RWEverything (Read & Write Everything)

http://rweverything.com/download/

they already have a portable version of the app
would like to see it get added to portable apps platform

This utility access almost all the computer hardware, including PCI (PCI Express), PCI Index/Data, Memory, Memory Index/Data, I/O Space, I/O Index/Data, Super I/O, Clock Generator, DIMM SPD, SMBus Device, CPU MSR Registers, ATA/ATAPI Identify Data, Disk Read Write, ACPI Tables Dump (include AML decode), Embedded Controller, USB Information, SMBIOS Structures, PCI Option ROMs, MP Configuration Table, E820, EDID and Remote Access. And also a Command Window is provided to access hardware manually.

Powerful utility for hardware engineers, firmware (BIOS) engineers, driver developers, QA engineers, performance test engineers, diagnostic engineers, etc.