Dmidecode

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2.12 GPL (GNU General Public License)    
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Dmidecode project reports information about your system's hardware.

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Dmidecode project reports information about your system's hardware as described in your system BIOS according to the SMBIOS and DMI standard (see a sample output).

This information typically includes system manufacturer, model name, serial number, BIOS version, asset tag as well as a lot of other details of varying level of interest and reliability depending on the manufacturer.

This will often include usage status for the CPU sockets, expansion slots (e.g. AGP, PCI, ISA) and memory module slots, and the list of I/O ports (e.g. serial, parallel, USB).

Part of the dmidecode code can be found in the Linux kernel, where DMI data is used to enable or disable specific portions of code depending on the specific hardware. Thus, one use of dmidecode is for kernel developers to detect system "signatures" and add them to the kernel source code when needed.

Beware that DMI data have proven to be too unreliable to be blindly trusted. Dmidecode does not scan your hardware, it only reports what the BIOS told it to.

Three additional tools come with dmidecode:

- biosdecode prints all BIOS related information it can find (see a sample output);
- ownership retrieves the "ownership tag" that can be set on Compaq computers;
- vpddecode prints the "vital product data" information that can be found in almost all IBM computers (see a sample output).

Dmidecode is known to work on the following systems:

- Linux i386
- Linux x86_64
- Linux ia64
- FreeBSD i386
- FreeBSD x86_64
- NetBSD i386
- BeOS i386
- Cygwin i386
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Last updated on April 28th, 2013
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