Find the answer to your Linux question:
Results 1 to 6 of 6
Like Tree1Likes
  • 1 Post By moksha
Hi folks, I expect to check the RAM speed and type. I ran following command; $ sudo dmidecode 2.9 Code: SMBIOS 2.5 present. 65 structures occupying 2385 bytes. Table at ...
Enjoy an ad free experience by logging in. Not a member yet? Register.
  1. #1
    Linux Guru
    Join Date
    Sep 2004
    Posts
    1,792

    How to check RAM detail


    Hi folks,

    I expect to check the RAM speed and type. I ran following command;

    $ sudo dmidecode 2.9
    Code:
    SMBIOS 2.5 present.
    65 structures occupying 2385 bytes.
    Table at 0x000F06E0.
    
    Handle 0x0000, DMI type 0, 24 bytes
    BIOS Information
    	Vendor: American Megatrends Inc.
    	Version: 2303   
    	Release Date: 11/19/2009
    	Address: 0xF0000
    	Runtime Size: 64 kB
    	ROM Size: 1024 kB
    	Characteristics:
    		ISA is supported
    		PCI is supported
    		PNP is supported
    		APM is supported
    		BIOS is upgradeable
    		BIOS shadowing is allowed
    		ESCD support is available
    		Boot from CD is supported
    		Selectable boot is supported
    		BIOS ROM is socketed
    		EDD is supported
    		5.25"/1.2 MB floppy services are supported (int 13h)
    		3.5"/720 KB floppy services are supported (int 13h)
    		3.5"/2.88 MB floppy services are supported (int 13h)
    		Print screen service is supported (int 5h)
    		8042 keyboard services are supported (int 9h)
    		Serial services are supported (int 14h)
    		Printer services are supported (int 17h)
    		CGA/mono video services are supported (int 10h)
    		ACPI is supported
    		USB legacy is supported
    		LS-120 boot is supported
    		ATAPI Zip drive boot is supported
    		BIOS boot specification is supported
    		Targeted content distribution is supported
    	BIOS Revision: 8.15
    
    Handle 0x0001, DMI type 1, 27 bytes
    System Information
    	Manufacturer: System manufacturer
    	Product Name: System Product Name
    	Version: System Version
    	Serial Number: System Serial Number
    	UUID: 204B001E-8C00-01F2-21DA-00261844B61A
    	Wake-up Type: Power Switch
    	SKU Number: To Be Filled By O.E.M.
    	Family: To Be Filled By O.E.M.
    
    Handle 0x0002, DMI type 2, 15 bytes
    Base Board Information
    	Manufacturer: ASUSTeK Computer INC.
    	Product Name: M4A78T-E
    	Version: Rev 1.xx
    	Serial Number: MS1C97B06200284
    	Asset Tag: To Be Filled By O.E.M.
    	Features:
    		Board is a hosting board
    		Board is replaceable
    	Location In Chassis: To Be Filled By O.E.M.
    	Chassis Handle: 0x0003
    	Type: Motherboard
    	Contained Object Handles: 0
    
    Handle 0x0003, DMI type 3, 21 bytes
    Chassis Information
    	Manufacturer: Chassis Manufacture
    	Type: Desktop
    	Lock: Not Present
    	Version: Chassis Version
    	Serial Number: Chassis Serial Number
    	Asset Tag: Asset-1234567890
    	Boot-up State: Safe
    	Power Supply State: Safe
    	Thermal State: Safe
    	Security Status: None
    	OEM Information: 0x00000001
    	Height: Unspecified
    	Number Of Power Cords: 1
    	Contained Elements: 0
    
    Handle 0x0004, DMI type 4, 40 bytes
    Processor Information
    	Socket Designation: AM3
    	Type: Central Processor
    	Family: <OUT OF SPEC>
    	Manufacturer: AMD              
    	ID: 43 0F 10 00 FF FB 8B 17
    	Version: AMD Phenom(tm) II X4 955 Processor                  
    	Voltage: 1.5 V
    	External Clock: 200 MHz
    	Max Speed: 3200 MHz
    	Current Speed: 3200 MHz
    	Status: Populated, Enabled
    	Upgrade: Other
    	L1 Cache Handle: 0x0005
    	L2 Cache Handle: 0x0006
    	L3 Cache Handle: 0x0007
    	Serial Number: To Be Filled By O.E.M.
    	Asset Tag: To Be Filled By O.E.M.
    	Part Number: To Be Filled By O.E.M.
    	Core Count: 4
    	Core Enabled: 4
    	Thread Count: 4
    	Characteristics:
    		64-bit capable
    
    Handle 0x0005, DMI type 7, 19 bytes
    Cache Information
    	Socket Designation: L1-Cache
    	Configuration: Enabled, Not Socketed, Level 1
    	Operational Mode: Varies With Memory Address
    	Location: Internal
    	Installed Size: 512 KB
    	Maximum Size: 512 KB
    	Supported SRAM Types:
    		Pipeline Burst
    	Installed SRAM Type: Pipeline Burst
    	Speed: Unknown
    	Error Correction Type: Single-bit ECC
    	System Type: Data
    	Associativity: 4-way Set-associative
    
    Handle 0x0006, DMI type 7, 19 bytes
    Cache Information
    	Socket Designation: L2-Cache
    	Configuration: Enabled, Not Socketed, Level 2
    	Operational Mode: Varies With Memory Address
    	Location: Internal
    	Installed Size: 2048 KB
    	Maximum Size: 2048 KB
    	Supported SRAM Types:
    		Pipeline Burst
    	Installed SRAM Type: Pipeline Burst
    	Speed: Unknown
    	Error Correction Type: Single-bit ECC
    	System Type: Unified
    	Associativity: 4-way Set-associative
    
    Handle 0x0007, DMI type 7, 19 bytes
    Cache Information
    	Socket Designation: L3-Cache
    	Configuration: Enabled, Not Socketed, Level 3
    	Operational Mode: Varies With Memory Address
    	Location: Internal
    	Installed Size: 6144 KB
    	Maximum Size: 6144 KB
    	Supported SRAM Types:
    		Pipeline Burst
    	Installed SRAM Type: Pipeline Burst
    	Speed: Unknown
    	Error Correction Type: Single-bit ECC
    	System Type: Unified
    	Associativity: 4-way Set-associative
    
    Handle 0x0008, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: PS/2
    	Internal Connector Type: None
    	External Reference Designator: Keyboard
    	External Connector Type: PS/2
    	Port Type: Keyboard Port
    
    Handle 0x0009, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: USB12
    	Internal Connector Type: None
    	External Reference Designator: USB12
    	External Connector Type: Access Bus (USB)
    	Port Type: USB
    
    Handle 0x000A, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: USB34
    	Internal Connector Type: None
    	External Reference Designator: USB34
    	External Connector Type: Access Bus (USB)
    	Port Type: USB
    
    Handle 0x000B, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: On Board VGA
    	Internal Connector Type: None
    	External Reference Designator: On Board VGA
    	External Connector Type: DB-15 female
    	Port Type: Video Port
    
    Handle 0x000C, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: LAN1
    	Internal Connector Type: None
    	External Reference Designator: LAN1
    	External Connector Type: RJ-45
    	Port Type: Network Port
    
    Handle 0x000D, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: SPDIF_O1
    	Internal Connector Type: None
    	External Reference Designator: SPDIF_O1
    	External Connector Type: Mini Jack (headphones)
    	Port Type: Audio Port
    
    Handle 0x000E, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: HDMI
    	Internal Connector Type: None
    	External Reference Designator: HDMI
    	External Connector Type: Other
    	Port Type: Audio Port
    
    Handle 0x000F, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: Line In
    	Internal Connector Type: None
    	External Reference Designator: Line In
    	External Connector Type: Mini Jack (headphones)
    	Port Type: Audio Port
    
    Handle 0x0010, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: Line Out
    	Internal Connector Type: None
    	External Reference Designator: Line Out
    	External Connector Type: Mini Jack (headphones)
    	Port Type: Audio Port
    
    Handle 0x0011, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: Mic In
    	Internal Connector Type: None
    	External Reference Designator: Mic In
    	External Connector Type: Mini Jack (headphones)
    	Port Type: Audio Port
    
    Handle 0x0012, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: Center Out
    	Internal Connector Type: None
    	External Reference Designator: Center Out
    	External Connector Type: Mini Jack (headphones)
    	Port Type: Audio Port
    
    Handle 0x0013, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: Surround Out
    	Internal Connector Type: None
    	External Reference Designator: Surround Out
    	External Connector Type: Mini Jack (headphones)
    	Port Type: Audio Port
    
    Handle 0x0014, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: Side Surround
    	Internal Connector Type: None
    	External Reference Designator: Side Surround Out
    	External Connector Type: Mini Jack (headphones)
    	Port Type: Audio Port
    
    Handle 0x0015, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: MAIN POWER
    	Internal Connector Type: Other
    	External Reference Designator: Not Specified
    	External Connector Type: None
    	Port Type: Other
    
    Handle 0x0016, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: CPU_FAN
    	Internal Connector Type: Other
    	External Reference Designator: Not Specified
    	External Connector Type: None
    	Port Type: Other
    
    Handle 0x0017, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: CHA_FAN1
    	Internal Connector Type: Other
    	External Reference Designator: Not Specified
    	External Connector Type: None
    	Port Type: Other
    
    Handle 0x0018, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: CHA_FAN2
    	Internal Connector Type: Other
    	External Reference Designator: Not Specified
    	External Connector Type: None
    	Port Type: Other
    
    Handle 0x0019, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: USB56
    	Internal Connector Type: Access Bus (USB)
    	External Reference Designator: Not Specified
    	External Connector Type: None
    	Port Type: USB
    
    Handle 0x001A, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: USB78
    	Internal Connector Type: Access Bus (USB)
    	External Reference Designator: Not Specified
    	External Connector Type: None
    	Port Type: USB
    
    Handle 0x001B, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: USB910
    	Internal Connector Type: Access Bus (USB)
    	External Reference Designator: Not Specified
    	External Connector Type: None
    	Port Type: USB
    
    Handle 0x001C, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: USB1112
    	Internal Connector Type: Access Bus (USB)
    	External Reference Designator: Not Specified
    	External Connector Type: None
    	Port Type: USB
    
    Handle 0x001D, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: SATA1
    	Internal Connector Type: SAS/SATA Plug Receptacle
    	External Reference Designator: Not Specified
    	External Connector Type: None
    	Port Type: SATA
    
    Handle 0x001E, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: SATA2
    	Internal Connector Type: SAS/SATA Plug Receptacle
    	External Reference Designator: Not Specified
    	External Connector Type: None
    	Port Type: SATA
    
    Handle 0x001F, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: SATA3
    	Internal Connector Type: SAS/SATA Plug Receptacle
    	External Reference Designator: Not Specified
    	External Connector Type: None
    	Port Type: SATA
    
    Handle 0x0020, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: SATA4
    	Internal Connector Type: SAS/SATA Plug Receptacle
    	External Reference Designator: Not Specified
    	External Connector Type: None
    	Port Type: SATA
    
    Handle 0x0021, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: SATA5
    	Internal Connector Type: SAS/SATA Plug Receptacle
    	External Reference Designator: Not Specified
    	External Connector Type: None
    	Port Type: SATA
    
    Handle 0x0022, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: ESATA
    	Internal Connector Type: SAS/SATA Plug Receptacle
    	External Reference Designator: Not Specified
    	External Connector Type: None
    	Port Type: SATA
    
    Handle 0x0023, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: CDIN
    	Internal Connector Type: On Board Sound Input From CD-ROM
    	External Reference Designator: Not Specified
    	External Connector Type: None
    	Port Type: Audio Port
    
    Handle 0x0024, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: AAFP
    	Internal Connector Type: Mini Jack (headphones)
    	External Reference Designator: Not Specified
    	External Connector Type: None
    	Port Type: Audio Port
    
    Handle 0x0025, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: SPDIF_OUT
    	Internal Connector Type: Mini Jack (headphones)
    	External Reference Designator: Not Specified
    	External Connector Type: None
    	Port Type: Audio Port
    
    Handle 0x0026, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: COM1
    	Internal Connector Type: 9 Pin Dual Inline (pin 10 cut)
    	External Reference Designator: Not Specified
    	External Connector Type: None
    	Port Type: Other
    
    Handle 0x0027, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: PRI_IDE
    	Internal Connector Type: On Board IDE
    	External Reference Designator: Not Specified
    	External Connector Type: None
    	Port Type: Other
    
    Handle 0x0028, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: FLOPPY
    	Internal Connector Type: On Board Floppy
    	External Reference Designator: Not Specified
    	External Connector Type: None
    	Port Type: Other
    
    Handle 0x0029, DMI type 8, 9 bytes
    Port Connector Information
    	Internal Reference Designator: PANEL
    	Internal Connector Type: Other
    	External Reference Designator: Not Specified
    	External Connector Type: None
    	Port Type: Other
    
    Handle 0x002A, DMI type 9, 13 bytes
    System Slot Information
    	Designation: PCIEX16_1
    	Type: x16 PCI Express
    	Current Usage: In Use
    	Length: Short
    	ID: 2
    	Characteristics:
    		3.3 V is provided
    		Opening is shared
    		PME signal is supported
    
    Handle 0x002B, DMI type 9, 13 bytes
    System Slot Information
    	Designation: PCIEX16_2
    	Type: x16 PCI Express
    	Current Usage: Available
    	Length: Short
    	ID: 2
    	Characteristics:
    		3.3 V is provided
    		Opening is shared
    		PME signal is supported
    
    Handle 0x002C, DMI type 9, 13 bytes
    System Slot Information
    	Designation: PCIEX1_1
    	Type: x1 PCI Express
    	Current Usage: Available
    	Length: Short
    	ID: 4
    	Characteristics:
    		3.3 V is provided
    		Opening is shared
    		PME signal is supported
    
    Handle 0x002D, DMI type 9, 13 bytes
    System Slot Information
    	Designation: PCIEX1_2
    	Type: x1 PCI Express
    	Current Usage: Available
    	Length: Short
    	ID: 5
    	Characteristics:
    		3.3 V is provided
    		Opening is shared
    		PME signal is supported
    
    Handle 0x002E, DMI type 9, 13 bytes
    System Slot Information
    	Designation: PCI1
    	Type: 32-bit PCI
    	Current Usage: Available
    	Length: Short
    	ID: 13
    	Characteristics:
    		3.3 V is provided
    		Opening is shared
    		PME signal is supported
    
    Handle 0x002F, DMI type 9, 13 bytes
    System Slot Information
    	Designation: PCI2
    	Type: 32-bit PCI
    	Current Usage: Available
    	Length: Short
    	ID: 14
    	Characteristics:
    		3.3 V is provided
    		Opening is shared
    		PME signal is supported
    
    Handle 0x0030, DMI type 10, 6 bytes
    On Board Device Information
    	Type: Video
    	Status: Enabled
    	Description:   To Be Filled By O.E.M.
    
    Handle 0x0031, DMI type 11, 5 bytes
    OEM Strings
    	String 1: 00261844B61A
    	String 2: To Be Filled By O.E.M.
    	String 3: To Be Filled By O.E.M.
    	String 4: To Be Filled By O.E.M.
    
    Handle 0x0032, DMI type 13, 22 bytes
    BIOS Language Information
    	Installable Languages: 1
    		en|US|iso8859-1
    	Currently Installed Language: en|US|iso8859-1
    
    Handle 0x0033, DMI type 15, 35 bytes
    System Event Log
    	Area Length: 4 bytes
    	Header Start Offset: 0x0000
    	Header Length: 2 bytes
    	Data Start Offset: 0x0002
    	Access Method: Indexed I/O, one 16-bit index port, one 8-bit data port
    	Access Address: Index 0x046A, Data 0x046C
    	Status: Invalid, Not Full
    	Change Token: 0x00000000
    	Header Format: No Header
    	Supported Log Type Descriptors: 6
    	Descriptor 1: End of log
    	Data Format 1: OEM-specific
    	Descriptor 2: End of log
    	Data Format 2: OEM-specific
    	Descriptor 3: End of log
    	Data Format 3: OEM-specific
    	Descriptor 4: End of log
    	Data Format 4: OEM-specific
    	Descriptor 5: End of log
    	Data Format 5: OEM-specific
    	Descriptor 6: End of log
    	Data Format 6: OEM-specific
    
    Handle 0x0034, DMI type 16, 15 bytes
    Physical Memory Array
    	Location: System Board Or Motherboard
    	Use: System Memory
    	Error Correction Type: None
    	Maximum Capacity: 8 GB
    	Error Information Handle: Not Provided
    	Number Of Devices: 4
    
    Handle 0x0035, DMI type 19, 15 bytes
    Memory Array Mapped Address
    	Starting Address: 0x00000000000
    	Ending Address: 0x0022FFFFFFF
    	Range Size: 8960 MB
    	Physical Array Handle: 0x0034
    	Partition Width: 0
    
    Handle 0x0036, DMI type 17, 27 bytes
    Memory Device
    	Array Handle: 0x0034
    	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: DDR
    	Type Detail: Synchronous
    	Speed: 1333 MHz (0.8 ns)
    	Manufacturer: Manufacturer00
    	Serial Number: SerNum00
    	Asset Tag: AssetTagNum0
    	Part Number: ModulePartNumber00
    
    Handle 0x0037, DMI type 20, 19 bytes
    Memory Device Mapped Address
    	Starting Address: 0x00000000000
    	Ending Address: 0x0007FFFFFFF
    	Range Size: 2 GB
    	Physical Device Handle: 0x0036
    	Memory Array Mapped Address Handle: 0x0035
    	Partition Row Position: 1
    
    Handle 0x0038, DMI type 17, 27 bytes
    Memory Device
    	Array Handle: 0x0034
    	Error Information Handle: Not Provided
    	Total Width: 64 bits
    	Data Width: 64 bits
    	Size: 2048 MB
    	Form Factor: DIMM
    	Set: None
    	Locator: DIMM1
    	Bank Locator: BANK1
    	Type: DDR
    	Type Detail: Synchronous
    	Speed: 1333 MHz (0.8 ns)
    	Manufacturer: Manufacturer01
    	Serial Number: SerNum01
    	Asset Tag: AssetTagNum1
    	Part Number: ModulePartNumber01
    
    Handle 0x0039, DMI type 20, 19 bytes
    Memory Device Mapped Address
    	Starting Address: 0x00080000000
    	Ending Address: 0x000FFFFFFFF
    	Range Size: 2 GB
    	Physical Device Handle: 0x0038
    	Memory Array Mapped Address Handle: 0x0035
    	Partition Row Position: 1
    
    Handle 0x003A, DMI type 17, 27 bytes
    Memory Device
    	Array Handle: 0x0034
    	Error Information Handle: Not Provided
    	Total Width: 64 bits
    	Data Width: 64 bits
    	Size: 2048 MB
    	Form Factor: DIMM
    	Set: None
    	Locator: DIMM2
    	Bank Locator: BANK2
    	Type: DDR
    	Type Detail: Synchronous
    	Speed: 1333 MHz (0.8 ns)
    	Manufacturer: Manufacturer02
    	Serial Number: SerNum02
    	Asset Tag: AssetTagNum2
    	Part Number: ModulePartNumber02
    
    Handle 0x003B, DMI type 20, 19 bytes
    Memory Device Mapped Address
    	Starting Address: 0x00100000000
    	Ending Address: 0x0017FFFFFFF
    	Range Size: 2 GB
    	Physical Device Handle: 0x003A
    	Memory Array Mapped Address Handle: 0x0035
    	Partition Row Position: 1
    
    Handle 0x003C, DMI type 17, 27 bytes
    Memory Device
    	Array Handle: 0x0034
    	Error Information Handle: Not Provided
    	Total Width: 64 bits
    	Data Width: 64 bits
    	Size: 2048 MB
    	Form Factor: DIMM
    	Set: None
    	Locator: DIMM3
    	Bank Locator: BANK3
    	Type: DDR
    	Type Detail: Synchronous
    	Speed: 1333 MHz (0.8 ns)
    	Manufacturer: Manufacturer03
    	Serial Number: SerNum03
    	Asset Tag: AssetTagNum3
    	Part Number: ModulePartNumber03
    
    Handle 0x003D, DMI type 20, 19 bytes
    Memory Device Mapped Address
    	Starting Address: 0x00180000000
    	Ending Address: 0x001FFFFFFFF
    	Range Size: 2 GB
    	Physical Device Handle: 0x003C
    	Memory Array Mapped Address Handle: 0x0035
    	Partition Row Position: 1
    
    Handle 0x003E, DMI type 32, 20 bytes
    System Boot Information
    	Status: No errors detected
    
    Handle 0x003F, DMI type 139, 94 bytes
    OEM-specific Type
    	Header and Data:
    		8B 5E 3F 00 00 1E 8C 00 01 F2 21 DA 04 04 32 55
    		F8 00 A2 02 A1 00 40 63 43 10 84 83 03 DF 40 80
    		00 20 00 73 3C 10 08 00 60 0F 43 10 15 04 20 00
    		3C 10 00 00 00 43 10 00 00 00 00 00 00 00 00 00
    		00 00 00 00 DA 21 F2 FF FF 8C 1E 00 04 00 00 23
    		33 00 00 00 00 00 00 00 00 00 00 00 00 01
    	Strings:
    		V1394GUID
    
    Handle 0x0040, DMI type 127, 4 bytes
    End Of Table
    To my surprise it prints
    Code:
    Type: DDR
    	Type Detail: Synchronous
    	Speed: 1333 MHz (0.8 ns)
    	Manufacturer: Manufacturer03
    	Serial Number: SerNum03
    	Asset Tag: AssetTagNum3
    	Part Number: ModulePartNumber03
    IIRC I have A-DATA 8G DDR2 1333 RAM on board. Please help. TIA

    B.R.
    satimis

  2. #2
    Just Joined!
    Join Date
    Jul 2010
    Posts
    25
    lshw -short -C memory
    satimis likes this.

  3. #3
    Linux Guru
    Join Date
    Sep 2004
    Posts
    1,792
    Quote Originally Posted by moksha View Post
    lshw -short -C memory
    Hi,

    Thanks for your advice.

    $ sudo lshw -short -C memory
    Code:
    [sudo] password for satimis:
    H/W path         Device      Class       Description
    ====================================================
    /0/0                         memory      64KiB BIOS
    /0/4/5                       memory      512KiB L1 cache
    /0/4/6                       memory      2MiB L2 cache
    /0/4/7                       memory      6MiB L3 cache
    /0/34                        memory      8GiB System Memory
    /0/34/0                      memory      2GiB DIMM DDR Synchronous 1333 MHz (0.8
    /0/34/1                      memory      2GiB DIMM DDR Synchronous 1333 MHz (0.8
    /0/34/2                      memory      2GiB DIMM DDR Synchronous 1333 MHz (0.8
    /0/34/3                      memory      2GiB DIMM DDR Synchronous 1333 MHz (0.8
    It only shows DDR NOT DDR2

    B.R.
    satimis

  4. #4
    Just Joined!
    Join Date
    Jul 2010
    Posts
    25
    check it visually see DDR2 SDRAM - Wikipedia, the free encyclopedia

    DDR, DDR2, DDR 3 all have different notch locations

  5. #5
    Linux Guru
    Join Date
    Sep 2004
    Posts
    1,792
    Quote Originally Posted by moksha View Post
    check it visually see DDR2 SDRAM - Wikipedia, the free encyclopedia

    DDR, DDR2, DDR 3 all have different notch locations

    Thanks for your link.

    Backward compatibility

    Diagram:-
    DDR, DDR2 and DDR3 for Desktop PCs Comparison Graphic

    DDR2 DIMMs are not designed to be backward compatible with DDR DIMMs. The notch on DDR2 DIMMs is in a different position from DDR DIMMs, and the pin density is higher than DDR DIMMs in desktops. DDR2 is a 240-pin module, DDR is a 184-pin module.


    On DDR3 SDRAM
    DDR3 SDRAM - Wikipedia, the free encyclopedia
    DDR3 DIMMs have 240 pins and are electrically incompatible with DDR2

    Is there a command to check RAM displaying DDR/DDR2/DDR3 ? TIA

    B.R.
    satimis

  6. #6
    Just Joined!
    Join Date
    Jul 2010
    Posts
    25
    I am not aware of one, usually there is a sticker on the side of the sticks that will also give you the details you want.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •