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	Replies: 6 - Pages: 1 - Last Post: 18-Sep-2011 22:03 Last Post By: Strummer

Strummer

Posts: 4
Registered: 17/09/11

Equium A100-338 doesn't recognise 4GB of RAM
Posted: 17-Sep-2011 13:45

Hi,

I have an Equium A100-338 laptop which had 32Bit Vista Home Premium on when I first bought it several years ago. I upgraded the memory from 2 to 4GB soon after getting the laptop but it would only use 3GB. Recently I upgraded the OS to 64 bit Windows 7 professional which is all workng fine except the system is still only making use of 3GB of the installed RAM.

There doesn't seem to be much in the way of Windows 7 driver updates on the Toshiba website for this model. I tried the available OS independent BIOS update but this failed to complete as it was unable to load a driver file from my AppData folder.

Has anyone had any similar experience or could offer some advice?

PauPau

Posts: 4,280
Registered: 21/09/09

Re: Equium A100-338 doesn't recognise 4GB of RAM
Posted: 18-Sep-2011 11:37

in response to: Strummer

Recently I upgraded the OS to 64 bit Windows 7 professional which is all workng fine except the system is still only making use of 3GB of the installed RAM.

Does BIOS recognize the full 4GB RAM?
Check this! You can access the BIOS pressing F2 while booting up.

You can also check the available RAM in DirectX. In RUN (or search) type DXDIAG

Strummer

Posts: 4
Registered: 17/09/11

Re: Equium A100-338 doesn't recognise 4GB of RAM
Posted: 18-Sep-2011 13:05

in response to: PauPau

Hi PauPau, thanks for your suggestions. In BIOS it say:

System Memory: 640KB
Extended Memory: 3135488KB (3GB if my maths is correct!)

I ran DXDIAG and that shows the full 4GB but under Computer>Properties it says 4GB installed (2.99GB usable).

PauPau

Posts: 4,280
Registered: 21/09/09

Re: Equium A100-338 doesn't recognise 4GB of RAM
Posted: 18-Sep-2011 17:16

in response to: Strummer

Helpful

I ran DXDIAG and that shows the full 4GB but under Computer>Properties it says 4GB installed

So everything seems to be ok

Strummer

Posts: 4
Registered: 17/09/11

Re: Equium A100-338 doesn't recognise 4GB of RAM
Posted: 18-Sep-2011 18:41

in response to: PauPau

How come under Computer>Properties it says only 2.99GB of the 4GB installed is usable?

Paolo30

Posts: 3,131
Registered: 21/09/09

Re: Equium A100-338 doesn't recognise 4GB of RAM
Posted: 18-Sep-2011 20:55

in response to: Strummer

Helpful

Because of the graphic card memory…
The part of the memory is shared by graphic card. This is controlled by graphic card driver!

Strummer

Posts: 4
Registered: 17/09/11

Re: Equium A100-338 doesn't recognise 4GB of RAM
Posted: 18-Sep-2011 22:03

in response to: Paolo30

Thanks to all for your help and suggestions

Pages: 1

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