Thread
Quadra 605 RAM
Ahhhhhh finally 
http://www.danamania.com/tmp/605_ram.jpg
Dana (thanks to Samantha for the pair of 128MB simms!)
http://www.danamania.com/tmp/605_ram.jpg
Dana (thanks to Samantha for the pair of 128MB simms!)
:O 8-o :O
As ever, an inspiration.
BTW, Dana: Is Danamania.com as it used to be coming back any time soon? It's been one of my favourites over the years.
BTW, Dana: Is Danamania.com as it used to be coming back any time soon? It's been one of my favourites over the years.
Now all we need is to find out that the Quadra 800 or 840av can take 128mb simms, and can address all 512mb of ram that would result. "yaay!" would ensue.
OMG 7.1 uses 10MB of RAM!!!
Well this way, you can run IE4/OE4, AIM4, Word5, Excel 4, QuarkExpress 4, PhotoShop 4, etc etc etc, all at the same time. 
128MB is plenty for any Quadra, don't forget some of the PPC mac shipped with 8MB.
That is kind of surprising. Dana, what extensions are you running on that Quadra that make it take 10 MB of RAM for System 7?!
Peace,
Drew
7MB of disk cache
Dana
of course!
That would do it! Why rely on the drive's on-board cache when you can cache it all in the System heap?! ;-)
Peace,
Drew
Peace,
Drew
Scary :O
Now... boot OS X on it! 
Very nice though, it's the equivalent of your Mac Pro in 1992. Complete overkill for standard tasks, but very cool and capable.
Very nice though, it's the equivalent of your Mac Pro in 1992. Complete overkill for standard tasks, but very cool and capable.
wow ill bet tht screams!
And now you know why System 7 sucks on a 68000 based machine. Even a stripped configuration eats up all the RAM. Even taking Dana's 7mb cache setup into consideration, System 7 is still a pig on early Macs.
I know if 32 bit addressing is off and you have more than 8 MB of RAM it will appear to eat all of the extra RAM.
On a 4 meg machine that doesn't leave you much breathing room, and it gets worse with later versions of 7.
Won't work. In fact in the 840AV SIMMs larger than 32MB are seen as 1/4 their rated capacity. In the 800/650/610 they are seen as half their rated capacity, so it is possible that installing 128 MB SIMMs might get you 64 MB of capacity per slot.
I did some extensive experiments a while back and posted them either here or on Applefritter. A search here doesn't turn it up, so I must have posted on Applefritter.
The 7100 and 8100 behave like the 840AV and 660AV in that they treat larger SIMMs as 1/4 capacity. The 7100 and 8100 have an extra logic chip between the memory controller and the SIMM slots, which screws up the support for larger SIMMs seen in the 6100.
Now you just need a SIMMDoubler so you can install *two* 128MB SIMMs in your Q605.Ahhhhhh finally
http://www.danamania.com/tmp/605_ram.jpg
Dana (thanks to Samantha for the pair of 128MB simms!)
Of course with the doubler sticking up, you can't really close the lid...
Too true. No 32-bit addressing, for starters, so forget Mode32. CFM-68K crashes it. Retrofitting of AppearanceCDEV and its Extension gives irremediable address errors. And on, and on. A couple of wasted days in outcome, but a fair degree of learning in my recent/current resuscitation of a rather nice 4MB (80ns, to match the RAM on expansion card and MLB) Classic 'Rev. B' whose only fault is an apparent need for resoldering of the video-in card's connections to the CRT. After several hours of use, or in a Summer ambience, the 3:1 chequers appear at restart, and all further startup activity ceases. No chime. No nuttin'.
But there is one happy note: it will run TattleTech 2.59, which is useful if not as complete as 2.84 on later Macs.
de
Unless you retrofit a IIsi lid on it....Now you just need a SIMMDoubler so you can install *two* 128MB SIMMs in your Q605.
Of course with the doubler sticking up, you can't really close the lid...
Thankfully someone helped you with the RAM and turning on 32-bit addressing. That's all it was. Also, System 7 was awesome with 680x0 machines. It sucked on PPC boxes since it and all the apps ran in emulation. I can't believe all the erroneous posts on this board.
FYI I owned a 605 and you can overclock it by unsoldering and switching two surface mount resistors on the underside of the logic board. I did it safely. You might not want to try. The information might not be available. And I have forgotten the resistor locations. But you can do it.
FYI I owned a 605 and you can overclock it by unsoldering and switching two surface mount resistors on the underside of the logic board. I did it safely. You might not want to try. The information might not be available. And I have forgotten the resistor locations. But you can do it.