Installed 4 gb ram but shows only 3 gb

[Syed_Jlaluddin]

I have hp compaq dc 7700 core 2 duo
It has 4 RAM slots ..... I had previously 2 Rams (1+1 gb) installed in two slots
But now I have 4 Rams (1+1+1+1gb) ... I have installed all of them in 4 slots .. but it shows only 3gb

I have win 7 home premium 32 bit

 

[Seanie280672]

I have hp compaq dc 7700 core 2 duo
It has 4 RAM slots ..... I had previously 2 Rams (1+1 gb) installed in two slots
But now I have 4 Rams (1+1+1+1gb) ... I have installed all of them in 4 slots .. but it shows only 3gb

I have win 7 home premium 32 bit

Only shows 3gb where ? in the bios or in Windows ?

Also, which graphics card, if you are using onboard graphics, then that would explain the missing RAM< reserved for graphics.

 

[jaslion]

I have hp compaq dc 7700 core 2 duo
It has 4 RAM slots ..... I had previously 2 Rams (1+1 gb) installed in two slots
But now I have 4 Rams (1+1+1+1gb) ... I have installed all of them in 4 slots .. but it shows only 3gb

I have win 7 home premium 32 bit

You have a 32 bit windows the limit is 3.85gb on a 32 bit version.

 

[Syed_Jlaluddin]

Sorry accidentally voted bad... Really sorry for that...... I am using Nvidia GeForce 9500 gt

 

[Endre555]

There is nothing wrong with your hardware. The problem is that you are using a 32 bit version of Windows, and it only supports up to 3GBs of RAM.
Upgrade to a 64 bit version of Windows and you will be able to use all 4GBs of RAM.

 

[Seanie280672]

Ahh yes, I missed that.

 

[shrapnel_indie]

I have hp compaq dc 7700 core 2 duo
It has 4 RAM slots ..... I had previously 2 Rams (1+1 gb) installed in two slots
But now I have 4 Rams (1+1+1+1gb) ... I have installed all of them in 4 slots .. but it shows only 3gb

I have win 7 home premium 32 bit

Part of why you only see 3GB instead of 4 lies in your OS. You have a 32 bit version. It maxes out at 4GB, but then it reduces the amount of RAM from there for various internal addressing space. Also if you are using an integrated GPU (not a GPU on a card) that will eat up RAM from what Windows has usable as well. However using a discreet GPU like you are,..leaves whatever the Maximum your motherboard supports and the limits and reservations of your 32-bit OS.

 

[gasaraki]

32-bit OS is your problem. Depending on your video, you could only have 2-3.8GB available due to the video reserving some of the physical memory for itself.