2gb to 4gb memory upgrade; lenovo t60p Tags: Memory BIOS Lenovo Memory Upgrade Last response: November 11, 2011 1:43 PM in Memory Share grgoffe November 4, 2011 4:48:55 AM Hi, I recently upgraded my Lenovo t60p from 2g to 4g memory. Fedora Core 14, latest kernel only sees 3g. The following command seems to be saying that memory upstairs is reserved. High water mark is 4g. Bios sees 4g. I don't quite understand why this memory is being used or what it's used for. Does anyone have any ideas? Regards, George... grep 'BIOS-e820' /var/log/dmesg [ 0.000000] BIOS-e820: 0000000000000000 - 000000000009f000 (usable) [ 0.000000] BIOS-e820: 000000000009f000 - 00000000000a0000 (reserved) [ 0.000000] BIOS-e820: 00000000000d2000 - 00000000000d4000 (reserved) [ 0.000000] BIOS-e820: 00000000000dc000 - 0000000000100000 (reserved) [ 0.000000] BIOS-e820: 0000000000100000 - 00000000bfed0000 (usable) [ 0.000000] BIOS-e820: 00000000bfed0000 - 00000000bfedf000 (ACPI data) [ 0.000000] BIOS-e820: 00000000bfedf000 - 00000000bff00000 (ACPI NVS) [ 0.000000] BIOS-e820: 00000000bff00000 - 00000000c0000000 (reserved) [ 0.000000] BIOS-e820: 00000000f0000000 - 00000000f4000000 (reserved) [ 0.000000] BIOS-e820: 00000000fec00000 - 00000000fec10000 (reserved) [ 0.000000] BIOS-e820: 00000000fed00000 - 00000000fed00400 (reserved) [ 0.000000] BIOS-e820: 00000000fed14000 - 00000000fed1a000 (reserved) [ 0.000000] BIOS-e820: 00000000fed1c000 - 00000000fed90000 (reserved) [ 0.000000] BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved) [ 0.000000] BIOS-e820: 00000000ff800000 - 0000000100000000 (reserved) More about : 2gb 4gb memory upgrade lenovo t60p jayadratha November 4, 2011 5:16:57 AM use the memory in any other system. if same problem occurs then your memory may be bad..................... you can also check by clearing electrostatic surges from the memory....... hell_storm2004 a b } Memory November 4, 2011 9:16:42 AM Have you got a 32bit OS? Related resources Opinions on Alienware Laptops - Forum WindowsXP is not recognizing my 4GB of RAM - Forum Memory Upgrade to 6GB for Lenovo T510 - Forum Upgrade from 2gb to 4gb memory - Forum http://www.tomshardware.com/forum/ [...] -chit-chat - Forum Can't find your answer ? Ask ! Get the answer grgoffe November 11, 2011 12:17:02 AM Hell_Storm, Thanks for your response. Yes, Fedora Core 14 x86_64... ALL up to date. I posted a bug on their bug site and they responded that it's a hardware design problem. It's hard for me to believe that Lenovo would advertise (it's in the spec) 4GB capable but not actually work with 4GB. George... hell_storm2004 a b } Memory November 11, 2011 5:58:36 AM Ok... Just one thing, check the BIOS settings for the RAM's. Try to do them manually. Play around and see if it solves the issue. grgoffe November 11, 2011 1:40:59 PM Hell, I have looked over the BIOS settings. The machine, at least the BIOS says 4GB... This makes me think it's a software but FC 14 support seems to think otherwise. Sigh... AND, the last line of the BIOS-e820 numbers are in the 4gb range. 4294967296 according to a hex calculator I have. Thanks for your response! It's appreciated. George... hell_storm2004 a b } Memory November 11, 2011 1:43:54 PM Try posting the issue on Fedora forums. I have very little clue about that OS. They can let you know the ins and outs of the OS (if it is really the OS that is causing the issue). Can't find your answer ? Ask ! Publish Related resources: Forumhttp://www.tomshardware.com/forum/ [...] -chit-chat Forumhttp://www.tomshardware.com/forum/ [...] -chit-chat ForumWindows 7 memory requirements - 2GB ? ForumChoosing a laptop for college. ForumI have i memory stick ddr3 1066 2gb , then i added another stick ddr3 1333 4gb , t ForumCore i5-2400 with 2gb memory vs core i5-2400s with 4gb memory Forum[Solved] Upgrade from 2GB to 4GB ForumDo I have 2GB of memory or 4GB ? ForumLenovo Nvidia GT555 1GB VS Nvidia 2GB ForumNew lenovo , cheap price, oddly great gaming performance so far ForumLenovo v. Toshiba v. HP (Similar Pricing) ForumIntel i5 3550p & AS Rock Z77 PRO 3 Forum[Solved] Mix memory manfactures ForumMemory upgrade ForumShould i upgrade from 4gb ram to 8gb? More resources Read discussions in other Memory categories Compatibility DDR2 DDR3 Dual Channel RAM Corsair G.SKILL !