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You are here: MacNN Forums > Enthusiast Zone > Classic Macs and Mac OS > Rev B iMac & OS 9

Rev B iMac & OS 9
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PhilBanton
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Dec 22, 1999, 08:21 AM
 
I have 96Mb of RAM installed, there are number of the new features within OS9 that I would like to make use of. Would a memory upgrade be required, without an memory upgrade would there be a significant drop in performance ?
     
Seagull
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Dec 22, 1999, 10:25 AM
 
I think your configuration is perfectly fine to run Mac OS 9. On machines with 32MB of RAM, virtual memory must be turn on and it has to be at least 40MB, it cannot be turn off. On machines with 40MB of real memory or more, once virtual memory has been turn off, Mac OS 9 use about 32MB of RAM leaving the rest to run applications.
I have a Mac with a PPC 603e/225MHz with 48MB of RAM, if I turn off virtual memory, there is not enough memory left to run many applications so I turn it on to 49MB and so I have a lot of memory to run applications and not noticing much obvious speed decrease.
     
Mac Enthusiast
Join Date: Nov 1999
Location: San Marcos, CA
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Dec 22, 1999, 04:45 PM
 
I have it installed on a RevC iMac w/96MB of RAM and it actually seems "zippier" than when it had 8.6 on it.

NOTE: You're milage may vary and actual driving conditions will effect performance!


CG

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Dedicated MacNNer
Join Date: Oct 1999
Location: Cookeville, Tennessee, USA
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Dec 23, 1999, 04:38 PM
 
I have the exact same setup running OS 9 without too many glitches. Biggest problem seems to be with USB. Some hubs don't much like the new drivers. My MacAlly hub had to be replaced. Asante's USB hub has performed flawlessly. Have had trouble with USB Zip,and with Epson 740 printer. Search the arcives here for posts by me and you can find which parts of the Epson driver need to be uninstalled after upgrading to OS 9. I'm not at my iMac right now so I can't quite remember.

Hope this helps.
     
AJ
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Join Date: Oct 1999
Location: UK
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Dec 23, 1999, 05:31 PM
 
I have the rev C iMac, 96mb, and with multiple users on, it seems to be VERY slooooow...for example, menu's take upto 1.5secs to open etc...I was very disapointed. However, without multiple users, it seems to be a little bit quicker in day to day operations than 8.6

Can anybody help me with the performance of multiple users?

My advice...get it, but don't use multiple users...have fun...

Merry Christmas
AliJ
     
Grizzled Veteran
Join Date: Sep 1999
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Jan 4, 2000, 03:23 PM
 
Seagull,

Buy some memory! 128 of it! So you really can run some apps!

Netscape 4.7 will use 32MB if it has it, and IE 4.5 likes more for better performance.

Eudora Pro or OE use 7MB+

I was thinking that with Word, IE, OE, a graphics program open, PageMill, or if I need to have IE and Netscape and PageMill open at once... that 256MB isn't enough, or that OS X will eat more.

With VM off my system uses 55-60MB, 40MB with it on. Luckily, no difference in performance off or on.

In 1988 1MB cost $200, today that amount will buy 128MB.
     
JAG
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Jan 12, 2000, 02:06 AM
 
Dude, my iMac rev b has 96 megs of ram and takes about 16 to boot (QD 3D is off and a few others). Netscrape 4/x stand alone takes about 6 megs, Eudora Pro 4.2.2 uses 4 megs. With VM off, my Mac uses about 25 megs to boot.
I routinely run Netscrape, Photoshop 5.5, ImageReady 2, Eudora Pro 4.2.2, Newswatcher, Home Page and Virtual PC 3 at the same time.
     
Rev B UK
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Jan 16, 2000, 02:33 PM
 
not only do menus often take a while to load, if there is an alias to a folder in the documents folder, even if it is your own and you are the owner, sub menus do-not work.
Also, does anyone know how to set up access from OE 5 so it does it automatically? The read-me talks about the Users folder on the HD, but the owner does not have one, so where should the identities folder/file go?
     
   
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