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How do I tell how much memory my Pi has?

Posted: Sat Apr 18, 2020 12:48 am
by soring111
How do I realize how much memory I have?

Re: How do I tell how much memory my Pi has?

Posted: Sat Apr 18, 2020 9:27 am
by bensimmo
with Raspbian installed?

type pinout at the command line (terminal).

A Pi4 without Raspbian installed (no Operating System), you'll need to read the chips.
Pi3(+) it is 1GB
Pi Zero(W) it is 0.5GB

...

Re: How do I tell how much memory my Pi has?

Posted: Sat Apr 18, 2020 9:29 am
by B.Goode
soring111 wrote:
Sat Apr 18, 2020 12:48 am
How do I realize how much memory I have?

And without an Operating System installed, read the documentation provided by Raspberry Pi themselves..
https://www.raspberrypi.org/documentati ... /#hardware

Re: How do I tell how much memory my Pi has?

Posted: Sat Apr 18, 2020 5:35 pm
by W. H. Heydt
If it's brand new in the original packaging...read the box.

Re: How do I tell how much memory my Pi has?

Posted: Sat Apr 18, 2020 6:03 pm
by jbudd
The free command gives you memory stats too

Code: Select all

pi@BlackPi:~ $ free
              total        used        free      shared  buff/cache   available
Mem:        3946976      285120     3278608       55416      383248     3481132
Swap:        102396           0      102396
The total figure is your physical memory minus the amount reserved for the GPU, in bytes.

Re: How do I tell how much memory my Pi has?

Posted: Sat Apr 18, 2020 7:40 pm
by jamesh
If it;s fully up to date, take out the SD card and reboot. Diagnostics screen should tell you. Must be connected to an HDMI display.

Re: How do I tell how much memory my Pi has?

Posted: Sun Apr 19, 2020 7:05 am
by 6by9
jamesh wrote:
Sat Apr 18, 2020 7:40 pm
If it;s fully up to date, take out the SD card and reboot. Diagnostics screen should tell you. Must be connected to an HDMI display.
Pi4 only.

Re: How do I tell how much memory my Pi has?

Posted: Sun Apr 19, 2020 8:09 am
by jamesh
6by9 wrote:
Sun Apr 19, 2020 7:05 am
jamesh wrote:
Sat Apr 18, 2020 7:40 pm
If it;s fully up to date, take out the SD card and reboot. Diagnostics screen should tell you. Must be connected to an HDMI display.
Pi4 only.
Tru dat.

Re: How do I tell how much memory my Pi has?

Posted: Sun Apr 19, 2020 9:25 am
by dividuum
Diagnostics screen should tell you.
Wow. Totally missed that. Here's how it looks like in case anyone hasn't seen it before:

Image

(I tried documenting the values here)

Re: How do I tell how much memory my Pi has?

Posted: Sun Apr 19, 2020 9:35 am
by PeterO
Yet another new feature/change that seems to have only be publicised by accident :-(
PeterO

Re: How do I tell how much memory my Pi has?

Posted: Sun Apr 19, 2020 10:53 am
by dividuum
PeterO wrote:
Sun Apr 19, 2020 9:35 am
Yet another new feature/change that seems to have only be publicised by accident :-(
PeterO
Agreed. It would be great to have some centralized feed of those awesome improvements that constantly pop up in firmware/eeprom/Linux commits as well as the forum. The rest of the eeprom improvements made along the diagnostic screen are pretty great as well.

Re: How do I tell how much memory my Pi has?

Posted: Sun Apr 19, 2020 11:22 am
by DougieLawson
dividuum wrote:
Sun Apr 19, 2020 10:53 am
PeterO wrote:
Sun Apr 19, 2020 9:35 am
Yet another new feature/change that seems to have only be publicised by accident :-(
PeterO
Agreed. It would be great to have some centralized feed of those awesome improvements that constantly pop up in firmware/eeprom/Linux commits as well as the forum. The rest of the eeprom improvements made along the diagnostic screen are pretty great as well.
This goes with getting all of the funky hidden config.txt options published. There's no sensible reasons for keeping them opaque.

Re: How do I tell how much memory my Pi has?

Posted: Sun Apr 19, 2020 2:15 pm
by jamesh
I suppose we probably should put an announcement in the announcement page. And update some docs somewhere. WIll take a look next week.

Re: How do I tell how much memory my Pi has?

Posted: Mon Apr 20, 2020 10:00 am
by timg236
Updates to beta release are published in the release notes when the binaries are pushed to git. In the last bootloader related announcement there was a link to the release notes.
Unfortunately, the thread was drowned in the noise about release names.

Official documentation follows after that and is updated depending on the results of the beta e.g. the feature might get reverted or configuration options changed.

The HDMI diagnostics screen is only available in beta-image and I wouldn't recommend that end-users install a beta for an error screen which they should never see.

Re: How do I tell how much memory my Pi has?

Posted: Mon Apr 20, 2020 10:51 am
by jamesh
OK, so have checked and this bootloader is still beta software, not officially released, which is why there is no official announcement or documentation. You should only be seeing it if you have enabled the beta firmware downloading option.