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Thanks for all the links. I already did some ATX conversion without the soft power mod. My first attempt with this mod (soft power) was a fail. I use seasonic PSU as they have enough power ans small form factor to fit in a IIcx PSU. The IIsi PSU looked fine (and it's a SONY PSU) so I decided to...

(y)It was posted 2 days ago and didn't check it before posting. Thanks for the info.

Soldering is ok, open source is a way I may consider also. thanks for the info.

Ok, I understand now how it works in detail compared to ATX PSU. It's "just" a simple link from pin 10 to 9 (with resistor ?), to power this PSU. Unfortunatly, when checking, I link pin 10 & 9 with a 1 k resistor and something blew inside the PSU (not instantly, but after some times). Those PSU...

Thanks, when plugged, my PSU shows only 5V on pin 10, which seems correct as this pin is the 5V stby line. What does the motherboard do with this 5V to tell the PSU to start ? (applying this voltage elsewhere, shorting, .... ) I can put a dummy load on the 5 and 12 volts lines if necessary, but...

Hi everyone, I want to buy some beigeATX to replace my dying PSU (IIci, IIcx, IIsi, ...) but can't buy directly from Anserine as their shop cannot deal (yet !) with EU countries. Is there anyone from this forum that can buy some for me (like 5) and then ship them here in EU (Belgium) ? Of...

Hi everyone, I just recapped the MB and PSU from a IIsi. With the PSU out of the computer, I have a nice 4,96V from the 5V stand by line. How can I start the PSU without putting it in the computer. Which pin of the 10 pin connectors tells the PSU to start ? I want to do this before putting the...

Any chance to order those outside USA ? (EU ?). Have plenty of old psu dying and recapping does not always fix the problem.

The PSU is working now (easy fix). But the mac still show a checkerboard pattern. :(

My additional PSU is not working. Do you know what voltage is it supposed to provide ? I guess there are 2 different voltage, one is 12V for the fan, but the other ... ?

Hi, It looks like we have the same board. I finally took the time to disassemble everything. Here are the pictures. This is the extra PSU, the power is taking directly from the main AC so it doesn't stress the analog board. At the back of the computer, we found this extra card, there...

Any chance to get this adapter shipped to EU countries (Belgium) ?

Hi, I had for a long time in my attic an Apple II inside a wooden box. I don't know what's was the story of this computer. The box is paint and looks nicely made. They are several card inside. I can identify the Disk// interface, an Z80 card, also a 80 column card ?, an another card without...

Hi, The portable acts the same with or without the extra ram card.

Hi, I checked the original charger (I have two of them). The one I'm using is giving me 7,4V - I assume is correct. It's a replacement battery that looks in shape. Can a bad battery cause those errors code ? Thanks,

Hi, I just bought and recap (+ultrasonic cleaning, drying) a non-backlit Macintosh Portable and get an error code when starting. I got the chime, but the a continuous beep and the sad mac's chime. Error code are : 00000003 / 0000FF00 I tried to understand what are those code but cannot...

Well, here's an update. I first start to recap the board with no luck, nothing changed from previous state. I remove the daystar card and the board still won't start. I tried to swap the board to a known good 630, it was worse as the computer shut down immediately. I found a nice video...

Hi, I have a set of 3 macintosh based on the 630 form factor case (including an 6200). - Does they share the same internal architecture (PSU, CD Drive, HD, ...). In other words, can I swap boards across them without care ? - 1 PSU seems dead I tried the 3 boards and no one starts the...

Hi everybody,  I'm currently restoring a few Mac II I have. One of them is working fine (when jump-started). I can't find any tantalum or radial electrolytic capacitors (those who generally leaks), but found only axial one (less subject to leaking).  What would you recommend for putting them...

Hi,  Yes, i tried with additional RAM (with properly configured jumper) and without (switching the jumper) with no chance to get it boot.