Toda a memória não aparece com o bit Ubuntu-64

Question

Estou mostrando apenas 5,8 GB de 9 GB:

harrison@harrison-Aurora:~/Desktop$ lshw -C memory
WARNING: you should run this program as super-user.
 *-memory                
   description: System memory
   physical id: 0
   size: 5961MiB

Mas quando eu executo o lshw -C, ele mostra todos os 9GB:

[sudo] password for harrison: 
*-firmware              
   description: BIOS
   vendor: Alienware
   physical id: 0
   version: A10
   date: 07/30/2010
   size: 64KiB
   capacity: 4032KiB
   // other stuff here
   *-memory
   description: System Memory
   physical id: a
   slot: System board or motherboard
   size: 9GiB
        *-bank:0
      description: DIMM 1333 MHz (0.8 ns)
      product: KP223C-ELD
      vendor: Kingston
      physical id: 0
      serial: 43791B85
      slot: DIMM0
      size: 2GiB
      width: 64 bits
      clock: 1333MHz (0.8ns)
 *-bank:1
      description: DIMM 1333 MHz (0.8 ns)
      product: KTW149-ELD
      vendor: Kingston
      physical id: 1
      serial: B0953279
      slot: DIMM1
      size: 1GiB
      width: 64 bits
      clock: 1333MHz (0.8ns)
 *-bank:2
      description: DIMM 1333 MHz (0.8 ns)
      product: KP223C-ELD
      vendor: Kingston
      physical id: 2
      serial: 7A381B2B
      slot: DIMM2
      size: 2GiB
      width: 64 bits
      clock: 1333MHz (0.8ns)
 *-bank:3
      description: DIMM 1333 MHz (0.8 ns)
      product: KTW149-ELD
      vendor: Kingston
      physical id: 3
      serial: B0E63277
      slot: DIMM3
      size: 1GiB
      width: 64 bits
      clock: 1333MHz (0.8ns)
 *-bank:4
      description: DIMM 1333 MHz (0.8 ns)
      product: KP223C-ELD
      vendor: Kingston
      physical id: 4
      serial: 7A3B1B2B
      slot: DIMM4
      size: 2GiB
      width: 64 bits
      clock: 1333MHz (0.8ns)
 *-bank:5
      description: DIMM 1333 MHz (0.8 ns)
      product: KTW149-ELD
      vendor: Kingston
      physical id: 5
      serial: B0BF3277
      slot: DIMM5
      size: 1GiB
      width: 64 bits
      clock: 1333MHz (0.8ns)

Como posso usar todos os 9GB?

    

Answer 1

Você tem dois modelos diferentes de RAM. Tente colocar os mesmos modelos nos mesmos slots de pares correspondentes. Isso significa colocar o KP223C-ELD no DIMM0, DIMM1 e DIMM2; e o KTW149-ELD nas outras posições do DIMM.

    

Answer 2

Eu tenho todos os 9GB para aparecer. Aqui está o que eu fiz:

1. Coloque módulos de 2 GB nos bancos 0, 1, 2
2. Coloque módulos de 1 GB nos bancos 3, 4, 5