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4GB RAM+32-bit OS question

post #1 of 10
Thread Starter 
I was just wondering if I bought another set of RAM for the low price of 30 bucks and knowing that the OS can only see a max of 3.2GB of it, will that kill the dual channel support or does it stay dual channel?

Thanks!
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post #2 of 10
only installing 3gb will disable dual channel, but as long as there is physically 4gb, it should be fine.
post #3 of 10
As far as I know it stays dual channel. However, most people with VISTA 32 bit report only seeing 2.5GB...so it's really no good. i would just get the 64 bit OS .
post #4 of 10
You'll see 4GB minus any other sources of RAM--like video memory and sound card memory, etc. So you'll likely have somewhere between 2.5-3.5GB of useable system RAM depending on your particular configuration.

As yourself though--do you need more than 2GB at the moment? It'll depend on your usage. But I guess for $30, you can't go wrong. Just make sure the new modules are matched in specs with your current ones and you'll stay in dual-channel. The one thing you won't be able to do is run at 2T timings, but some boards don't even support running at 1T in the first place...
    
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post #5 of 10
Quote:
Originally Posted by alwaysAMD View Post
only installing 3gb will disable dual channel, but as long as there is physically 4gb, it should be fine.
You can have 3GB and dual channel with 2x1GB+2x512MB.


Quote:
Originally Posted by guyladouche View Post
You'll see 4GB minus any other sources of RAM--like video memory and sound card memory, etc. So you'll likely have somewhere between 2.5-3.5GB of useable system RAM depending on your particular configuration.
32-bit Vista allows only up to 3120MB to be usable: http://support.microsoft.com/kb/929605
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post #6 of 10
Just edit your boot.ini file. Add the "/3gb" switch to the end of the windows partition string

This way, windows will allocate 3gb for your programs and 1gb for the kernel.
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post #7 of 10
Quote:
Originally Posted by DuckieHo View Post
32-bit Vista allows only up to 3120MB to be usable: http://support.microsoft.com/kb/929605
Ah, good point... *bows head* Thanks for correcting me!
    
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post #8 of 10
Installing SP1 in vista 32bit allows you to see 4gb on the my computer page, but thats about it.
post #9 of 10
Thread Starter 
I want 64-bit Vista but I hear that driver support is not quite up to par quite yet.

So, 3.12GB? That's still 1.12GB better than I'm running. It just gives me some more headroom.
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post #10 of 10
Quote:
Originally Posted by francesthemutes View Post
I want 64-bit Vista but I hear that driver support is not quite up to par quite yet.

So, 3.12GB? That's still 1.12GB better than I'm running. It just gives me some more headroom.
Driver support is fine as I am running Vista x64 right now.
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