I usually use SIW(System Information for Windows):
SIW is an advanced System Information for Windows tool that analyzes your computer and gathers detailed information about system properties and settings and displays it in an extremely comprehensible manner.
The System Information is divided into few major categories:
Software Information: Operating System, Software Licenses (Product Keys / Serial Numbers / CD Key), Installed Software and Hotfixes, Processes, Services, Users, Open Files, System Uptime, Installed Codecs, Passwords Recovery, Server Configuration.
Hardware Information: Motherboard, CPU, Sensors, BIOS, **chipset**, PCI/AGP, USB and ISA/PnP Devices, Memory, Video Card, Monitor, Disk Drives, CD/DVD Devices, SCSI Devices, S.M.A.R.T., Ports, Printers.
Network Information: Network Cards, Network Shares, currently active Network Connections, Open Ports.
Network Tools: MAC Address Changer, Neighborhood Scan, Ping, Trace, Statistics, Broadband Speed Test
Miscellaneous Tools: Eureka! (Reveal lost passwords hidden behind asterisks), Monitor Test, Shutdown / Restart.
Real-time monitors: CPU, Memory, Page File usage and Network Traffic.