Newer (Dell??) Laptops take longer to recognize new memory?

[spacejamz]

Just got a new Dell G15 and was upgrading the memory on it...

It seems after the new DIMM modules were installed, it took a few minutes for the laptop to recognize the changes.

After putting the new memory in and plugging the laptop in, the keyboard lit up but nothing was on the screen. This lasted about 3 minutes or so, then the Dell logo appeared for a few seconds and then I finally got the message the system has recognized the amount of memory has changed. After confirming this, the laptop finally booted and I was good to go.

Up until this laptop, every time I have plugged in new memory (either desktop or laptop), the change was recognized immediately.

I had originally ordered some Corsair memory that I returned because the laptop didn't boot immediately after putting them in. Had I known to wait a few minutes, pretty sure it would have been fine.

I would have never figured this out unless I read the comments on the new Crucial DDR that I ordered (which was $15 more than the Corsair memory)...

 

[GodisanAtheist]

Isn't this a thing with DDR5, where the system has to "condition" the memory on the first boot? I've read more than a few DDR5 based system builders thinking their new machines with 32 or 64GB of memory froze or soft locked during first boot and it was really the system having to set-up the DDR5 memory modules.

 

[spacejamz]

Isn't this a thing with DDR5, where the system has to "condition" the memory on the first boot? I've read more than a few DDR5 based system builders thinking their new machines with 32 or 64GB of memory froze or soft locked during first boot and it was really the system having to set-up the DDR5 memory modules.

I had no idea :O

DDR5 systems may require training

A small number of DDR5 systems and motherboards require a period of "training" newly installed memory to work with the system and allow access to the UEFI, or otherwise to complete the system's power-on self-test (POST).

www.crucial.com

DDR5 systems may require memory 'training'​

A small number of DDR5 systems and motherboards require a period of "training" newly installed memory to work with the system and allow access to the UEFI, or otherwise to complete the system's power-on self-test (POST).
When a DDR5 system is powered on but not finishing POST, but has not returned a specific POST error either, this may be an indicator that such “training” is occurring. During this process the system firmware is configuring itself for the newly installed memory. LEDs on the motherboard or computer may or may not be active during this process. On-screen symptoms of this may be a black screen or the system pausing on a manufacturer splash screen.
If this is happening, just leave the system powered to complete this process, which in some instances has been seen to take up to 15 minutes. If this is successful the system will either begin operating normally after the elapsed time, or may require a reboot but will work normally once this is done. After this process is complete, future reboots will not require this wait, unless hardware is changed again in the future or other modifications are made in the system's BIOS or UEFI, in which case another delayed startup for this process may be seen.

 

[mpo]

AMD systems usually take 3 to 5 minutes (ymmv) to train the memory with the first boot.

This should only happen the first boot.

If the memory has to train at every boot, then you have a problem.

 

[spacejamz]

AMD systems usually take 3 to 5 minutes (ymmv) to train the memory with the first boot.

This should only happen the first boot.

If the memory has to train at every boot, then you have a problem.

It was just 1st boot after installing the new DIMM's...everything is normal now...

this G15 has an i7 13650HX chip...pretty nimble so far...