\n <\/p>\n Now when you have the connector loose:<\/p>\n <\/p>\n Lets check the pinout of the A2000 PSU:<\/p>\n 1, 2, 3 and 4 (Yellow on this picture) is +5V now we have 2 problems. the ATX does not contain a -5V (WELL old ones does! then you can connect it) for the others, connect them to the ATX PSU; <\/p>\n As you can see on the specifications:<\/p>\n Cut off 4 Red wires (+5V) on the ATX and connect to the Amiga +5V (Yellow for me)<\/p>\n Cut off 4 Black wires (GND) on the ATX and connect to the Amiga GND (Blue for me)<\/p>\n Cut off one Yellow wire (+12V) on the ATX and connect to the Amiga +12V (Orange for me)<\/p>\n Cut off one Blue wire (-12V) on the ATX and connect to the Amiga -12V (Red for me!) (NOTE!! \u00a0easy to do wrong here. NO +5V<\/p>\n Cut off one Red wire on the ATX (if you do not have any more, using Version 1.0 solder a wire from the +5V) and connect to the Amiga +5V User (Green for me)<\/p>\n Also cut off a Black wire and the Green (powerON) so you have long wires for this.<\/p>\n Now you should have something that looks like:<\/p>\n <\/p>\n <\/p>\n now the rest of the wires to the ATX Connectors, like +3.3V etc are not used. so cut the wires close to the motherboard and insulate:<\/p>\n <\/p>\n also do this for the SATA cables and GPU cables as they will not be needed and only takes space.<\/p>\n Now lets mount eveything inside the old A2000 PSU Case:<\/p>\n <\/p>\n As my board only had one screwhole that did fit, I screwed it in place and used hot glue to put the rest in place.<\/p>\n Now solder the 220V cable to the loose ends we had before. AND the black\/green wire we have free, put them to the powerswitch.<\/p>\n AND connect the fan aswell.<\/p>\n <\/p>\n Now lets put all back together again: (Remember it should blow OUT of the PSU)<\/p>\n <\/p>\n Looks like the old PSU.<\/p>\n Before connecting, measure that you connected everything right in the cable to the motherboard.<\/p>\n <\/p>\n BUT! you will fail turning the machine on. powerled will only flash and it will restart.<\/p>\n this is due to the TICK signal is missing,, but inside the machine you have a jumper J300 move this to this setting:<\/p>\n<\/a><\/p>\n<\/a><\/p>\n<\/a><\/p>\n<\/a><\/p>\n<\/a><\/p>\n<\/a><\/p>\n<\/a><\/p>\n
\n5, 6, 7 and 8 (Blue on this picture) is GND
\n9 (Orange on this picture) is +12V
\n11 (Red on this picture) is -12V
\n12 (Green on this picture) is +5V User
\n13 (White on this picture) is -5V
\n14 (Black on this picture) is TICK.<\/p>\n
\nand ATX does not have a TICK signal. \u00a0we have to skip them (more about TICK later) so insulate them<\/p>\n
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