Finally checked on my collection :/

AHHH! That looks terrible... how come you didn't remove them before storing them?!!  Hopefully you pulled any other batteries from any remaining units!

They have been stored for years long before I read about battery problems. And yes I think I have them all removed now.

Well unfortunately, it might be too late. I see tons of damage to an apple proprietary ic near by. 

Its likely a goner.

Wow, that's too bad...  UF18 looks like it's gone. it's a real time clock chip, but apple specific.

I'd still take a shot a cleaning it up, but it doesn't look good.

This pains me. Rest in peace, IIfx.

I know how you feel.  I'm trying to save my quadra 700.  I'm sure you'll see the thread.  The corrosion on the chip does look bad.  But that doesn't mean it's not working.  It's possible.  And there are always doner boards taht are dead completely that you can use for parts.  You've got a lot of cleanup to do.  Feel free to pm me for advice - as I'm in a similar situation except for a different model.  It might turn out in the end to be non recoverable - but I had to give it a try. 

To get this working you're going to have to deal with missing parts (at least I am), broken traces, via corrosion, chip /pad corrosion (meaning you'll have to remove some chips, clean them up, resolder them and hope to god that they still operate normally, or replace them alltogether if it's non apple specific.

I guess the real question is how much time are you willing to invest into it.  Repairs like these aren't for the faint of heart!  I wish you the absolute best of luck. 

I feel your pain.

jhorvath911 said:

Well I made it out to check on my macs today. One battery explosion and of course it was the IIfx. Any chance of repairability?

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Yeah I've been watching the Quadra 700 thread, was one of the reminders for me to check mine. I was thinking I'll clean it up some and then try to get a better idea if it's salvageable.

Some advise - use a toothpick and vinegar to remove it.  Remove the vinegar afterwards.  Use iso alcohol to remove.  Be careful around traces.  I found a toothbrush to be too abrasive for trace heavy areas.  Also I tried acetone - I think it was a little too strong.  It worked but I've got some areas where the traces are exposed (mask has worn off).  So my advise would be vinegar and a toothpick for the heavy stuff.  Maybe a toothbrush for lighter stuff.  Compared to mine, yours doesn't look that badly damaged...  Once you get the heavy stuff off you'll probably see that the traces are mostly still intact.

Of course my one board with a leaked maxell battery would be the one board I have that didn't have any electrolytics on it...

jhorvath911 said:

Yeah I've been watching the Quadra 700 thread, was one of the reminders for me to check mine. I was thinking I'll clean it up some and then try to get a better idea if it's salvageable.

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Thanks for the reminder - I just got around to checking my IIci and Q700 that I got a few months back.
IIci had caps that were going south (worst ones were on the cache card) and it had this, with just a little bit of the bad, but it cleaned up nicely and I escaped with a just a warning.

Oddly my SE/30's Maxell was the only thing that hadn't leaked.

It might be savable. It depends on the damage under the batteries. UF18 might be shot up but who knows, maybe playing spider and wire up some webbing might fix it.

I just dragged out a few of my machines... my other CC and two formerly working Classics. really am hoping for the best but expecting the worst. These havent seen daylight in some time.

I was digging for something and one plastic tub full of nubus cards had some moisture in the bottom (plastic was cracked in a corner and it was on the floor). Just looks like some screws rusted holding the nubus brackets so nothing too bad. Still would hate to lose them due to water damage. Storing things in the dark corners of the basement has its issues.

Treat the water damage like cap goo - dunk it in acetone and sloosh it about for a few minutes, air blow it dry and then chase it with an alcohol dunk - again sloosh it about for a few minutes and air blow it dry. That will clean up the boards and let you examine the damage better.