Date: Wed, 23 Feb 2005 10:21:31 +0100 From: "O. Hartmann" <ohartman@mail.uni-mainz.de> To: freebsd-amd64@freebsd.org Subject: More than 4 GBytes RAM on Socket939 system? Message-ID: <421C4B1B.5070102@mail.uni-mainz.de>
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Dear Sirs. I'm not a technical thug, so I do not know many about recent chipsets. I just build up a ASUS A8N-SLI Deluxe based AMD64 sytem, socket 939, AMD 64 3500+ (Winchester), 2 GB ECC RAm for some numerical calculations. 2GByte DDR400 RAM seems to become available within the next few months and I though about increasing the avaiable memory in my AMD64 box -if possible. Socket 939 mainboards do have several benefits compared to Socket 940 boards (for single chip mahines, not SMP), especially PCIe. So that is the reason why I decided to obtain a Socket 939 machine. Will it be possible to address more than 4GBytes of RAM with the above mentioned board (nVidia nForce4-SLI chipset)? The limitations are settled in the chip core, I think. AMD64 processores only address 4 memory slots and can not address 128MBit memory chips, as I found in the net so maximum memroy capacity is 4GB with available 1GB modules. But what is about 2GB modules as I mentioned above? Will it be possible to just increase or double the memory? Especially for our scientific calculations, which are hungry of memory, this would be a great benefit ... Thnaks in advance, Oliver
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