I'm not very fluent with Macs but it appears the system *does* recognize the additional memory but for some reason is not *utilizing* it. It may be helpful if you could provide the same information with the two new memory modules *removed*, i.e. what were the stats before the installation.

I'm also confused by the "Total Physical Memory 2.98 GB". If the new 8GB are being ignored, I would have thought the original 4 would still be seen/usable. However, this is saying only 3GB are available.

My first hunch is one of your original memory modules may be bad and thus causing problems. Without more information, I must admit this is purely speculation.

I suggest you try something very simple before worrying unduly. Take the memory out, make sure there is no dust on either the metal contacts or the seating, then replace it.
This fixed a problem I had when a computer developed random boot errors.

When I have computer problem, I always refer to "Yahoo! Answers", it usually solves the problem.

Just found out no bios system on Imac instead called 'Firmware'

Have to press four keys CMD/Option.O/F in that sequence. Presumably as it boots?

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It is the mark of an educated mind to be able to entertain a thought without accepting it. Aristotle

Thank you for help... much appreciated. I have now sorted it. It transpires that Boot Camp can only recognise up to 4GB in 32bit mode.

I have ordered a 64 bit Windows 7, premium addition, thus allowing me to access all the memory installed.

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It is the mark of an educated mind to be able to entertain a thought without accepting it. Aristotle

Ding dong you are on song. I think, but stand to be corrected, that you can access more of the memory with 64 bit and graphics are improved.(Is speed improved?) I am not a computer buff.

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It is the mark of an educated mind to be able to entertain a thought without accepting it. Aristotle

Ding Dong don't bang that gong. I never play computer games. For me knowledge about my computer is strictly on a need to know basis. But I think the internet is a wonderful tool and in some respects is making my personal library redundant.


I can build a house ... write a book or a poem... Milk a cow ...run a farm... give public speeches; but am lost in the technicalities of the computer world.

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It is the mark of an educated mind to be able to entertain a thought without accepting it. Aristotle

Hi Percival,

I am curious if there is a particular application that you need to run that makes you want to go through the bother of running Windows on a Mac? Boot Camp does make it comparatively easy, but it is also fragile, and there are major issues with drivers for the standard Mac hardware.

If Mac OS X and support for it are difficult to come by where you are, you might want to consider one of the desktop Linux distributions such as Ubuntu or Gentoo that have a lot of online support and are a lot less expensive than either Mac OS X or Windows.

By the way, I share your opinion of gaming on computers. Except as a fun way to gain familiarity with the keyboard and other control devices, it is a colossal waste of time and energy, IMHO. I suppose, though, we should be grateful that someone else is spending the time and energy to push the limits of performance.

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"Sometimes I sits and thinks, and sometimes I just sits." - Satchel Paige

Good question Leon and Ding. I bought an iMac and lost the comfort zone that Windows gave me. After a time I a divided the hard drive and loaded boot Camp and Windows 7. It works very well and is extremely reliable I find reliable.

Now I tend to switch between the systems, but use Windows side more often.

The only reason I increased my memory to 16 GB is that I thought it may have been the reason Google Earth distorts in street view. Now I discover that Boot Camp with 32bit Windows Seven
can only utilise up to 4GB of memory. The computer acknowledges the memory is intstalled but cannot use it. A 64 bit version of W 7 can utilise much more.


As I type a 64 bit version is winging its way through the post to me.

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It is the mark of an educated mind to be able to entertain a thought without accepting it. Aristotle

Sorry to hear that Mac OS didn't work for you. I'm glad to hear that Boot Camp is working out well. Early on there was some trouble with stability, but they seem to have that sorted now.

In another thread here, Acooperator reported some issues with the 64 bit version of Internet Explorer. Several others and I did some research and found that this is a common complaint. Although I didn't post it in-thread, I came across some performance benchmarks that show IE64 anywhere from half-again to three-times slower than IE32. Apparently Microsoft hasn't optimized it yet. :-( You might want to take a look at that thread in case you have a similar experience and want to use the 32 bit version.

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"Sometimes I sits and thinks, and sometimes I just sits." - Satchel Paige

I have now installed windows 7 64 bit. This is now my memory situation.


Installed Physical Memory 12.0 GB
Total Physical Memory 12 GB
Available Physical Memory 10.7 GB
Total Virtual Memory 23.9 GB
Available Virtual Memory 21.7 GB
Page File Space 12 GB

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It is the mark of an educated mind to be able to entertain a thought without accepting it. Aristotle

Yes I wondered that ggicollegepunjab... but that is what comes up when I access System Information.I am by no means an expert. My computer seems to be working very well.

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It is the mark of an educated mind to be able to entertain a thought without accepting it. Aristotle

My hard disk is a terabyte... partitioned equally. 12g of memory not 16. Explorer is working well... thus far.

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It is the mark of an educated mind to be able to entertain a thought without accepting it. Aristotle

He deleted his post JJ... or it was deleted for him because it was spam. I am not sure.

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It is the mark of an educated mind to be able to entertain a thought without accepting it. Aristotle