System Information Viewer is a general Windows utility for displaying lots of useful Windows, Network and hardware info - CPU info, PCI info, PCMCIA info, USB info, Machine Info, Hardware Sensors, Networked computers, Operating System Information and more. I use Craig Hart's pcidevs.txt file for my PCI device display with my usbdevs.txt being used for the USB devices, mondevs.txt for monitor descriptions and pcmdevs.txt for PCMCIA device descriptions.
This software is the portable version of System Information Viewer. As its title suggests, the tool lets you view various details about the system you are using.

Thanks to its portability, System Information Viewer doesn't require installation. So, you can place the software on an external drive and directly run it on any computer. Plus, your Windows registry will not be changed.

The interface of the program is based on a standard window in which you can check out data about your operating system, resource usage, system physical memory, paging file and file cache, and others.

In addition, you can save local, PCI, DMI, DIMM SPD, selected or all data, copy the bitmap, view menus, battery, STC and MEM information, as well as access Registry Editor.

Furthermore, you can view information on processes, services and entries of programs which automatically run at system startup, get your IP address and a summary on the current and average CPU, run a CPU benchmark, change the interface language and temperature units, and more.

Portable System Information Viewer uses a low-to-moderate amount of system resources, includes a well-drawn help file with descriptions for rookies and didn't freeze, crash or pop up errors during our tests. We highly recommend this tool to all users