The main processor(s) and MC68882 may operate at differant clock speeds. Click to expand... Ha!

No it needs to match the CPU's clock speed, so it should be a 25 not 16 like that one is. Also don't expect a big performance boost from it.

so something like http://cgi.ebay.com/Motorola-MC68882-68882-co-processor-FPU-cpu-MC68882FN16_W0QQitemZ220347416031QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item334dbabddf&amp…

OK... if i want to add an FPU, what should I search for on eBay? Click to expand... 68882

OK... if i want to add an FPU, what should I search for on eBay?

I cannot imagine that it´s a prototype, because it was used by a big press agency here in Austria. On the other hand this could make it possible that it´s an verry early machine. T…

The LC III shouldn't be picky on the type of RAM, as long as it's a 72-pin SIMM and isn't ECC. However, I believe that the only type of VRAM you can use is one that is marked "LC …

Nice. I keep track of a few websites in the hope of getting lucky someday.

Analog board checks out, so my repair there was a success. Unfortunately the logic board is toast... me and Wackymacs on IRC, with his copy of Larry Pina's book handy, were unab…

slot-loader / electronics {+} IIci's / cases are nice and clean Click to expand... + cryogenius's ATX power supply and VGA out hacks = two working Macs with modern* guts in vi…

It seems like the seller was having some work done on his house, so he was clearing out old stuff he no longer needs. These items had been in storage for years. It was just a local…

And thus dies my idle thought of a 700MHz transplant ...

Have you done an in-depth study of where hot air stagnates inside the case? Click to expand... Can't say that I have. In brief, air flows in under the HD at front-left, and ou…

Hi Nick - how goes it Just to confirm: - iMac slot-loading 350 - 500Mhz (ceramic CPU) have interchangable logic boards - iMac slot-loading 500Mhz - 700Mhz (IBM 750CXE G3) aka…

This throws me a bit ... are you saying the FDD continually spins up and down? But if you remove the logic board, how can the sound continue if the FDD is no longer connected? If …

Yeah, its for a ROM SIMM. All LC475's have those solder pads for it, but I've never seen an LC475 with the actual slot, I'd say that as Gil said, it may have only been in prototype…

what kind of ram/vram? IE: 72 pin 45v blah blah blah SIMMM

It has the documented "FLUP FLUP FLUP" noise (the floppy drive sound) when it tries to power up. It's like it's in a constant loop of powering up and powering down and the FDD spin…

The LCIII has 512KB of VRAM standard, soldered onto the motherboard, which cannot be removed, which gives you either: Up to 16 bit (Thousands) of colours on a 12" monitor at 512x3…

I'm still kicking myself I didn't bid for the CAMMjet I sold for work last year. /ouch /ouch /ouch Here's an article I found through LEM which may be of interest: How Does Ubuntu…

Very nice job, 4season! Be proud of the success you have accomplished. Just keep practicing with those type of skills and they will get you someplace in life. I guess that Class…

I figure i'll get better results if i post here. According to Mactracker, the LC III had 1 ram slot. If this is the case, what is the other slot that looks like a ram slot? EDIT:…

Thanks for the link, it's been snagged and I'll peruse it offline! As far as "feisty fawn" or the "jaunty whatever" that alk is trying to get up and running over on 'fritter, I th…

The term 'flupping' was originally coined as a specific appellation for a specific diode-related fault in the PAB of early Macintosh models, a fault that may precipitate capacitor …