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No worries. I once blew the bus on my original //e by reinstalling a couple chips that blew on a Saturn 128KB memory card, then installing that into the computer. So, we all have done that before. Typically, the 74LS05 chip is the one that I've had the worst luck with on the controller cards...

I do notice that the disk ][ controller card is installed backward on your 32KB ][ Plus board... That could cause weirdness right there, if you've been testing with it positioned that way.

I'd create an account over at audiokarma.org and ask there, if no one here has experience with it. That site is the 68kMLA of the audio equipment world.

You can even use it in Copy II Plus 9.x.

How new is that PRAM battery? Looks like an older Saft. I assume you've tried the quick flip with the power switch trick, where you turn it on, then quickly cycle the power again?

Remember that the IIsi and the Wombat board machines (Centris 650, Quadra 650/800) use different video circuitry as well. Which adapter are you using? If it's a Sony MacView LX, try putting it into VGA mode. That may cause it to work normally. I know that when I had said adapter set up for a...

Both items have been picked up. Need to swap the video card into the IIfx, so I can get that working.

Conquesting a Radius PrecisionColor Pro 24xk for the IIfx either tomorrow or Thursday. May also be grabbing another M0116 keyboard. Same seller who I dealt with last month

Likewise, @ClassicGuyPhilly.

Nice score. For those interested, here's where Apple was located in the Seattle, Washington area at the time, this copy of PageMaker was sent to the owner: https://maps.app.goo.gl/DaD8hdxfuxMLDpgn7

Another good choice for a period correct setup... M1298 and M0116, with the correct A9M0331 mouse.

Is the donor analog board any good? If so, just reattach the fan, recap the board, reinstall the hard drive molex connector, then use it.

It does sound a bit off. Almost like there's a bearing going bad. Or, the motor is spinning too slowly.

Worked under 6.0.7 on my original IIsi.

IIRC, on the IIsi, you have to do command-option-power to get into Macsbug or the built-in debugger. It's been a while since I did it on a IIsi or similar Mac. Majority of my 68K machines have had the programmer's switches installed.

^IIfx has only two electrolytics that are present on some of the boards. The remaining boards already had tantalum caps on them. Attached is a pic of one of the electrolytic cap IIfx boards.

Interesting, since every SE, SE/30, etc, I see, came with a red stripe cable, if it uses a FDHD drive, or a later black label 800K drive.

The ROM 4 version would've come out with the internal Sony MP-F75W floppy drive, probably a hard drive, etc... It would've been lacking in power, compared to the Mac, Amiga, Atari ST, etc, but would've been better than it was. Anyway, conquested three floppies and four Apple Microphones from...

No, the J25 jumper was not shorted. So, there's something incorrect about the schematics. Try installing the 800 board in a IIvx or C/Q650 case, without J25 connected, but with DS1 present. If it still reports as a Q800, then, maybe someone modified my board, but it should not have then...

I was the one telling you that. If neither is populated, it reports as a Q800, just like if you have the jumpered LED connected. If only DS1 is present, then it reports itself as a Q650. Now, it's possible that the Q800 board I had in 2014 was a weird one, but that's how it responded when the...