Quadra 605 RAM

[Danamania]

Ahhhhhh finally

http://www.danamania.com/tmp/605_ram.jpg

Dana (thanks to Samantha for the pair of 128MB simms!)

 

[Patrickool93]

:O 8-o :O

 

[beachycove]

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.

 

[Cory5412]

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.

 

[Flash!]

OMG 7.1 uses 10MB of RAM!!!

 

[Cory5412]

Well this way, you can run IE4/OE4, AIM4, Word5, Excel 4, QuarkExpress 4, PhotoShop 4, etc etc etc, all at the same time.

 

[Unknown_K]

128MB is plenty for any Quadra, don't forget some of the PPC mac shipped with 8MB.

 

[alk]

OMG 7.1 uses 10MB of RAM!!!

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

 

[Danamania]

Dana, what extensions are you running on that Quadra that make it take 10 MB of RAM for System 7?!

7MB of disk cache

Dana

 

[Flash!]

of course!

 

[alk]

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

 

[LCGuy]

Scary :O

 

[iMac600]

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.

 

[gobabushka]

wow ill bet tht screams!

 

[Quadraman]

OMG 7.1 uses 10MB of RAM!!!

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.

 

[Mike Richardson]

OMG 7.1 uses 10MB of RAM!!!

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.

 

[Danamania]

And without the disk cache.

http://www.danamania.com/tmp/lessram.jpg

Dana

 

[Quadraman]

And without the disk cache.
http://www.danamania.com/tmp/lessram.jpg

Dana

On a 4 meg machine that doesn't leave you much breathing room, and it gets worse with later versions of 7.

 

[trag]

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.

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.