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HWDIRECT is an advanced low-level hardware register access software utility for Windows.  It allows user to read and modify PC system hardware registers. With current latest version, HWDIRECT encapsulates nine separate tools.  They are CPU MSR Read/Write, PCI Read/Write (Support PCI Express Enhanced Configuration space registers), SMBUS Access, CPUID Info, I/O Read/Write, CMOS Read/Write, Memory Dump, Hex Viewer/Editor, and OSInfo.  To download HWDIRECT, there are zip version or installer version available.  You can either download and unzip the HWDIRECT to a directory then run it from there, or you can download Installer version which provides an easy and fast install/uninstall process.  The total package size of HWDIRECT is less than 1M Bytes.  You can fit it to a single floppy disk and run it from there.

Detail Infomation for individual tool:

• MSR Read/Write is used to access CPU MSR.  It supports Multi-Processor system.  Common CPU MSR includes MTRR and IORR.  All x-86 CPU MSR are supported by this tool.
• PCI Read/Write is used to access PCI config space register of all PCI devices.  PCI Express (PCI-E) device enhanced configuration space registers can be accessed as well.
• SMBUS Access is used to access registers of smbus devices (Currently INTEL,VIA, ATI, and NVidia chipsets are supported.)  One usage is to read and write memory SPD data.
• CPUID Info provides CPUID instruction information.  It supports Multi-Processor system.
• I/O Read/Write is used to access I/O port.  This includes direct I/O access and index I/O access.
• CMOS Read/Write is used to access CMOS data area located in chipset.
• Memory Dump is used to access physical memory and memory mapped registers. 
• Hex Viewer/Editor is used to edit file in hex mode.
• OSInfo displays current operating system information, including major version, minor version, build number and service pack version.

View screenshot

System Requirements:

• Windows 2000/XP/98/Me, Windows XP 64-bit edition for AMD64, Windows 2003 server (including 64-bit edition for AMD64), Windows Vista, Windows Vista x64
• 16MB memory.

Intended Users:

Hardware engineers, software driver developers, BIOS engineers, QA engineers, performance test engineers, hardware/software diagnostic engineers, etc.

License:

You can download the HWDIRECT for evaluation purpose for 30 days.  After that you either buy the standard license or remove HWDIRECT from your computer.  Evaluation version disables Write To Hardware and Save To File functions.

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