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Old 01-24-2012, 08:16 PM   #1
keithbaylor
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Question RAM discrepency...how to fix?


Hello, I recently purchased an amd A6 quad core system. I have loaded Ubuntu 11.10 64 bit desktop version. The system came with 4gb of RAM. After tweaking the graphics I decided to load an additional 4GB of RAM. I like to run virtual boxes so I wanted the extra memory. However I have not been able to get the new RAM to register past the original 4g(actually show as 3.4) What am I missing? The cpus show up as "4" and a 64 bit. Thanks for the help. The bios clocks out as 8gb as well.
 
Old 01-24-2012, 08:49 PM   #2
bigrigdriver
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You may need to install software relating to the kernel. Here is a set of instructions and the names of software packages to install.
 
Old 01-25-2012, 05:08 PM   #3
keithbaylor
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did not work

Hello, I updated the files as indicated above, but still no upgrade on the ram. I am already running the 64 bit OS so do I need to reinstall?
 
Old 01-25-2012, 05:21 PM   #4
eSelix
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You do not need PAE as you use 64 bit operating system. Better show logs from dmesg and output of "free -m" command.
 
Old 01-25-2012, 05:22 PM   #5
suicidaleggroll
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You shouldn't need to reinstall, I recently added 4GB to my OpenSUSE box and it worked just fine. Are you POSITIVE you have a 64-bit OS? What is the output of "uname -a"?

Does the BIOS show all 8GB on boot?
 
Old 01-25-2012, 05:30 PM   #6
keithbaylor
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uname -a

Linux keith-nix 3.0.0-14-generic #23-Ubuntu SMP Mon Nov 21 20:28:43 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux


Yes all 8gb show up in bios....
 
Old 01-25-2012, 05:31 PM   #7
keithbaylor
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free -m

total used free shared buffers cached
Mem: 3433 1156 2276 0 41 480
-/+ buffers/cache: 633 2799
Swap: 7627 0 7627
 
Old 01-25-2012, 05:53 PM   #8
eSelix
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And "dmesg" output, but please use CODE tags around it.
 
Old 01-25-2012, 05:58 PM   #9
keithbaylor
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dmseg | grep memory

dmesg |grep memory
[ 0.000000] initial memory mapped : 0 - 20000000
[ 0.000000] Base memory trampoline at [ffff88000009a000] 9a000 size 20480
[ 0.000000] init_memory_mapping: 0000000000000000-00000000bff00000
[ 0.000000] init_memory_mapping: 0000000100000000-000000011f000000
[ 0.000000] PM: Registered nosave memory: 000000000009f000 - 00000000000a0000
[ 0.000000] PM: Registered nosave memory: 00000000000a0000 - 00000000000e0000
[ 0.000000] PM: Registered nosave memory: 00000000000e0000 - 0000000000100000
[ 0.000000] PM: Registered nosave memory: 00000000bf486000 - 00000000bf88f000
[ 0.000000] PM: Registered nosave memory: 00000000bfb3f000 - 00000000bfbbf000
[ 0.000000] PM: Registered nosave memory: 00000000bfbbf000 - 00000000bfebf000
[ 0.000000] PM: Registered nosave memory: 00000000bfebf000 - 00000000bfef6000
[ 0.000000] PM: Registered nosave memory: 00000000bff00000 - 00000000e0000000
[ 0.000000] PM: Registered nosave memory: 00000000e0000000 - 00000000f8000000
[ 0.000000] PM: Registered nosave memory: 00000000f8000000 - 00000000fc000000
[ 0.000000] PM: Registered nosave memory: 00000000fc000000 - 00000000fec00000
[ 0.000000] PM: Registered nosave memory: 00000000fec00000 - 00000000fec01000
[ 0.000000] PM: Registered nosave memory: 00000000fec01000 - 00000000fec10000
[ 0.000000] PM: Registered nosave memory: 00000000fec10000 - 00000000fec11000
[ 0.000000] PM: Registered nosave memory: 00000000fec11000 - 00000000fee00000
[ 0.000000] PM: Registered nosave memory: 00000000fee00000 - 00000000fee01000
[ 0.000000] PM: Registered nosave memory: 00000000fee01000 - 00000000ffe00000
[ 0.000000] PM: Registered nosave memory: 00000000ffe00000 - 0000000100000000
[ 0.000000] please try 'cgroup_disable=memory' option if you don't want memory cgroups
[ 0.008515] Initializing cgroup subsys memory
[ 0.011024] TOSHIBA Satellite detected - force copy of DSDT to local memory
[ 0.794899] Freeing initrd memory: 18952k freed
[ 1.241531] Freeing unused kernel memory: 984k freed
[ 1.242041] Freeing unused kernel memory: 16k freed
[ 1.246162] Freeing unused kernel memory: 1396k freed
[ 15.955432] [fglrx] Maximum main memory to use for locked dma buffers: 3280 MBytes.
[ 18.074558] /dev/vmnet: hub 1 does not exist, allocating memory.
[ 18.217536] /dev/vmnet: hub 8 does not exist, allocating memory.
[ 19.895457] /dev/vmnet: hub 0 does not exist, allocating memory.
[ 680.823268] /dev/vmnet: hub 0 does not exist, allocating memory.
[ 920.598505] /dev/vmnet: hub 0 does not exist, allocating memory.
 
Old 01-25-2012, 06:00 PM   #10
keithbaylor
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CODE tags?
 
Old 01-25-2012, 06:14 PM   #11
eSelix
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Yes. Paste it between [ CODE ] and [ /CODE ] strings, without spaces, or use "hash" icon on the toolbar (second from left) when you are in advanced editing mode. To get this effect:
Code:
Sample of using CODE tags
Full dmesg, not only with "memory" text.

Last edited by eSelix; 01-25-2012 at 06:15 PM.
 
Old 01-25-2012, 06:31 PM   #12
keithbaylor
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code tags

Sry not quite understanding. Im learning the cmd line as I go. However I did attach the output from the dmseg. Thx
Attached Files
File Type: txt dmseg.txt (65.3 KB, 3 views)
 
Old 01-25-2012, 07:45 PM   #13
keithbaylor
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Ive got a partition I can wipe and load another os just to test the hardware. Good idea?
 
Old 01-25-2012, 07:59 PM   #14
eSelix
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Yes, try it. But I think the problem lies in BIOS as you can see this line
Code:
[    0.000000]  BIOS-e820: 00000000ffe00000 - 0000000100000000 (reserved)
showing that you have 4GB, and with my knowledge this is reported by BIOS, but I am not an expert. Check settings in BIOS. Maybe try also swaping modules of your RAM.

Last edited by eSelix; 01-25-2012 at 08:01 PM.
 
Old 01-25-2012, 08:28 PM   #15
keithbaylor
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Ok. Ill swap for some other mem and see how it goes.
 
  


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