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Glad Im not married. 

BTW, thats the first time ive ever seen a 393 go bad. Go figure. 

Also, word of advice I would not replace an F series 393 with an LS, the speeds are completely different. Seems to work in this application, but the chip might get quite warm!

To be quite honest, I would never figured that one out without having a scope on it. 

 
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Great work!

And I have same problem as joethezombie bringing another mac behind my wife's eyes...

 
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That's right! she wouldn't notice. But I can't have enough time finish other issue than mb(hard drive,floppy drive,cleaning case  and so on...) and market is narrow in Japan.but I can't stand to bid it when I find anther non-working/good-price SE/30 on auction...

 
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BTW, thats the first time ive ever seen a 393 go bad. Go figure. 

Also, word of advice I would not replace an F series 393 with an LS, the speeds are completely different. Seems to work in this application, but the chip might get quite warm!

To be quite honest, I would never figured that one out without having a scope on it. 
 
If your you look good, the 393 originals chips are LS series not but of F, and the spare used is fully compatible.
 
This MAC still running great!
 
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