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Small update, finally got around to ordering the parts, just waiting for them to get here.  In the mean time I decided to try starting it up, and managed to get a chime and a gray screen, but then there's some crackling from the AB and it goes blank again.  So not sure if that's more bad caps on...

I don't think I've ever seen an old used mac at the three goodwill's near me.  I'm not sure they even sell computer stuff in general any more.  I need to tell 21 year old me to buy up all this stuff back then.

Yes I cleaned the LB with 99% IPA.  Checked all the caps on it as well and some seem connected to ground but without a schematic I have no idea if that's supposed to happen or not, so I'm kind of probing blind here. Got some digikey or mouser part numbers I can look at for the diodes and IC's?

Re soldered C4, and recapped most of the Analog Board, still no boot chime, blank screen.  Volts from the hard drive connector still reading low. 4.50 and 11.50 with the motherboard hooked up, 5.12 and 11.10 without the motherboard hooked up.  Case fan turns on, and that's about it.  Not sure...

Not particularly pretty but as far as I could tell with a multi-meter all the solder connections were solid.  The bodge wire on C9 is embarrassing though and i just noticed some corrosion on the ADB port by C3.  so I will probably have to  clean under there and re-solder that, which I'm not...

Guess I will have to see if I get more life after recapping the Analog Board.  Would be discouraging if I fried the logic board replacing its caps :/

I mean exactly what it says on the tin.  Screen was blank, like it had no power at all. I am currently waiting on new caps from mouser, and in the mean time have removed the old caps and cleaned up the board.  only a few of the caps were leaking but could be the cause. I'm not entirely...

Got 80 bucks? http://www.memoryx.com/pb140024.html Though I would call or email them first, they don't always actually have items in stock when they say they do.  That's the price you pay for making your own ram I guess.

Using a multi meter and probing the molex connector, i got the following voltages: 10.85 on the orange, and 4.68 on the red. Pretty sure that's well outside the normal range of 12 and 5.  Guess the analog board is up for a recap for sure. edit: after letting it sit on for a bit I ended up...

So I found some very nice and clear pictures in this thread, and I was able to get a very small wire connecting the cap to the via at the end of the trace for c9.  Trying to turn it on the first time after recapping the board, I got a start up chime, but then heard some electrical pops and...

I got a Classic II that just displayed a checkerboard pattern.  In the process of replacing the mother board caps with tantalums I managed to lift off both pads of capacitor C9.  Does anyone know where those traces go so I can wire it up?  Or should I just not bother now?  

There is small metal clip that supports the original CPU card just fine, but it doesn't do my upgrade any good since this particular one is a very small board compared to some of the other upgrades I've seen.  It's no wider then the CPU socket itself.  Everything is pretty tight though and there...

So a bit of an update, I never did figure out why the upgrade liked some ram in some slots but not in others. Seeing as how it works with the 512 megs I have and I don't plan on maxing it, I'm not going to worry too much about it.  As an FYI for things mentioned above, I did not see any signs of...

I bought a "mac tool" from Fry's (I think) in... 2002ish?  Still has the label on it.  "SCREWDRIVER. EXTRA LONG SHAFT".

Well I took a look at the caps, they actually all looked fine on the motherboard, but replaced them with tantalum anyways just to be on the safe side.  hard drives still wouldn't show up.  Then I stumbled upon a IIsi service manual pdf that said first thing to do for hard drive powering on but...

I have a IIsi and 4 quantum drives that I've tried with it that it will not see when I boot off a 6.0.8 floppy.  One of the drives I'm sure has a stuck head, but the other three all do the initial power on routine and they show up in my 9600, running disk first aid on them reveals no problems. ...

When I bought my 9600 used years ago it had a RTL8139 based card in it that I could never get working, good to see there is something out there that works and is cheap.  Not something I expect out of a 20 year old machine!

On further testing, it appears that this particular G3 upgrade does not like memory slot B1.  I'll have to remember that if I ever decide to max out its ram.  I will see if it has any more start up issues in the next few days but so far its working ok right now.  Kind of odd because I actually...

I think it could be a ram issue.  or a ram bank issue, I'm still trying different setups.  The main error i would get is a chime and then freezing on the happy mac before loading the OS splash screen, tho occasionally I would get to the splash screen and then it would freeze, ususally before any...

Off and on reader, brand new user here. I have a 9600/200 with a powerlogix G3 900/512k upgrade that has been giving me some trouble.  I recently dug it out a few weeks ago after putting it away in... 2005ish?, and it just does not like to boot up with the upgrade card installed.  Boots fine...