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On Sat, 2005-05-14 at 16:54 +0200, Christian Parpart wrote: |
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> Hi all, |
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> |
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> I finally got it; my Operaton workstation with 2x Opteron248 CPUs and 4GB RAM |
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> is arrived. However, the BIOS says that I really have 4GB RAM inside, that I |
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> have, but the Linux is just telling me something about 3GB. |
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The upper 1G is sometimes lost to PCI etc. adress space |
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Especially in 32bit mode since the kernel has to allocate some space for |
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PCI, DMA buffers, ... and it has to fit into 32bit adress space (and 4G |
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~= 32bit) |
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> `free -mt` as |
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> well as `kinfocenter` are telling this. Although, I (unfortunately) *had* to |
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> install windows2003 on a partition, too (for working for my company), and |
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> there it is also just telling me something about 3 (instead of 4) GB RAM. |
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known "bug" in windows, it can only use 3G |
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> Did I miss something? |
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re-check the BIOS and kernel config ... I've seen it working with 4G :-) |
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> mem=4096M in boot commandline didn't help there much. |
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> |
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> I'm having a TYAN board, with PhoenixBIOS on it. The handbook is far off being |
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> a good handbox, so, did I miss something I should configure/reconfigure in |
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> the BIOS then, so, that the OS will use all RAM? |
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> |
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> I found something about "Memory hole" and "1024MB". maybe this is my missing |
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> 1GB? But I can't really disable it, although, playing around w/ this value |
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> didn't change anything (yet)... |
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Sounds right, but I don't know what exactly would need changing |
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|
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Patrick |
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