Science Fair Project Encyclopedia
Postcard (computing)
In computing, a postcard is a card that reports error codes produced by a POST. They are easy to use, just insert one into an available expansion slot. Postcards are available in ISA, PCI and AGP variants. The card reports either a hexadecimal number or a pattern of LEDs. The code depends on the motherboard. A book of reference tables usually accompany the card and can tell what is wrong. These can cover a large range of motherboard manufacturers, as different BIOSes use different codes. Postcards are often used by technicians to troubleshoot computers that refuse to boot. Some motherboards come with a built in display to diagnose hardware problems.
See also
- Beep codes
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details


