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I used ceramics for the nine 3.3uf capacitors. I will look into some tantalums instead. I don't have any breaks in the ribbon flex cables along the side of the screen.

Were you ever able to resolve this issue? I have the exact same problem after a recap on my PB165. I checked the new caps and searched for any broken traces. I also cleaned up all the remaining cap goo, but the screen has remained the same. I have recapped several PB165 and this is the first one...

Years of scanning eBay daily. Someone finally listed one and I won it beating out a lot of bidders. I set my top bid at $350. Thankfully it did not reach that and sold for $244. It's tough to find one.

Thanks. I was about to replace all the RAM sockets. I did replace the top two. I found a lot of battery vomit underneath them. I had not considered the pins. Great advice.

The MacIIFX has the two Nand Gates for the startup/ shutdown circuits located near the RAM sockets on the edge of the board. They are UI18 (shutdown) and UJ18 (startup). There are two capacitors (C24 and C27) that usually leak and eat up the traces of the Nand Gates. Here's a image of the...

I got a 3D printer for Christmas and one of the first things I printed was a hinge support for my PowerBook 145b. The plastic on these old laptops are so brittle. My previous fix of using some epoxy around the standoffs was messy and ugly. These hinge supports are so much better. Just use a...

I was finally able to buy a replacement motherboard and now have a working Mac IIFX. I am guessing there is some battery damage to an inner layer of the board that is the issue. I have shelved my two FX boards for the time being. I will probably attempt a repair again some time in the future. I...

@PotatoFi thanks so much for such a great design. I just bought a 3D printer and this was my first project to print. My print needs a bit of finesse with the Cura slicer program to clean it up, but it fits the BlueSCSI perfectly. Thanks.

I just finished repairing several PowerBooks 180,170, 165 and now working on a 145 all with no power issues. I found that they all are similar. Remove the board. Either the main fuse F1 near the battery terminal is blown (check for continuity) or a diode (D15 or 16) on the back of the board near...

Thank you. I ordered two.

Thank you. I will order when they are back up on the site. Thanks @tecneeq also for the offer.

@PotatoFi Any chance of making a few more of the clips? I purchased a set from you a few months ago and I see that your Etsy page is taking a break. I don't have a 3D printer and I just need a couple of clips for my MacIIx (2) that have broken plastic clips on my ROM holder. Any help or...

I just recapped one of my PB165 and my screen looked exactly the same. I removed the screen again and checked continuity with all the caps and they were good. I plugged it back in and still had the same issue. With the next removal, I noticed small amounts of capacitor goo on the long PCB boards...

Thanks, On one board I did change out the top two RAM sockets because there was battery residue under J37 the top socket in Bank A. On the back of the board I checked continuity across the socket and down to the sockets connected within the bank. I do have a few questions. If anyone can check...

I just think it's weird that both boards are doing the same thing, but with the same three sets of RAM, four ROM chips (one ROMinator) and two power supplies. I've placed them in Bank A and Bank B. With no ROM there is nothing. With a Mac IIx Rom also no boot. I do have some freshly printed...

I have two Mac IIfx boards I am working on. Both give me an immediate death chime at boot. Here's the history of these boards. I pulled them out of storage in 2014 and found the batteries had leaked. Not knowing how to repair the damage then, I removed the batteries and placed them back on my...

There is a great resource with a book called "Troubleshooting_Your_Macintosh_1992" that lists the POST sequence. I am having a similar issue with my MacIIfx with an immediate death chime. My RAM is good and I recently purchased a ROMinator that bypasses the RAM check at startup and still I get a...

This is a very helpful thread. I have two Mac IIfx boards with battery vomit. I have been gradually cleaning them up and have had similar damage and issues, especially with the death chime. Today I was finally able to get one board to start up after I found a small broken trace on the back of...