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Eug Wanker · May 5, 2005, 02:53 PM

I'm getting a G5 2.0 iMac 20" and I'm wondering what the RAM timings are.

I want to add a 1 GB stick of RAM and the cheapest name brand RAM I can find is Samsung PC3200 CAS3. I suspect it will be fine even if Apple ships with CAS2.5 RAM, but I just wanted to ask to make sure. In the meantime I'll look around to see if any inexpensive CAS2.5 1 GB RAM sticks exist.

screamingFit · May 5, 2005, 06:28 PM

99% sure they ship with CAS3 sticks.

Hodog16 · May 5, 2005, 10:57 PM

I'm kind of new to this RAM-lingo. What exactly happens if you use the different timings (2.5 versus 3)?

Also, would there be any noticable difference between 1.5 GB and 2 GB of RAM on a new iMac?

Thanks in advance.

James41 · May 7, 2005, 02:21 PM

Originally Posted by Eug Wanker

I'm getting a G5 2.0 iMac 20" and I'm wondering what the RAM timings are.

I want to add a 1 GB stick of RAM and the cheapest name brand RAM I can find is Samsung PC3200 CAS3. I suspect it will be fine even if Apple ships with CAS2.5 RAM, but I just wanted to ask to make sure. In the meantime I'll look around to see if any inexpensive CAS2.5 1 GB RAM sticks exist.

Check out Newegg.com, they have some Corsair ValueSelect pc3200 400 mhz cas3 1 gig sticks of ram for only $95. Great deal on quality ram with lifetime warranty. Works just great in my PowerMac G5 2.0 and also works great in my iMac G5 1.8

James41 · May 7, 2005, 02:50 PM

Originally Posted by Hodog16

I'm kind of new to this RAM-lingo. What exactly happens if you use the different timings (2.5 versus 3)?

Also, would there be any noticable difference between 1.5 GB and 2 GB of RAM on a new iMac?

Thanks in advance.

It will probably work, but at the cas3 rate

You probably won't see the difference, but yes things will work a bit better. The Mac caches things so it can always use more ram. If you were into some heavy video editing then you might see a little faster compile time. But you won't see difference in 1 1/2 to 2 like you will from 256 to 1, now there is a difference you can see... At 256 when running multiple programs you will see lags and jerkeness where at 1 gig they are gone and it's smooth.