Get and read all of the documentation relating to the boot-time “BIOS” settings before messing around. Only change settings if you understand what the results of any changes mean. Diagnostics? Windoze?
Look on the bright side. If you “brick” your “SSD - 500GB Sata III”, you can get a Class 40 NVMe SSD.
Class 20 drives denoted mainstream SATA SSDs. These are the typical SSDs found in many client platforms and are suitable for workstation customers who want quiet, fast, and reliable drives but don’t necessarily need the highest performance.
Class 30 drives represent the highest performing SATA SSDs. Initially when we introduced the classification system, there were quite many models of Class 30 SSD, but due to a number of factors including manufacturing costs and increasing performance of TLC-based drives, there are very few Class 30 drives today. Workstation users desiring higher performance than Class 20 should look to NVMe devices.
Class 40 drives are predominantly mainstream NVMe devices that incorporate TLC flash. There are a significant number of different models available in Class 40, which tends to lead to performance variation as newer generations replace older generations.
Class 50 drives are the highest performing SSDs offered on Precision workstations. They provide some significant performance gains over Class 40. Many are based on MLC flash, while some incorporate newer, faster technologies such as 3D Xpoint.
