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For some reason, it doesn't see all the RAM. My laptop has 8gb installedenter image description here

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  • How is your RAM configured? Is it 4 x 2 GB sticks? – KGIII Dec 26 '20 at 16:24
  • 4gb x 2 sticks, Handle 0x0019, DMI type 17, 40 bytes Memory Device Array Handle: 0x0012 Error Information Handle: 0x0018 Total Width: 64 bits Data Width: 64 bits Size: 4096 MB Form Factor: SODIMM Handle 0x001C, DMI type 17, 40 bytes Memory Device Array Handle: 0x0012 Error Information Handle: 0x001B Total Width: 64 bits Data Width: 64 bits Size: 4096 MB Form Factor: SODIMM – c0mrad3 Dec 27 '20 at 20:34
  • I've seen this before where 1/2 of a stick of RAM goes bad while the rest works just fine. Have you considered running memtest to see if there's a hardware issue? That'd be what I would do personally as my next step. RAM is dual-sided and half can go bad, it's just really rare. It sometimes crops up on the AskUbuntu part of this site. – KGIII Dec 27 '20 at 21:00

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