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Why do i have 2.91 gb when my laptop's memory is 4gb

Kursah

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Because some is going to be shared with the onboard graphics, and some may be reserved for other uses as well. Go to start, in the search bar (assuming windows 7, do windows key + s in windows 8) and search for Resrouce Monitor. Go to the memory tab, that will give you a more clear picture of what is and isn't hardware reserved. That seems like quite a bit, but depending on the GPU and it's quoted usage rights that might be okay. Without knowing more about your laptop (system specs), that's about where I would leave it.

It could be a 32-bit OS issue...but I would assume an older laptop at that point as most recent laptops I've had experience with utilize x64, especially when they feature 4GB or more RAM. Seems almost pointless even on laptops to run an x86 OS anymore, at least on something modern to a few years old imho. But that could be a very real situation too...as Windows 32-bit will see 4GB but cannot utilize all 4GB because it's limited to a total address space of 4GB iirc. Where x64 OSes have what 128GB addressable space? I forget the specifics, but a quick google would sort ya out.

Between GPU usage and possible x86/32-bit OS both could explain why you're not able to use the full 4GB memory.
 
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What are your laptop's system specs?

I'm asking because some motherboard bios have a 'memory remap feature'. You need to go in the bios and set it to 'enable' otherwise you won't be using your full RAM.

Normally it's the older motherboards which have this feature (my P5B has it but not the UD3R).

Here are some other remedies you might try.
 
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I advise nobody go into depth until the OP comes back. You may be wasting your time.

I've notice an influx of new accounts asking basic questions and never returning. Spam accounts maybe?
 
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I advise nobody go into depth until the OP comes back. You may be wasting your time.

I've notice an influx of new accounts asking basic questions and never returning. Spam accounts maybe?
In response to that I slim my answer to this.

Your OS is probably x32. Get x64. Save time and still provide an answer! hahaha
 
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Before asking questions lie this list your specks. Otherwise its a guessing game. Must be a bot he hasn't come back in 2 1/2 hours. Or he posted this on 19 forums and didn't realize this is the only one that matters
 
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i guess your os is 32bit.
32 bit has limitation, so thats why your ram just read 2.91 gb
 

Mussels

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In response to that I slim my answer to this.

Your OS is probably x32. Get x64. Save time and still provide an answer! hahaha
no such thing as x32, just as an fyi. its x86
 
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no such thing as x32, just as an fyi. its x86

good point.. otherwise answers will lead somewhere again.... Oh Mussels, how come your avatar name or profile name is "MODERPRATOR"? ^_^


Yes everybody knows about 32 bit and 64 bit has a limitations on RAM...

TO OP (ORIGINAL POSTER) or Thread Starter or whatever....

or to tetruso3, here are some readings for you

http://msdn.microsoft.com/en-us/library/windows/desktop/aa366778(v=vs.85).aspx

suggest you search first..... use any search engines.. google, yahoo, bing... duck duck or whatever, it will pop up alot of answers for you..... just search
 

Mussels

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good point.. otherwise answers will lead somewhere again.... Oh Mussels, how come your avatar name or profile name is "MODERPRATOR"? ^_^


Yes everybody knows about 32 bit and 64 bit has a limitations on RAM...

TO OP (ORIGINAL POSTER) or Thread Starter or whatever....

or to tetruso3, here are some readings for you

http://msdn.microsoft.com/en-us/library/windows/desktop/aa366778(v=vs.85).aspx

suggest you search first..... use any search engines.. google, yahoo, bing... duck duck or whatever, it will pop up alot of answers for you..... just search
because i am a derpy moderator. as pedantic as it seems i clarify things like 'x32' when i see them, because it can totally screw someone over googling for more information.
 
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ok 32 bit your problem go change to 64 bit

maybe your GPu use a memory

intel Gpu sued if you have 2 GPu
 
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@I advise nobody go into depth until the OP comes back. You may be wasting your time.

I've notice an influx of new accounts asking basic questions and never returning. Spam accounts maybe?

+1
 
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ok 32 bit your problem go change to 64 bit

maybe your GPu use a memory

intel Gpu sued if you have 2 GPu

you are mis leading informations..........

even GPU use memory, it will still show 2.91 usable in your Ram computer memories properties if you have 32bit or x86 windows OS....
 
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@I advise nobody go into depth until the OP comes back. You may be wasting your time.

I've notice an influx of new accounts asking basic questions and never returning. Spam accounts maybe?

+1
maybe yes maybe no, if the OP not returning more than a week, lets guess..
 
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