CPU + RAM compatibility

[Quetzalii]

Afternoon folks!

 

All in all, I may or may not have screwed up because of a friend's recommendation. I have an Intel Core i5-7300HQ on a Dell Inspiron 15 7000 Gaming Laptop, the stock RAM and HDD were a 1x8 GB DDR4-2400 and a 1TB HDD mechanical Disk; I decided to upgrade both under the same brand, Crucial, ending up with 2x8GB DDR4-2666 RAM and a 250GB MX500 SSD. Both of them were installed two weeks prior to this post. The OS (W10) used to be on the HDD and is now on the SSD.

 

The thing is, for a few days now I've experienced some oddities during the bootup and after waking it up. The BIOS Screen Pattern is different compared to the time before the hardware upgrade. I would like to note I changed the UEFI mode and start-up pattern, And regarding the wake-up process, the computer would usually freeze for about 2 to 4 minutes until it recovers. If you need any pictures for reference do let me know.