Find Maximum RAM Architecture of your Server 



How do I find out the maximum RAM supported by the Dell / HP / IBM / Oracle / Sun / Intel / AMD server under Linux / Unix / HP-UX / FreeBSD / Solaris operating systems without rebooting the server or opening server case (cabinet)?

Most modern server supports 16GB, 32GB, 64GB or more RAM and has 4 or more DIMM slots. To find out what is the maximum system can support type the following command as root user:

# dmidecode -t 16

Sample outputs:
# dmidecode 2.11
SMBIOS 2.5 present.
Handle 0x0016, DMI type 16, 15 bytes
Physical Memory Array
 Location: System Board Or Motherboard
 Use: System Memory
 Error Correction Type: None
 Maximum Capacity: 64 GB
 Error Information Handle: Not Provided
 Number Of Devices: 8 
 
 You can find out currently installed memory information (DIMM and its slots) by
 typing the following command:

# dmidecode -t 17

Sample outputs:

# dmidecode 2.9
SMBIOS 2.6 present.
Handle 0x000A, DMI type 17, 28 bytes
Memory Device
    Array Handle: 0x0008
    Error Information Handle: Not Provided
    Total Width: 64 bits
    Data Width: 64 bits
    Size: 2048 MB
    Form Factor: DIMM
    Set: None
    Locator: DIMM0
    Bank Locator: BANK0
    Type: DDR2
    Type Detail: Synchronous
    Speed: 667 MHz (1.5 ns)
    Manufacturer: Manufacturer00
    Serial Number: SerNum00
    Asset Tag: AssetTagNum0
    Part Number: ModulePartNumber00
Handle 0x000C, DMI type 17, 28 bytes
Memory Device
    Array Handle: 0x0008
    Error Information Handle: Not Provided
    Total Width: Unknown
    Data Width: Unknown
    Size: No Module Installed
    Form Factor: DIMM
    Set: None
    Locator: DIMM1
    Bank Locator: BANK1
    Type: Unknown
    Type Detail: Unknown
    Speed: Unknown
    Manufacturer: Manufacturer01
    Serial Number: SerNum01
    Asset Tag: AssetTagNum1
    Part Number: ModulePartNumber01 

 

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Perl script for checking above mentioned stats is available at memconf . 

 

 

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