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Max memory supported by windows xp-32bit?

post #1 of 19
3/23/08 at 8:59pm
Thread Starter 
Title is basically the question... does windows xp 32 bit support 4 gb of memory. Also... is it worth it to upgrade from what I have at the moment, 2 gb g.skill hz to like 4 gb g.skill hz?

Thanks in advance!
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post #2 of 19
3/23/08 at 9:01pm
It supports 4GB total. So if you have 512 Video RAM, then it'll support 3.5GB System RAM.
If you have no dedicated VRAM, then it'll support all 4GB of system RAM.
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post #3 of 19
3/23/08 at 9:02pm
the most you will see is 3.5 i believe. you will see an improvement in performance if you upgrade, not as much as a 64bit OS, but you will see an improvement.

edit: i have 4 gigs, my sig, right now its showing 3.4
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post #4 of 19
3/23/08 at 9:03pm
Thread Starter 
so 512 of the ram is useless due to the video card?
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post #5 of 19
3/23/08 at 9:08pm
Quote:
Originally Posted by puzzledazn View Post
so 512 of the ram is useless due to the video card?
pretty much.
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post #6 of 19
3/23/08 at 10:37pm
Quote:
Originally Posted by igob8a View Post
It supports 4GB total. So if you have 512 Video RAM, then it'll support 3.5GB System RAM.
If you have no dedicated VRAM, then it'll support all 4GB of system RAM.
^ EXACTLY what he said.

~Gooda~
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post #7 of 19
3/24/08 at 9:59am
Quote:
Originally Posted by puzzledazn View Post
Title is basically the question... does windows xp 32 bit support 4 gb of memory. Also... is it worth it to upgrade from what I have at the moment, 2 gb g.skill hz to like 4 gb g.skill hz?

Thanks in advance!
This may help answer your question
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post #8 of 19
3/24/08 at 10:01am
plus the bios uses ram so that'll set you back to maybe 3.3gb
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post #9 of 19
3/24/08 at 10:54am
i run 4 and see 3. i am running a pair of 640mb 8800 gts vid cards

although the system loads all 4 sticks evenly (corsair ddr with the leds), it is only actually using 3gb.
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post #10 of 19
4/2/08 at 9:40am
Any 32-bit operating system can only address 2^32 bits of RAM, which is 4GB. Since PCI devices are memory mapped, any RAM that they use needs to be part of the address space that the OS references. If you use 4GB of RAM, this will mean that the memory from your PCI devices will therefore "overlay" a portion of your RAM and cause less RAM to be visible to your OS.

For example, if you have two 512MB video cards in SLI mode, you will only be able to see a total of 3GB of ram.
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