TX2i RAM size

Autonomous Machines Jetson & Embedded Systems Jetson TX2
1

Hi,

I noticed that in TX2i module size of RAM is different from size of RAM in TX2 module.

6.68GB available in TX2i module.
And 7.67GB is available in TX2 module.

The technical specifications of both modules claimed 8GB of RAM.

Then why there is a difference in sizes of RAM of different modules?
And why is there so little RAM available in the TX2i module?

2

hello MikhailRnD,

may I know which commands you’re used to check the RAM information.
could you please also share the message of below two commands. thanks
for example,

<i>#meminfo</i>
$ cat /proc/meminfo | grep MemTotal

<i>#lshw</i>
$ sudo lshw | grep "System Memory" -A 3
3

hello MikhailRnD,

Maybe because ECC Ram check is enabled by default on TX2i.

4

hello JerryChang,

Last time I used htop utility to check RAM information.

This are messages of commands you requested on TX2i

$ cat /proc/meminfo | grep MemTotal
MemTotal:        7008336 kB
$ sudo lshw | grep "System Memory" -A 3

(various messages flickered during the lshw command, but when the execution was completed, there was no message)

And messages on TX2

$ cat /proc/meminfo | grep MemTotal
MemTotal:        8041464 kB
$ sudo lshw | grep "System Memory" -A 3

(there also were no messages after lshw command execution)

5

hello MikhailRnD,

that’s due to ECC, TX2i available memory size vary base on ECC ON or OFF.
please also refer to Topic 1068951 for details.
thanks