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Home Forums Mac IIfx - Time stands still — #2 Mac IIfx - Time stands still — #2
Post #2 by firebottle
Source ForumMac IIfx - Time stands still — #2
CategoryTroubleshooting
Post DateFri, 4 May 2012 - 20:15
Original URLhttps://68kmla.org/bb/threads/mac-iifx-time-stands-still.25307/
Post
Found out something interesting...

There are at least two different IIfx boards.

One is labeled "820-0282-03" and has the designers' names on it.

The other, the one I just pulled out and a spare I have of it are labeled "820-0282-B". No list of names on this one.

The "03" board has solid caps at C24 and C9. The "B" board has the metal-can caps.

Judging from the date codes on the Memory Controller chips, the "03" board is an older revision. "8948" vs "9122".

The newer board has a few minor additions and subtractions, like the jumpers at J106 & J103 are missing. Power connector pads at J8 on the older board are gone.

I can take a photo or two upon request.

mp.ls