Speccy is a free advanced system information tools that give you details information and statistic of every hardware that plugs into your computer including CPU, motherboard, RAM, Display Card, hard drive, optical drive and any other things, it is also inform you the temperatures of each different component so you can able to locate the source of the problems whenever it happens. If you need to upgrading more memory to your CPU, you can check the available slots your cpu has and which slots already used and then you can buy the right type of memory for replacing or add to your slots, its also helpfull whenever you are going to sell you PC you can use Speccy to quickly list all of your CPU components.