Will more RAM help handle large Excel files?

Hi everyone,
I know this message may be better suited to the Office for Mac Forums website, but the site hasn’t been able to validate me as a new user so far (it's been weeks of trying!), and I’m therefore unable to ask a question. So I have to resort to annoying you here.
I run Excel 2008 (12.1.7) on a 8-core Mac Pro (early 2008) with 6 Gb of RAM (OS 10.5.6). I encounter a lot of problems working with big files, such as a 385 Mb file comprised of over 600,000 row and 50 columns of mostly data (only a few columns are filled with simple formulas).
After loading the file (which took quite a while), the Activity Monitor indicated that Excel was using 1.12 Gb of Real memory an 2.11 Gb of Virtual, while 3.66 Gb of RAM was free. When I then attempted to create a PivotTable with this data, the amount of memory used by Excel gradually rose to 1.94 Gb of Real an 2.93 Gb of Virtual (2.85 Gb of Free memory was still available) while reading the data. At this point I then got a message stating that there’s not enough memory. I had to resort to breaking the file up into smaller ones to analyze the data, which is quite annoying.
I was told that being a 32-bit application, Excel 2008 was limited to handling 4 Gb of RAM. But I thought that 4 Gb being way more than the size of the file on disk, and having 6 Gb of RAM on my machine, I shouldn’t have any problem working with it. Obviously I was wrong. Can someone please clarify what’s going on here? Would more RAM significantly help?
Any help will be greatly appreciated. Thank you!

Yes, I bet the Windows version of Excel is better. I think it’s definitely time to try it.
When you say “having 8 DIMMs”, do you mean filling up the 8 memory slots, or having 8 Gb? I believe I remember seeing that 10 Gb was the sweet spot, with all 8 memory slots occupied. Is that right? And what brand of RAM do you like currently, still OWC?
Thank you Hatter.

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Will more RAM help?

Hi everyone,
I read that a good indication of whether extra RAM would be beneficial is to look at Page Ins and Page Outs on the Activity Monitor System Memory tab.
So… here's what it says:
I've got a 17" MacBook Pro, i7 processor, Mid 2010 model currently with the standard 4GB ram.
Want to go to 8GB, will replace both modules as I have heard it's best to have two modules of the same brand.
If it's worth doing I would buy them here:
http://www.crucial.com/uk/store/mpartspecs.aspx?mtbpoid=DFA12F1EA5CA7304
So, my main questions:
• Given the info above would it boost performance (I run some pretty heavy apps, iPhoto (large library), Aperture, Illustrator, Pixelmator, iTunes. iMovie, Dreamweaver and often have quite a few open!
• Are those modules that I linked to OK? I know it sounds daft but they are sooo much cheaper than the Apple ones I'm suspicious that there may be a reason (other than Apple wanting to make a tidy profit!)
Thanks for any help in advance,
Phil
www.misterphil.co.uk

Ok - so RAM arrived today from Crucial, fitted it in about 10 mins, no problems.
Machine did perform excellently already, or at least so I thought…
It's now running on Turbo, like someone has greased everything!
Well worth the £73.15 which included courier to Spain, 3 day delivery.
So for those interested in comparison, here's before and after (only been on for a couple of hours but still no Page outs)
Before:
After
Thanks for all the advice, seems to make much more sense to spend the extra on the processor with Apple and then do the memory yourself…

Will more ram increase my performance?

I'm running Logic Pro 7.1.1 on a Powerbook G4 1.67 with 1 GB of ram installed running a fair amount of sample libraries and effects. When I check the Activity Monitor under system memory I get the following:
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i'm always careful in wholeheartedly saying 'yes' when people ask if more RAM will give more performance.. while of course it will in almost every case help things along, sometimes quite dramatically, I think it's important to be realistic about what it actually does.
it's easy to have the misconception that more RAM = more plug ins on some kinf of linear scale -- I had 2GB, so now with 4GB I should get something like double the performance, right? just as long as you're clear why this isn't the case, then that's the main thing.
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I need to sort very large Excel files and perform other operations. How much faster would this be on a MacPro rather than my MacBook Pro i7, 2.6, 15R?

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Grant Bennet-Alder,
It’s funny you mentioned using Activity Monitor. I use it all the time to watch when a computation cycle is finished so I can avoid a crash. I keep it up in the corner of my screen while I respond to email or work on a grant. Typically the %CPU will hang at ~100% (sometimes even saying the application is not responding in red) but will almost always complete the cycle if I let it go for 30 minutes or so. As long as I leave Excel alone while it is working it will not crash. I had not thought of using the Activity Monitor as you suggested. Also I did not realize using a 32 bit application limited me to 4GB of memory for each application. That is clearly a problem for this kind of work. Is there any work around for this? It seems like a 64-bit spreadsheet would help. I would love to use the new 64 bit Numbers but the current version limits the number of rows and columns. I tried it out on my MacBook Pro but my files don’t fit.
The hatter,
This may be the solution for me. I’m OK with assembling the unit you described (I’ve even etched my own boards) but feel very bad about needing to step away from Apple products. When I started computing this was the sort of thing computers were designed to do. Is there any native 64-bit spreadsheet that allows unlimited rows/columns, which will run on an Apple? Excel is only 64-bit on their machines.
Many thanks to both of you for your quick and on point answers!

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My iMac is 2010. Over the last 3 - 4 months its started to slow down a bit. I realize sometimes thats just the way things are but I am wondering if there is anything I can do to help. It seems that everything is a bit slow on startup/wakeup. It takes about 5-10 seconds for things to get rolling, that doesn't bother me that much, I can handle it, just pointing out that is different from 3-4 months ago. Once things get rolling its fine.
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Will more RAM help handle large Excel files?

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