8i945gmh-rh won't detect 4 GB of RAM

Custom / CUSTOM
October 17, 2009 at 11:56:57
Specs: Microsoft Windows XP Professional, 2.802 GHz / 3007 MB
I have an 8i945gmh-rh server and I am planning to put 64 bit Windows Server 64 bit or VMware ESX Server on it. I put 4 GB of PC 6400 memory in it from PC 4300 2 GB of RAM. Now, here is the issue. The BIOS detects the ram as 3.24 GB instead of all 4. How do I enable Memory Remap for this motherboard? I can't find out how to do it and I even updated the BIOS.

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#1
October 17, 2009 at 12:39:30

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#2
October 17, 2009 at 12:50:33
I've never used the desktop i945 chipset, but the mobile i945 chipsets will only do up to 3GB of RAM. The desktop 945 probably has the same limitation.

AFAIK, not even a BIOS update can solve this, as the problem lies in the fact that the memory controller component of the i945 can only handle 32-bit memory access.

I currently have 4GB of RAM installed in my i945-based laptop, but Windows Vista Business 64 only sees 3GB of it.


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#3
October 17, 2009 at 13:19:32
Reading other threads, I am disgusted. Intel is really ripping us off with this 4 GB dillema. I was really going to install Windows Server 2008 64 bit on a 4 GB system together with a 2 GB Hyper V Machine running Exchange Server 2007! However, its not possible with the fact that my server has only has 3.24 MB of Memory because of the stupid chipset. I guess I have to just use Windows Server 2003 32 bit instead. I don't want my Domain Controller having less than 1 GB because of the VM's!

http://www.youtube.com/judenihalmusic


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