Как узнать информацию о RAM

Введите команду:

sudo dmidecode --type 17

или

sudo dmidecode --type 17 | more

Будет написано примерно так:

# dmidecode 2.9

SMBIOS 2.4 present.

Handle 0x0018, DMI type 17, 27 bytes

Memory Device

Array Handle: 0x0017

Error Information Handle: Not Provided

Total Width: 64 bits

Data Width: 64 bits

Size: 2048 MB

Form Factor: DIMM

Set: None

Locator: J6H1

Bank Locator: CHAN A DIMM 0

Type: DDR2

Type Detail: Synchronous

Speed: 800 MHz (1.2 ns)

Manufacturer: 0x2CFFFFFFFFFFFFFF

Serial Number: 0x00000000

Asset Tag: Unknown

Part Number: 0x5A494F4E203830302D3247422D413131382D

Handle 0x001A, DMI type 17, 27 bytes

Memory Device

Array Handle: 0x0017

Error Information Handle: Not Provided

Total Width: Unknown

Data Width: Unknown

Size: No Module Installed

Form Factor: DIMM

Set: None

Locator: J6H2

Bank Locator: CHAN A DIMM 1

Type: DDR2

Type Detail: None

Speed: Unknown

Manufacturer: NO DIMM

Serial Number: NO DIMM

Asset Tag: NO DIMM

Part Number: NO DIMM

Информация взята с http://www.cyberciti.biz/faq/check-ram-speed-linux/