Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

I just installed Ubuntu Server 11.10 64bit and when I execute free -m it only shows a total of 24094.

This is a fairly new build and I was able to see all 32GB on Solaris 11.

         total       used       free     shared    buffers     cached
Mem:         24094        582      23511          0         11        195
-/+ buffers/cache:        375      23718
Swap:        24571          0      24571

I am running a Gigabyte 990FXA-UD5 mobo with the AMD 8150 Black Edition proc.

Any input is appreciated.

** Update **

dmidecode is showing the DIMM in the first slot as only 4096 MB

Handle 0x002A, DMI type 17, 27 bytes
Memory Device
    Array Handle: 0x0029
    Error Information Handle: Not Provided
    Total Width: 64 bits
    Data Width: 64 bits
    Size: 4096 MB
    Form Factor: DIMM
    Set: None
    Locator: A0
    Bank Locator: Bank0/1
    Type: Unknown
    Type Detail: None
    Speed: 1333 MHz (0.8 ns)
    Manufacturer:  
    Serial Number:  
    Asset Tag:  
    Part Number:  

Handle 0x002B, DMI type 17, 27 bytes
Memory Device
    Array Handle: 0x0029
    Error Information Handle: Not Provided
    Total Width: 64 bits
    Data Width: 64 bits
    Size: 8192 MB
    Form Factor: DIMM
    Set: None
    Locator: A1
    Bank Locator: Bank2/3
    Type: Unknown
    Type Detail: None
    Speed: 1333 MHz (0.8 ns)
    Manufacturer:  
    Serial Number:  
    Asset Tag:  
    Part Number:  

Handle 0x002C, DMI type 17, 27 bytes
Memory Device
    Array Handle: 0x0029
    Error Information Handle: Not Provided
    Total Width: 64 bits
    Data Width: 64 bits
    Size: 8192 MB
    Form Factor: DIMM
    Set: None
    Locator: A2
    Bank Locator: Bank4/5
    Type: Unknown
    Type Detail: None
    Speed: 1333 MHz (0.8 ns)
    Manufacturer:  
    Serial Number:  
    Asset Tag:  
    Part Number:  

Handle 0x002D, DMI type 17, 27 bytes
Memory Device
    Array Handle: 0x0029
    Error Information Handle: Not Provided
    Total Width: 64 bits
    Data Width: 64 bits
    Size: 8192 MB
    Form Factor: DIMM
    Set: None
    Locator: A3
    Bank Locator: Bank6/7
    Type: Unknown
    Type Detail: None
    Speed: 1333 MHz (0.8 ns)
    Manufacturer:  
    Serial Number:  
    Asset Tag:  
    Part Number:     
share|improve this question
add comment

1 Answer 1

What is the output of:

sudo lshw -C memory

I was having similar issues with Ubuntu not detecting my RAM but it turned out to have become physically loose. Weird I know.

Try switching the RAM between DIMMs, is it the RAM or the DIMM? OR Ubuntu? Ya never know!

share|improve this answer
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.