I managed to salvage a 8GB normal DDR3 from my probook 4530s that just died on me and when I'm trying it in the 450 G1 it works, but when I start up, HP bios gives me a warning for inappropriate memory and asks me if I want to continue of shutdown
If i continue it starts up without any problem and I can use it without any crash, but I'm afraid it might affect the motherboard
Thank you in advance for your answers and sorry for my english, i'm not native speaker
No you can't. If you try the BIOS presents you a text screen and freezes.
It is my understanding that any Haswell laptop in fact needs DDR3L ram. In Ivy bridge models, DDR3L is supported but not mandatory. Still you can't mix DDR3 and DDR3L on the same machine.