Visitors: 219
Running: Quid Pro Quo 2.1.3
Last Update: 22nd Jan 2005
Speedup
Step-by-step guide to boosting your LC475, Performa 475 or Quadra 605 to 40MHz. I was unaware
of an English site that had a method that worked. The only ones I've seen are where the clock
can't lock onto the new frequency and therefore fail to work. These mods require the use
of additional resistors. Thanks to Quadrajets on the 68kmla forums for pointing this web site out. Note Dec 04: This website seems to be offline so the link now points to archive.org
128MB SIMM info
It would be cool to have 132MB, but up till now I've not had the bottle to order a 128MB
SIMM because of only specific types working, and me not being sure which.
Bugsi provided me with the info he used when he bought a 128MB SIMM for his LC475. It turns
out that Data Memory Systems stock compatible memory - Part number DM36-004 ($65.00) or
DM60-015 ($69.00). Either will do. The SIMMs can be double sides, but must be single banked, if
you want to buy from elsewhere. I'm tempted to upgrade, but is it worth it? Probably not. Why do
it then? Coz you can. :) Even more fun can be had with the info from one of the sites
below.
Those Japanese are crazy guys eh? I was bored one afternoon, so I googled for Japanese LC475 sites and ran the interesting ones through babelfish and Google. I came up with a small list. The links to the translated sites along with my comments are listed below. There's some interesting stuff which I've not seen on any English language site. The translators do a shonky job of translating, but it gives you the gist, and in many cases there are photos accompanying the text.
How much mem?!
Addition of a slot doubler. I'd not seen these for the Macintosh before (maybe its a PC one?),
but this guy has successfully added one. Throw in 2 64MB SIMMs, and he has 132MB. Impressive,
but with the info about using 128MB SIMM's above, 260MB anyone?? :D
Faster!
Another guy who has clocked his LC475...
Faster 2
The first successful 40MHz speedup that I found. This one involves replacing a part with a
higher-rated one from from a Centris 650. It seems to work OK though, and he's even dared
go over 40mhz!
Silver
This guy has painted his a rather cool silver. Very nice!
475 server
A chap running an LC475 as a web server. Utilising a 64MB SIMM. Some nice screenshots of
desktop setup & memory usage.
10 inch Pizza!
This guy has made his Pizzabox even smaller! Only a 10" now! :)
40MHz speedup
A guy who has performed the clock speedups. Click at the bottom of the page to see to 40MHz
info.
40MHz speedup 2
Another method for a successful 40MHz speedup.
Two nice mods
This chap has got a 128MB SIMM in his, and (I think) was trying to add a 64MB SIMM in a slot doubler. Also he's modded it to fit a modern fast IDE hard disk.
More colour
Another painted 475, this time black. Not as cool as the silver imo!
A very nice 475..or is it LCIII!
Wow. Nice setup. This guy has an external CD Writer and disk drive attached. He's chipped it to 40MHz and added
a pretty nice cooling system, for which he needed a different front plate: hence the LCIII plate! He's also modded the video for RGB. Sweet!
This LC475's benchmark results
Quid Pro Quo 2.1.3 Quid Pro Quo 2.1.3 compressed with MacLHA. Great 68k Macintosh web server software. This machine will be running it again soon! This is the last version that was released before Social Engineering disappeared off the face of the planet. AFAIK, its not available to download anywhere else.
The 68040 processor - part 1 - Design & implementation
Part one of two articles from the IEEE's journal 'Micro'. Interesting stuff.
The 68040 processor - part 2 - Memory design & chip verification
Part two from the IEEE's journal 'Micro'. Interesting stuff.
Stats
Visitors: 219
Running: Quid Pro Quo 2.1.3
Last Update: 22nd Jan 2005