How To Find Out Maximum Supported RAM In Linux

Find Out Maximum Supported RAM In Linux

2 Responses

  1. David Okwii says:

    Great tip over there. Thanks.

  2. pooky2483 says:

    Something is seriously wrong here. I KNOW I have 32Gb installed, yet this command tells me I only have 8Gb installed and can go up to only 16Gb.

    Getting SMBIOS data from sysfs.
    SMBIOS 2.5 present.

    Handle 0x0032, DMI type 16, 15 bytes
    Physical Memory Array
    Location: System Board Or Motherboard
    Use: System Memory
    Error Correction Type: None
    Maximum Capacity: 16 GB
    Error Information Handle: Not Provided
    Number Of Devices: 4

    This is the currently installed RAM stats

    Getting SMBIOS data from sysfs.
    SMBIOS 2.5 present.

    Handle 0x0034, DMI type 17, 27 bytes
    Memory Device
    Array Handle: 0x0032
    Error Information Handle: Not Provided
    Total Width: 64 bits
    Data Width: 64 bits
    Size: 8192 MB
    Form Factor: DIMM
    Set: None
    Locator: DIMM0
    Bank Locator: BANK0
    Type: Other
    Type Detail: Synchronous
    Speed: 1333 MHz
    Manufacturer: Manufacturer0
    Serial Number: SerNum0
    Asset Tag: AssetTagNum0
    Part Number: PartNum0

    Handle 0x0036, DMI type 17, 27 bytes
    Memory Device
    Array Handle: 0x0032
    Error Information Handle: Not Provided
    Total Width: 64 bits
    Data Width: 64 bits
    Size: 8192 MB
    Form Factor: DIMM
    Set: None
    Locator: DIMM1
    Bank Locator: BANK1
    Type: Other
    Type Detail: Synchronous
    Speed: 1333 MHz
    Manufacturer: Manufacturer1
    Serial Number: SerNum1
    Asset Tag: AssetTagNum1
    Part Number: PartNum1

    Handle 0x0038, DMI type 17, 27 bytes
    Memory Device
    Array Handle: 0x0032
    Error Information Handle: Not Provided
    Total Width: 64 bits
    Data Width: 64 bits
    Size: 8192 MB
    Form Factor: DIMM
    Set: None
    Locator: DIMM2
    Bank Locator: BANK2
    Type: Other
    Type Detail: Synchronous
    Speed: 1333 MHz
    Manufacturer: Manufacturer2
    Serial Number: SerNum2
    Asset Tag: AssetTagNum2
    Part Number: PartNum2

    Handle 0x003A, DMI type 17, 27 bytes
    Memory Device
    Array Handle: 0x0032
    Error Information Handle: Not Provided
    Total Width: 64 bits
    Data Width: 64 bits
    Size: 8192 MB
    Form Factor: DIMM
    Set: None
    Locator: DIMM3
    Bank Locator: BANK3
    Type: Other
    Type Detail: Synchronous
    Speed: 1333 MHz
    Manufacturer: Manufacturer3
    Serial Number: SerNum3
    Asset Tag: AssetTagNum3
    Part Number: PartNum3

    I then used the following command to check…
    sudo lshw -class memory

    *-firmware
    description: BIOS
    vendor: American Megatrends Inc.
    physical id: 0
    version: 2101
    date: 12/02/2014
    size: 64KiB
    capacity: 1984KiB
    capabilities: isa pci pnp apm upgrade shadowing escd cdboot bootselect socketedrom edd int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int9keyboard int14serial int17printer int10video acpi usb ls120boot zipboot biosbootspecification
    *-cache:0
    description: L1 cache
    physical id: 5
    slot: L1-Cache
    size: 512KiB
    capacity: 512KiB
    clock: 1GHz (1.0ns)
    capabilities: pipeline-burst internal write-back unified
    configuration: level=1
    *-cache:1
    description: L2 cache
    physical id: 6
    slot: L2-Cache
    size: 2MiB
    capacity: 2MiB
    clock: 1GHz (1.0ns)
    capabilities: pipeline-burst internal write-back unified
    configuration: level=2
    *-cache:2
    description: L3 cache
    physical id: 7
    slot: L3-Cache
    size: 6MiB
    capacity: 6MiB
    clock: 1GHz (1.0ns)
    capabilities: pipeline-burst internal write-back unified
    configuration: level=3
    *-memory
    description: System Memory
    physical id: 32
    slot: System board or motherboard
    size: 32GiB
    *-bank:0
    description: DIMMProject-Id-Version: lshwReport-Msgid-Bugs-To: FULL NAME POT-Creation-Date: 2009-10-08 14:02+0200PO-Revision-Date: 2012-02-05 00:26+0000Last-Translator: Andi Chandler Language-Team: English (United Kingdom) MIME-Version: 1.0Content-Type: text/plain; charset=UTF-8Content-Transfer-Encoding: 8bitX-Launchpad-Export-Date: 2016-06-27 17:08+0000X-Generator: Launchpad (build 18115) Synchronous 1333 MHz (0.8 ns)
    product: PartNum0
    vendor: Manufacturer0
    physical id: 0
    serial: SerNum0
    slot: DIMM0
    size: 8GiB
    width: 64 bits
    clock: 1333MHz (0.8ns)
    *-bank:1
    description: DIMMProject-Id-Version: lshwReport-Msgid-Bugs-To: FULL NAME POT-Creation-Date: 2009-10-08 14:02+0200PO-Revision-Date: 2012-02-05 00:26+0000Last-Translator: Andi Chandler Language-Team: English (United Kingdom) MIME-Version: 1.0Content-Type: text/plain; charset=UTF-8Content-Transfer-Encoding: 8bitX-Launchpad-Export-Date: 2016-06-27 17:08+0000X-Generator: Launchpad (build 18115) Synchronous 1333 MHz (0.8 ns)
    product: PartNum1
    vendor: Manufacturer1
    physical id: 1
    serial: SerNum1
    slot: DIMM1
    size: 8GiB
    width: 64 bits
    clock: 1333MHz (0.8ns)
    *-bank:2
    description: DIMMProject-Id-Version: lshwReport-Msgid-Bugs-To: FULL NAME POT-Creation-Date: 2009-10-08 14:02+0200PO-Revision-Date: 2012-02-05 00:26+0000Last-Translator: Andi Chandler Language-Team: English (United Kingdom) MIME-Version: 1.0Content-Type: text/plain; charset=UTF-8Content-Transfer-Encoding: 8bitX-Launchpad-Export-Date: 2016-06-27 17:08+0000X-Generator: Launchpad (build 18115) Synchronous 1333 MHz (0.8 ns)
    product: PartNum2
    vendor: Manufacturer2
    physical id: 2
    serial: SerNum2
    slot: DIMM2
    size: 8GiB
    width: 64 bits
    clock: 1333MHz (0.8ns)
    *-bank:3
    description: DIMMProject-Id-Version: lshwReport-Msgid-Bugs-To: FULL NAME POT-Creation-Date: 2009-10-08 14:02+0200PO-Revision-Date: 2012-02-05 00:26+0000Last-Translator: Andi Chandler Language-Team: English (United Kingdom) MIME-Version: 1.0Content-Type: text/plain; charset=UTF-8Content-Transfer-Encoding: 8bitX-Launchpad-Export-Date: 2016-06-27 17:08+0000X-Generator: Launchpad (build 18115) Synchronous 1333 MHz (0.8 ns)
    product: PartNum3
    vendor: Manufacturer3
    physical id: 3
    serial: SerNum3
    slot: DIMM3
    size: 8GiB
    width: 64 bits
    clock: 1333MHz (0.8ns)

    So… something is wrong somewhere!!!

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.