How to upgrade Ram for Leopard?


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How to upgrade Ram for Leopard?

Postby Student » Thu, 24 Jan 2008 06:18:58 GMT

I have a G5 IMac running system 10.3.9. I intend to upgrade to Leopard 
after 10.5.2 is released. 

My IMac has has 512 Megs of Ram. All in one slot. (One slot empty.)

I am unsure about how much additional Ram I should add.

1) One option is to fill the empty slot with 512 Megs for a total of 1 

2) I could replace the 512 Megs with 1 Gig and leave one slot empty.

3) I am not sure if I can leave the 512 as it is and add 1 Gig in the 
empty slot.

I do not use applications which make large demands on Ram. Also, I am 
not concerned about the price difference between a 512 Meg and a 1 Gig 
memory module.

I appreciate any advice.

BTW I did google the question. That is what makes me believe that 1 Gig 
of total ram will be sufficient. However, I am left confused about item 
3) above.

Again, thanks for any response.


Meerkat1at charter nofooling dot dot net xxx

Re: How to upgrade Ram for Leopard?

Postby Michelle Steiner » Thu, 24 Jan 2008 06:47:52 GMT

In article < XXXX@XXXXX.COM >,

Yes, Item 3 is possible.  You could also remove the 512 and add two 

You can never have too much RAM. <g>

Support the troops:  Bring them home ASAP.

Re: How to upgrade Ram for Leopard?

Postby Gregory Weston » Thu, 24 Jan 2008 07:29:16 GMT

In article < XXXX@XXXXX.COM >,

It appears you can, based on a little looking around. You'll suffer a 
theoretical performance hit; I have no idea how significant it is in 
real world use.

Unless your usage pattern is to turn on your machine in the morning, 
launch your e-mail client, check mail, and turn off your machine, 
there's really no such thing as wasted RAM in an OS X box. Anything you 
have will either be used as transient storage for running apps or disk 

My advice: Go to, tell them what kind of machine you 
have with the little popup controls on their home page, and buy 2GB for 
your machine. It'll run somewhere between $120 and $130 and you won't 
regret it.

Crucial's rarely the cheapest source, but they're among the most 
reliable and have excellent customer service in the very rare occasions 
when something goes awry.

Re: How to upgrade Ram for Leopard?

Postby The New guy » Fri, 25 Jan 2008 00:28:28 GMT

In article < XXXX@XXXXX.COM >,

With the price of ram being so cheap just get 2 x 1gb sticks and be done 
with it.  You're only looking at a price difference of $20-25 between 1 
and 2 gb.  Unless you don't know where to shop of course.

Re: How to upgrade Ram for Leopard?

Postby Eric Lindsay » Mon, 28 Jan 2008 09:10:19 GMT

In article < XXXX@XXXXX.COM >,

I have an iMac G5 (ALS). Before Leopard arrived I added a 1 GB memory, 
and left the 512 MB original memory in one slot. That gave me 1.5 GB.

Although there is a theoretical slowdown in having two different RAM 
sizes, I don't notice it in any application. This is a minimum cost 
change. Plus later you could replace the 512 MB memory with an another 1 
GB, if your demands increase (and if 512 MB extra is likely to make a 


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