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Old 07-11-2007, 09:34 AM
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Default Operating System and Ram

Reading on another thread that XP can only work with a max of 2 Ram and Vista 64bit can only work with a max of 4 Ram.

But what happens if you have MORE Ram that what the Operating system says it can work with?? I know if you didnt have enough ram the PC would struggle but too much Ram would do what???

Last edited by megabyte : 07-11-2007 at 09:34 AM.
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Old 07-11-2007, 11:13 AM
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Default Operating System and Ram

If say you put 4gigs into XP than it will only utilize 3 so the fourth wont be doing anything really apart from filling a slot
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Old 07-11-2007, 11:39 AM
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Default Operating System and Ram

So Xp could possibly stretch to 3ggs then and maybe Vista may touch 4 ggs but anything above that is just doing nothing but wasting money???

Is there an operating system which can handle/use more Ram and if not why do the boards have the extra slots or is just in case of future upgrades???

Just trying to understand this

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Old 07-11-2007, 01:27 PM
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Default Operating System and Ram

Linux can use far more RAM and with a combination of Linux and loads of RAM you got yourself a great server
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Old 07-11-2007, 08:37 PM
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Default Operating System and Ram

How come some OS's can't have a lot of RAM? On the Apple store you can put like 16GB of RAM into a full-on supermac. Is there any point in this?
I'm still learning, too. :P
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Old 07-11-2007, 11:30 PM
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Default Operating System and Ram

If you added too much RAM then the operating system would only pick up the amount of RAM it can handle.

E.G XP = Max 2GB RAM (If you put 3GB RAM in it would only appear to have 2GB RAM Installed)

I think thats right anyway but im not too sure as im still learning aswell.
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Old 08-11-2007, 06:30 PM
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Default Operating System and Ram

One man told me he has 8gb's of Ram on his PC and still runs it with XP, before that he had 4gb's.

Still confused.
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Old 08-11-2007, 08:55 PM
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Default Operating System and Ram

To answer your base question nothing if you put more ram in than the OS can use it does no damage but it does no good either. There is a way to get Vista to recognize the full 4GB if i can find it I'll post it up.
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Old 08-11-2007, 10:34 PM
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Default Operating System and Ram

it all depends on which versions of XP/vista you are talking about. 32bit XP will support ~3GB and no more as it saves some address space for i/o.PAE etc... 4GB is all the memory a 32bit os can address. You can enable AWE/PAE but I really wouldn't go that route.

If you want to run more memory upgrade to 64bit xp/vista; server 2003 datacenter/enterprise.

MacOS is by default 64bit and will address over and above this limit; and even above the 16GB quoted.

But hey you only will ever 640Kb of memory; those were the days....

Last edited by mr_miller : 08-11-2007 at 10:35 PM.
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