CentOS 8x64 only 3,38GiB sytem RAM out of 24GiB installed

Issues related to hardware problems
lazazael
Posts: 8
Joined: 2020/09/29 19:36:45

CentOS 8x64 only 3,38GiB sytem RAM out of 24GiB installed

Post by lazazael » 2020/09/29 19:51:15

Greetings!

I'm having the problem exactly mentioned in the title. I've tried it all and reddit went silent a few days ago.
https://www.reddit.com/r/CentOS/comment ... installed/
It's a fresh install, approx. 2 weeks old. This reddit post sums it up, I don't wanna copy all the content here since it has been evolving, there are a few comments on my part also. Some bash commands shows 3,xGiB, others 24GiB also. Memtest86+ runs w/o error. I've had this system running Win10 and macOS, both used all available RAM.

Basically no one on reddit could really help me out. I don't wanna use another distro yet. Would it even matter if I switch to RHEL...

Thanks for your time and help in advance.

BShT
Posts: 327
Joined: 2019/10/09 12:31:40

Re: CentOS 8x64 only 3,38GiB sytem RAM out of 24GiB installed

Post by BShT » 2020/09/30 17:26:40

pae is for 32 bits systems

try to upgrade your BIOS and read dmesg output to see if it helps

lazazael
Posts: 8
Joined: 2020/09/29 19:36:45

Re: CentOS 8x64 only 3,38GiB sytem RAM out of 24GiB installed

Post by lazazael » 2020/09/30 17:36:04

BShT wrote:
2020/09/30 17:26:40
pae is for 32 bits systems

try to upgrade your BIOS and read dmesg output to see if it helps
Bios runs the most recent version, other than CentOS saw all 24GiB.

BShT
Posts: 327
Joined: 2019/10/09 12:31:40

Re: CentOS 8x64 only 3,38GiB sytem RAM out of 24GiB installed

Post by BShT » 2020/09/30 17:38:59

seems that you have an old gigabyte MB

try do CTRL+F1 at bios and see advanced confs

lazazael
Posts: 8
Joined: 2020/09/29 19:36:45

Re: CentOS 8x64 only 3,38GiB sytem RAM out of 24GiB installed

Post by lazazael » 2020/09/30 17:48:07

BShT wrote:
2020/09/30 17:38:59
seems that you have an old gigabyte MB

try do CTRL+F1 at bios and see advanced confs
Its a ga-z77-d3h, Im seeing the normal bios layout that you might refer as advanced. I haven't seen anything significantly more advanced yet.

BShT
Posts: 327
Joined: 2019/10/09 12:31:40

Re: CentOS 8x64 only 3,38GiB sytem RAM out of 24GiB installed

Post by BShT » 2020/09/30 20:31:58

it works at Advanced Chipset Features

lazazael
Posts: 8
Joined: 2020/09/29 19:36:45

Re: CentOS 8x64 only 3,38GiB sytem RAM out of 24GiB installed

Post by lazazael » 2020/09/30 20:53:55

BShT wrote:
2020/09/30 20:31:58
it works at Advanced Chipset Features
there a few different advanced options but not a single " advanced chipset features" entry in my bios
idk what are you tring to come up with sorry

BShT
Posts: 327
Joined: 2019/10/09 12:31:40

Re: CentOS 8x64 only 3,38GiB sytem RAM out of 24GiB installed

Post by BShT » 2020/10/01 16:52:51

look at grub and mem=

lazazael
Posts: 8
Joined: 2020/09/29 19:36:45

Re: CentOS 8x64 only 3,38GiB sytem RAM out of 24GiB installed

Post by lazazael » 2020/10/01 18:20:53

this picture is on a fresh fedora, it doesnt matter which distro out of centOS, Fedora or RHEL
dmidecode sees the 24 Gigs but it doesn't really matter...
https://imgur.com/GG1YXxJ
Image

lazazael
Posts: 8
Joined: 2020/09/29 19:36:45

Re: CentOS 8x64 only 3,38GiB sytem RAM out of 24GiB installed

Post by lazazael » 2020/10/01 18:25:09

BShT wrote:
2020/10/01 16:52:51
look at grub and mem=
/etc/grub2.cfg doesnt contain anything like "mem="

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