Just show half of Ram

[hhdreamer]

Dear Friends

I have a problem recently with my PC system memory.
Now when I look for my system memory it just shows half of it, for further information, my system has 4G ram but it shows only 2G.
I have 2 numbers of 2G ram that you will see its picture at the bottom.
I tried to change the slots, and try to test each of them individually but it was so strange because each Ram that I put it shows only 1G memory also in bios and the system properties.
my system wasn't here for a while and in this period its graphic changed and my guess is that the graphic is stealing half of the memory but it isn't rational (my new graphic listed below)
I really need my whole memory and please help me about this.
I put everything that is needed about my system down here.
so please tell me if you need any other information.

Memory Information: http://8pic.ir/images/7qwbf1z3oo17mjl2g0h9.jpg
System Information: http://8pic.ir/images/t1tyc0plnbzkxxbqcuc5.jpg
Graphic Information: http://8pic.ir/images/yx68wsvd7ytzj4ipax9.jpg

Motherboard Model: ASUS P5KPL - 1600

 

[ss202sl]

This shows support for only 4GB of memory.
http://www.asus.com/Motherboard/P5KPL1600/#specifications

This leads me to think that each slot will only see 1GB.

Check for a bios upgrade that may help. Also look at this:
http://www.asus.com/Motherboard/P5KPL1600/#support_QVL

 

[hhdreamer]

Thank you for your answer
But I remember that a few months ago my system showed 4G memory in system information.
But I was on college and my brother changed the graphic to 9400GT and now this is what I see. Just 2G memory.
I will update my bios and will tell you about consequences.

 

[hhdreamer]

I updated my bios but nothing happened and after changed to yellow slots and overclocking to 1066hz but it failed to do it unfortunately.

 

[jnkweaver]

Thank you for your answer
But I remember that a few months ago my system showed 4G memory in system information.
But I was on college and my brother changed the graphic to 9400GT and now this is what I see. Just 2G memory.
I will update my bios and will tell you about consequences.

You are using 32 bit Windows that will only address 4GB. That includes video memory. If you put in a card that has 2GB it gets addressed first and leaves you with 2GB. No matter how much memory you add it will not go above 4GB until you get Windows 64bit

 

[hhdreamer]

You are using 32 bit Windows that will only address 4GB. That includes video memory. If you put in a card that has 2GB it gets addressed first and leaves you with 2GB. No matter how much memory you add it will not go above 4GB until you get Windows 64bit

Dear "jnkweaver"

in the pic I put its url above (system information) you'll see my windows is x64 version.
Windows 8 Pro 64x

 

[jnkweaver]

Dear "jnkweaver"

in the pic I put its url above (system information) you'll see my windows is x64 version.
Windows 8 Pro 64x

Sorry I'm at work and can't read anyone's links.

It sure sounded like a 32 bit issue