Stacy J. Dunkle wrote:
>>
>>
>>>
>>> What I'm curious about it, given the 50mhz system bus bottleneck on 
>>> the 9600, how will the upgraded 9600 running OS X perform compared to 
>>> the above mentioned iMac I used previously? (I plan to have at least 
>>> 256MB RAM in the 9600, maybe more.)
>>>   
>>
>>
>> Get more memory.
>>
>> With more memory, the 9600 will probably feel faster than the G3 in 
>> many respects, slower in others. The 800 MHz G4 will help. If you get 
>> a fast ATA card and disk, that will help as well.
>>
>>  
>>
> For memory, it's coming with 128, and was planning to get an additional 
> 128 for it, but I think I'll go ahead and get 2 more 128 sticks, so I 
> can start out with 384, as per the advice I've been getting, and I'll 
> keep adding on from there about every month. I'll already be dumping a 
> pile of money into this thing at first, so I'm going to try and take it 
> easy after the initial splurge. ;-)
> 
> Speaking of memory, what is this interleaving thing I keep hearing 
> about? I read one place that said it can give a 5-10% increase in 
> performance, but didn't go into detail about what it actually is.

You have , iirc, 12 ram slots on your machine, labelled A1-F1, and 
A2-F2. If matching DIMMS are placed in matched slots ie: A1-A2, B1-B2 
your ram will be 'interleaved' and accessed somewhat faster than if not.

With absolutely up-to-spec memory (like what you're likely to get) this 
does work, thousgh many people have noted increased crashiness. Some 
reports have said that de-interleaving the memory with fast processors 
(like the G4/800 you're getting) helped.

RAM is a really tricky thing to diagnose problems with, so the best I 
can suggest is try it and see..

> For the hard drives, I plan on getting an ATA-133 card. I plan to use 
> the 4GB SCSI Seagate Barracuda that I had wedged into my old 6100, as 
> the drive for the OS, and a 40GB Maxtor hooked to the card for 
> everything else.

You'll get better performance with the boot partition on the Maxtor. 
OSX, like any Unix, does a LOT of disk access.

Now, you will have to partition the 40GB drive so that OSX is installed 
in the first partition, which needs to be smaller than 8GB. I have 
nearly the identical setup, and have a boot partiton of 7995 MB, with 
the remaining ~30 set up as user disk space.

You can move /Users to the 30 GB partition following the instructions 
here, leaving the boot partition for the System and Applications only.

<http://www.bombich.com/mactips/homedir.html>

> Shouldn't Sonnet's own software take care of this?

It should, and if the G4 card ships with the Sonnet OSX enablers(as I'm 
pretty sure it does), then by all means, use them, just don't *buy* 
theirs if you have to.

XPOstFacto 3 is supposed to include cache management, as well as 
enabling it quite early in the boot process. With L2 Cache Config, the 
cache is not enabled until login time, making for significantly longer 
boot times on unsupported systems like your 9600.

There is an Unsupported OSX list on LowEndMac:

<http://lowendmac.com/lists/unsupported.html>

-- 
Bruce Johnson
University of Arizona
College of Pharmacy
Information Technology Group

Institutions do not have opinions, merely customs




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