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I like pushing my luck, lol. Yes, I put it on a shelf in my office sometime in '09, '10, or thereabouts and had it running the Clock program off a floppy boot disk. The only time it was powered off was during random power failures, the one time I had to fix the C15 capacitor, bi-annual reboots...

I'm not entirely sure it's the flyback either but the whining noise makes me suspect it. The part I replaced previously (I think) was the capacitor at C15. IIRC it had the "bright vertical line" symptom. I did reflow every joint on the analog board and the yoke connector. I added a touch...

I have been using this SE as a clock at my office for 10+ years and other than one blown cap on the analog board that I fixed, it's been working great. I came back from an appointment last week and immediately noticed that the screen was very dim and appeared to be way too large. I took it...

I will be curious to see what happens... I have mine in a LC550 with OS 7.5.5 and way more than 8MB RAM and it works fine although as noted I do have to turn 32 bit addressing off when using the card.  It will request that I do so before the software will run IIRC.  That's a totally different...

So with that Rev. A ROM... how is your IDE set up?  Rev A is limited to one device per channel... I see you mentioned a hard drive, Zip, and CD-ROM... if you haven't already tried this, remove the Zip drive from the equation and have your HD and CD-ROM on separate channels.  I don't remember...

What happens if you hold the shift key while booting to disable extensions?  Will it complete a boot then? Might also try initializing the drive using Drive Setup and update the drivers on the drive as well.

I have not been able to get anything larger than 32MB to work at all on my DOS card.  I've experimented pretty thoroughly with that... any module smaller than 32MB works fine, nothing larger works at all or is only recognized as 32MB.  Seems like a pretty hard limit but I don't have any single...

I did the full '040 and overclock mod on mine and it has been working perfectly for several years now.  I did add a 468 heatsink and fan to the '040 chip - I think that's a must.  Huge improvement, I have no regrets and the DOS card seems to be unaffected. Seems like I also upgraded the 486...

I have also done many boards with 16v caps.  Zero failures that I can attribute to the components themselves - plenty that are directly my fault but that's another topic. I'm curious if there is a true risk in doing this... what is the exact time before failure can occur?  Are we talking...

Just the upgrade to a color screen could make it worthwhile but it depends what you're using it for.  A Color Classic has been near the top of my want list for as long as I've been a Mac user... one just hasn't shown up locally.  Realistically though, for me, my LC550 fills that hole and then...

So I tried DVI... and it defaults to 1920x1200.  Great!  However... it does not work well.  Sometimes I get a distorted, static colored section on the right side and some programs that attempt to switch resolutions or screen colors crash hard and lock up the whole machine.  Some others make the...

I ran across a Soyo 24" LCD monitor a while back and finally got it fixed (bad cap in the power supply) and it would sure be cool to use it with my beige G3.  I got it all hooked up last night and have discovered that I cannot get it to display the native resolution (1920x1200.)  It will display...

Have you moved the video card to a different PCI slot? Kinda sounds like a video card failure... do you have another one you could replace it with?  I'm assuming you've tested the monitor with a different computer and it works fine there?  PRAM battery is not required for it to boot.

These are in somewhat rough condition so I figured I'd risk it... They were very dirty and had leaves, dead bugs, etc all over them. I don't think water alone would have cut it. I really rinsed them and blew the excess liquid off with compressed air. In any case, I recapped LC board #2 this...

I washed the other three boards with dish soap and water, rinsed with distilled water and flushed with denatured alcohol last night.  Took them into my lair and recapped one of the LC boards - works great now!  Maybe this weekend I'll have time to recap the other two and wash the first one...

Well... good news!  I was quite surprised that all four of these fired right up.  Three power supplies were dead, two hard drives spin up and then spin down, one won't spin at all, one works fine.  All of the logic boards have some rust on/around the output ports and all are filthy and need to...

I keep thinking I'm done, I'll never score anything again, it's all over... and then I run across something cool. First score was actually like a few months ago, I picked up a IIcx, a couple small Apple monitors and some peripherals, all unknown condition for 10 bucks.  IIcx was DOA, battery...

I can't imagine why it would be worth making 4MB SIMMs.  Even 16MB SIMMs are not *that* expensive, relative to what a lot of us spend on this hobby.  4x4MB sticks are readily available on eBay for less than $30... not worth the hassle to roll your own. It is a cool project though and certainly...

It would be a shame to trash the logic boards in those, especially since they can be used with ATX power supplies.  The cases I can understand, I have pitched a lot that were falling apart too.  These were just such nice machines and great for hackintosh purposes.  They were also not known for...

I have had dozens of pizza box LCs of every variant over the years - the ONLY one that has a PRAM battery quirk is the 475.  Turn it on, wait for the chime, flip it off and back on again quickly and you're good to go.  NONE have done anything past simply not holding the date/time/etc.  None. I...