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Windows 7: Only 3GB out of 4GB available to system

31 Jan 2010   #1
sdjensen

Windows 7 Professional x64
 
 
Only 3GB out of 4GB available to system

Hi,

I have a Acer REVO R3600 with a duel core Atom processor (N330 64-bit enabled) and with 4GB memory, but when I right-click My Computer and select properties it states that there is 4GB of memory installed but only 3GB available to the system - why is that? I am using Windows 7 64-bit Professional.


My System SpecsSystem Spec
.
31 Jan 2010   #2
nate42nd

Windows 7 Professional x64
 
 

Some of your memory is mapped for use by hardware. Don't worry, it's being used. This is a very popular question here. You can read more about it in many threads. Here is an example but there are a hundred more.

all the installed memory (RAM) not usable??
My System SpecsSystem Spec
31 Jan 2010   #3
Crispy

Windows 7 Ultimate x64 Service Pack 1 (Build 6.1.7601)
 
 

Go into your bios and check your setting, there is a setting in there that limits the amount off RAM.
My System SpecsSystem Spec
.

31 Jan 2010   #4
bobkn

Windows 7 Pro X64 SP1
 
 

Quote   Quote: Originally Posted by nate42nd View Post
Some of your memory is mapped for use by hardware. Don't worry, it's being used. This is a very popular question here. You can read more about it in many threads. Here is an example but there are a hundred more.

all the installed memory (RAM) not usable??
Is this relevant to the X64 version?
My System SpecsSystem Spec
31 Jan 2010   #5
nate42nd

Windows 7 Professional x64
 
 

Quote   Quote: Originally Posted by bobkn View Post
Quote   Quote: Originally Posted by nate42nd View Post
Some of your memory is mapped for use by hardware. Don't worry, it's being used. This is a very popular question here. You can read more about it in many threads. Here is an example but there are a hundred more.

all the installed memory (RAM) not usable??
Is this relevant to the X64 version?
With some hardware and certain IRQ settings.......yes it is. It depends on your specific configuration from my understanding. I'm not an expert on this matter, but I have read enough to understand it happens with certain configurations. This specific thread was just one of the first ones that popped up. I should not have posted it....it may not have relevance here, but I believe the OP is experiencing hardware or IRQ configurations that are effecting the RAM.
My System SpecsSystem Spec
01 Feb 2010   #6
sdjensen

Windows 7 Professional x64
 
 

nate42nd:

I believe you had it right. If I in the task manager choose Resource Monitor I can see a bar of my memory allocation and surely there is 1GB reserved for hardware.

Thanks
My System SpecsSystem Spec
01 Feb 2010   #7
Dwarf

Windows 8.1 Pro RTM x64
 
 

Have a look at this post to see if that is the reason for the anomally. RAM issue

Let us know the results of following the instructions in this post.
My System SpecsSystem Spec
28 Apr 2010   #8
didier3001

Windows 7
 
 
Max memory supported

Hi everyone,

As you already know there is a problem with this Acer Revo, it does not support 4GB of RAM. I recommend you to go on the website below and provide your testimonials:
http://www.revouser.com/forum/viewto...9&p=2555#p2555

As soon as we have enought testimonials, we will contact Acer and ask an official statement or solution.

Regards,
Didier
My System SpecsSystem Spec
Reply

 Only 3GB out of 4GB available to system




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