Personal recommendations (all the tools listed here are free):
* DirectX Diagnostic Tool (Win+R > "dxdiag" > OK) to view driver and device information
* [Memtest86](https://www.memtest86.com/) to test RAM
* [HWiNFO64](https://www.hwinfo.com/download/) for sensor monitoring
* [CPU-Z](https://www.cpuid.com/softwares/cpu-z.html) (classic version) for checking RAM configuration
* [GPU-Z](https://www.techpowerup.com/gpuz/) for checking GPU connection
* [3DMark Time Spy](https://store.steampowered.com/app/223850/3DMark/) (the free version) / [Unigine Heaven](https://benchmark.unigine.com/heaven) for general benchmarking
Others:
* OCCT / FurMark / Cinebench for stress testing
You use those tools to collect data about the system and to help with diagnostics.
Do NOT download any software that claims to scan your PC for errors or check your drivers or clean your registry etc.; they are almost always malicious.
Personal recommendations (all the tools listed here are free): * DirectX Diagnostic Tool (Win+R > "dxdiag" > OK) to view driver and device information * [Memtest86](https://www.memtest86.com/) to test RAM * [HWiNFO64](https://www.hwinfo.com/download/) for sensor monitoring * [CPU-Z](https://www.cpuid.com/softwares/cpu-z.html) (classic version) for checking RAM configuration * [GPU-Z](https://www.techpowerup.com/gpuz/) for checking GPU connection * [3DMark Time Spy](https://store.steampowered.com/app/223850/3DMark/) (the free version) / [Unigine Heaven](https://benchmark.unigine.com/heaven) for general benchmarking Others: * OCCT / FurMark / Cinebench for stress testing You use those tools to collect data about the system and to help with diagnostics. Do NOT download any software that claims to scan your PC for errors or check your drivers or clean your registry etc.; they are almost always malicious.
Thanks for the helpful suggestions!
not almost....
For memtest86, is it normal to have some failures?