Has anyone upgraded from 4gb to 6gb ram?

[auhlixer]

I have a 2.4ghz MacBook that I run Fusion on for AutoCad and on the OS X side of this gets bogged down.

Also know that having a 2gb/4gb combo will disable dual channel so those who have upgraded to 6gb have you seen a improvement and is it worth it?

Currently running Windoze 7 Ultimate 64bit for AutoCad 2010 64bit w/ 1gb ram allocated for it in VMWare w/ 3D turned off. This leaves me 3gb for OS X but i have to have Mail, RSS Reader and iTunes turned off.

Any suggestions?

[Mpulsive81]

I'd say for your application, 6gb would be beneficial. The benefit of running dual channel is trumped if you're hitting swap files because you've got so much going on.

Here's a good read on running 6gb:

http://forums.macrumors.com/showthread.php?t=607076

If you're considering going 6gb, I have a stick of 4gb pc2-5300 667MHz up for sale in the marketplace. I upgraded mine from 4gb to 6gb, which is perfect. Before the upgrade, I was really getting close to my max (running VM, mail, safari, adium, & iTunes) but now I have more breathing room and things run more efficiently. Plus my fan doesn't come on nearly as much, which is an added bonus to my battery life :)

[Craiger]

I'd say for your application, 6gb would be beneficial. The benefit of running dual channel is trumped if you're hitting swap files because you've got so much going on.

Here's a good read on running 6gb:

http://forums.macrumors.com/showthread.php?t=607076

If you're considering going 6gb, I have a stick of 4gb pc2-5300 667MHz up for sale in the marketplace. I upgraded mine from 4gb to 6gb, which is perfect. Before the upgrade, I was really getting close to my max (running VM, mail, safari, adium, & iTunes) but now I have more breathing room and things run more efficiently. Plus my fan doesn't come on nearly as much, which is an added bonus to my battery life :)

How does memory affect the fan speed that much?

[Mpulsive81]

I'm guessing it's because my system isn't having to work as hard juggling everything when I'm running a lot of applications at the same time (since all my memory isn't tied up anymore). You can never have too much memory!