Vista - Does not recognize 4GB Ram

**MorenoPinheiro** · 01-14-2009

I have Windows Vista Business x64 SP1 and updates installed, both installed yesterday.
My bios and motherboard recognize the memories, but the OS is found only 3200MB.
Somebody can help me?

Motherboard MSI

945GCM5

System Start DDR2 4096MB 667 Dual-Channel

Bios version 17.8

Bios info

**MrNeeds** · 01-14-2009

if its an onboard graphics adaptor, the memory will be in use with the graphics card(shared memory), as the operating system is recognising you have 4GB installed and its only showing 3.2Gb, im sure this is the problem. Your options are to load the Bios and set the defaut memory allocation for use by the onboard graphics adaptor or get a dedicated graphics card.

**MorenoPinheiro** · 01-14-2009

My graphics adaptor is offboard.
Nvidia GForce GT8600 xxx 256MB.

I am not sharing memory, because I have a DDR2 1GB too and when I am using it recognize full 1GB on the same system.

My system:

**AstaLaVista** · 01-14-2009

Have you tried to go into your Bios and check if your Onboard card is Enable? I say this based on what MrNeeds said.

**MorenoPinheiro** · 01-15-2009

When I bought my video card I changed in bios the primary video adapter for pci-e. So Onboard card is disable.

I didn't find a place in the bios to change the memory divided.

**MorenoPinheiro** · 03-06-2009

I found the answer to my memory problem in MSI forum (945 chipset memory limitations?).

The problem is my motherboard address limitation not a windows vista.

Thanks for help.

01-14-2009	#1 (permalink)
MorenoPinheiro Vista Business x64 5 posts	Does not recognize 4GB Ram I have Windows Vista Business x64 SP1 and updates installed, both installed yesterday. My bios and motherboard recognize the memories, but the OS is found only 3200MB. Somebody can help me? Motherboard MSI 945GCM5 System Start DDR2 4096MB 667 Dual-Channel Bios version 17.8 Bios info Attached Thumbnails Attached Images
My System Specs

01-14-2009	#2 (permalink)
MrNeeds Vista Home Premium x64 1,179 posts	Re: Does not recognize 4GB Ram if its an onboard graphics adaptor, the memory will be in use with the graphics card(shared memory), as the operating system is recognising you have 4GB installed and its only showing 3.2Gb, im sure this is the problem. Your options are to load the Bios and set the defaut memory allocation for use by the onboard graphics adaptor or get a dedicated graphics card.
My System Specs

01-14-2009	#3 (permalink)
MorenoPinheiro Vista Business x64 5 posts	Re: Does not recognize 4GB Ram My graphics adaptor is offboard. Nvidia GForce GT8600 xxx 256MB. I am not sharing memory, because I have a DDR2 1GB too and when I am using it recognize full 1GB on the same system. My system: Attached Thumbnails
My System Specs

01-14-2009	#4 (permalink)
AstaLaVista Vista x64 + Windows 7 x64 (Ultimate) 1,213 posts	Re: Does not recognize 4GB Ram Have you tried to go into your Bios and check if your Onboard card is Enable? I say this based on what MrNeeds said.
My System Specs

01-15-2009	#5 (permalink)
MorenoPinheiro Vista Business x64 5 posts	Re: Does not recognize 4GB Ram When I bought my video card I changed in bios the primary video adapter for pci-e. So Onboard card is disable. I didn't find a place in the bios to change the memory divided.
My System Specs

03-06-2009	#6 (permalink)
MorenoPinheiro Vista Business x64 5 posts	Re: Does not recognize 4GB Ram I found the answer to my memory problem in MSI forum (945 chipset memory limitations?). The problem is my motherboard address limitation not a windows vista. Thanks for help.
My System Specs

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