2 x 1gb Geil 533 DDR2 + 2 x 1gb OCZ 800 DDR2 = 3 gb? help!!

banditco

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Jun 20, 2007
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I just stick in my new 2 x 1 gb OCZ DDR2 800 on my computer. Currently I've got Geil 2 x 1gb DDR2 533.
I start the computer, check the bios..however i got only 3 gb RAM?!?
shouldnt be 4gb??
where the hell is 1gb gone? I am using P5B deluxe ASUS motherboard. It support 800 ram..
 

dengamle

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Apr 18, 2007
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That's a common problem. Some of the lower 4GB memory space is used for other hardware resources. So there is not enough room for the RAM there.

The solution is 64-bit OS and memory remapping (can be activated in bios, if supported)
 

knowsitall

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Dec 19, 2006
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I just stick in my new 2 x 1 gb OCZ DDR2 800 on my computer. Currently I've got Geil 2 x 1gb DDR2 533.
I start the computer, check the bios..however i got only 3 gb RAM?!?
shouldnt be 4gb??
where the hell is 1gb gone? I am using P5B deluxe ASUS motherboard. It support 800 ram..

um dude your using a 32bit operating system, u cant use 4gb on 32bit software, get microsoft xp or vista 64 bit...
 

phassat

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Jun 11, 2007
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it just won't read the rest 1GB... In total 32 bit OS will only read 4GB which already shared by VGA Card, etc....
 

banditco

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so my 256mb on vga card + the rest 1gb might be shared on vga card... it made my loading games fasterrr...yay!...truly i can see the difference...thanks mite!..
no need to upgrade vga card with bigger memory..
 

jackluo923

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No the 1Gb missing memory isnt' shared by the VGA card. It's wasted, meaning it is used by nothing in your computer. Adding 2 more GB of ram makes your games loads faster because you added 1Gb ( effective) ram to your main memory thus increased your main memory to 3GB. You're missing 1GB of memory because the total ram you can install is the total minus all your other I/O's memory addressing.

You can reactivate/use the 4th GB of ram by switching to a 64bit OS or Memory Remapping feature. 64bit OS can theoretically support few thousand gigs of Ram and 32bit OS (such as windows 2000) with memory remapping feature can support 64GB+.