3GB of RAM insted of 4 on a x64 System?

[bassamelali]

My laptop is an HP HDX 16
of 4GB RAM
Windows Vista x64

Ever since ive gotten my laptop, Dxdiag cleary says that i have 4096mb of ram
But a few days ago i noticed my laptop has gotten sort of slower
so i open Dxdiag and i find theres 3128mb of RAM!
in my BIOS it clearly says too that theres 4096mb of Physical Memory
even when i go to Computer Properties it says x64 system of 4.00GB RAM
At the task manager it says i have 3068MB of RAM, 2066 Cached and 58 Free.
But i remember and for sure i used to read 4096mB of RAM

Why it this happening? i need that 1GB


And thank you

 

[nikorr]

What RAM do u have?

All sticks are the same?

 

[nikorr]

Can u post your Resource Monitor pic?

 

[bassamelali]

Can u post your Resource Monitor pic?

http://www.geoff-reynolds.net/hometheater/Resource Monitor - Memory.jpg

i dont see how that helps though

 

[nikorr]

That is not the same picture ....

 

[bassamelali]

sorry for the massive bump but i really need help

 

[nikorr]

Well, post a new pic, correct one now : )

 

[bassamelali]

i dont how to, i opened Resource Monitor and thats what i got
im using vista x64

 

[nikorr]

I see, OK, do u have a remap feature in the BIOS?

Try enabling Memory Remaping in BIOS, or something like this, if you manage to find it in your BIOS SETUP.

 

[mubin]

Choose memory tab in resource monitor.

 

[nikorr]

Can u verify the windows version with this Speccy? @ http://www.filehippo.com/download_speccy/

 

[nikorr]

Can u post what sticks and how many u have installed?

 

[jaquith]

The picture tells us where the memory is going and/or if you're misinterpreting the memory. The tell tale sign is the amount of Hardware Reserved - normal is ~30-60MB and anything significantly more is a sign of a problem IF your PC/Notebook supports >4GB.

If the Total and Installed are close to ~4000MB then ALL of your RAM is being recognized. Remember about ~1000MB (1GB) is going to be In Use for the OS and any Apps running.