When PC3L isn't working as expected, PC3 might still function properly.
When PC3L isn't working as expected, PC3 might still function properly.
They seem to require different voltages—around 1.5 versus 1.35. The system displays a warning saying "Hey, I want PC3L" when you try to use standard PC3 RAM and it flags potential instability. After clicking enter, the boot completes without issues. Many laptops need this type of RAM, but your supply of low-voltage RAM is nearly gone. Please consider how important this warning is for your setup.
Using PC3 in a PC3L slot essentially heavily undervolts the RAM. It won't damage anything, but the warning notes it might lead to instability and errors. If you intend to continue this, running a few hours of intensive memtest would help verify if the RAM remains stable.
"keep doing" would be inaccurate. I've not kept any this way. Yeah mem testing is a good call. Nothing but time until boss get the needed hardware I suppose.