I've tried the [Fn] test by holding the Fn button while powering on the laptop. After a minute I get a set of 5 musical notes in a row that repeats 2 or 3 times, followed by a singular note 3 times, and then the muscial cycle repeats.

The issue could be due to an application or a driver as the system runs properly in Safe Mode and with services disabled in Normal Mode. Vostro 430 supports DDR3-1333MHz PC3-10600 modules and the Crucial modules seems to be compatible as per the information provided on their website.

The left USB 3.0 on my Latitude E6530 does not work when I connect a USB 3.0 device to it. If I plug a USB 3.0 device into it after Windows has started, it does not recognize anything being connected in that port. If I connect a USB 3.