Messages in this thread | | | Date | Sat, 30 Jun 2007 12:24:57 -0600 | From | Robert Hancock <> | Subject | Re: Kernel doesn't recognize complete memory |
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Frank Fiene wrote: > On Samstag, 30. Juni 2007, Robert Hancock wrote: >> Frank Fiene wrote: >>> Lenovo Z61p, Intel Core2 Duo T7200 >>> >>> I have 4GB RAM installed and BIOS recognize 4GB RAM. >>> Linux kernel (Ubuntu-7.04, 32bit-PAE and 64bit, openSUSE-10.2 >>> 32bit-PAE and 64bit) tells me: only 3GB of RAM are installed. >>> >>> Any other user with a 4GB Thinkpad? tytso? >>> >>> What can i do? Please help! >>> >>> Regards >>> Frank >> Please post your bootup dmesg output. If your chipset doesn't support >> memory remapping above 4GB or the BIOS doesn't enable it, you won't >> be able to use all 4GB of memory. > > Here is me dmesg output, fist 400 lines.
BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 000000000009f000 (usable) BIOS-e820: 000000000009f000 - 00000000000a0000 (reserved) BIOS-e820: 00000000000dc000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 00000000bfed0000 (usable) BIOS-e820: 00000000bfed0000 - 00000000bfedf000 (ACPI data) BIOS-e820: 00000000bfedf000 - 00000000bff00000 (ACPI NVS) BIOS-e820: 00000000bff00000 - 00000000c0000000 (reserved) BIOS-e820: 00000000f0000000 - 00000000f4000000 (reserved) BIOS-e820: 00000000fec00000 - 00000000fec10000 (reserved) BIOS-e820: 00000000fed00000 - 00000000fed00400 (reserved) BIOS-e820: 00000000fed14000 - 00000000fed1a000 (reserved) BIOS-e820: 00000000fed1c000 - 00000000fed90000 (reserved) BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved) BIOS-e820: 00000000ff800000 - 0000000100000000 (reserved)
Yes, that's the problem. Your BIOS/chipset only provides about 3070MB of usable RAM to the OS. Unless there is a memory remap option in the BIOS that you can enable, there's not much you can do about it.
-- Robert Hancock Saskatoon, SK, Canada To email, remove "nospam" from hancockr@nospamshaw.ca Home Page: http://www.roberthancock.com/
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