Anyhoo, an LC makes a good sacrificial Mac for testing unknown componetry. I would never plug a rummage sale or thrift shop HD into one of my main Macs. The LC makes a great little solider that is willing to throw its little pizzabox onto a fried peripheral grenade.

G4From128k

by Day: Mild-Mannered Engineer and Trapeze(tm) Artist
by Night: Colonel of Truth, Justice, and the Macintosh Way
Reserve Officer in 68kMLA Cantankerous Coot Contingent

EDIT: just checked Apple Spec. There was a the 6300 series that had the same flat, pizza box form factor as the Quadra 630, but used 168 pin DIMMs. But AFAIK, every Mac that used DIMMs was a PPC.

LOL! that's funny

Here's what I reckon is in the photo...

Starting from the top left - LC or LCII mobo, below that is a floppy and a LC-PDS network card (coax). Below that is a 90 degree adaptor which will more than likely have a FPU on it. It suits Quadra 610's I think. Attached to that is a NUBUS network card, but you could swap that for any other card. At the bottom we have the graphics card and the RAM, and another network card in the centre. I'll go with the others re: the PPC board. The other board (middle, right hand side) looks like a Centris size board, but no 040 processor. So it's got to be a 6100 or something

The network cards are next to useless, but the rest of the package looks OK.

Heh, just looking at the photo again.... I reckon the NUBUS adaptor plus network card on the left match with the 6100 mobo on the right (I'm convinced it's a 6100 now)

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A little knowledge is a dangerous thing, but it sure beats a blank stare for starting a conversation.